Relevant bibliographies by topics / Structural Joints

Academic literature on the topic 'Structural Joints'

Author: Grafiati
Published: 10 December 2022
Last updated: 30 January 2023

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Journal articles on the topic "Structural Joints"

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Lyu, Naesung, and Kazuhiro Saitou. "Decomposition-Based Assembly Synthesis of Space Frame Structures Using Joint Library." Journal of Mechanical Design 128, no. 1 (November 25, 2004): 57–65. http://dx.doi.org/10.1115/1.1909203.

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This paper presents a method for identifying the optimal designs of components and joints in the space frame body structures of passenger vehicles considering structural characteristics, manufacturability, and assembleability. Dissimilar to our previous work based on graph decomposition, the problem is posed as a simultaneous determination of the locations and types of joints in a structure and the cross sections of the joined structural frames, selected from a predefined joint library. The joint library is a set of joint designs containing the geometry of the feasible joints at each potential joint location and the cross sections of the joined frames, associated with their structural characteristics as equivalent torsional springs obtained from the finite element analyses of the detailed joint geometry. Structural characteristics of the entire structure are evaluated by finite element analyses of a beam-spring model constructed from the selected joints and joined frames. Manufacturability and assembleability are evaluated as the manufacturing and assembly costs estimated from the geometry of the components and joints, respectively. The optimization problem is solved by a multiobjective genetic algorithm using a direct crossover. A case study on an aluminum space frame of a midsize passenger vehicle is discussed.
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KUREJKOVÁ, Marta, and František WALD. "Design of haunches in structural steel joints." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 23, no. 6 (June 22, 2017): 765–72. http://dx.doi.org/10.3846/13923730.2017.1281838.

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The paper presents research in design of haunches in structural steel joints. Experimental results of six speci­mens of haunches with and without flanges are presented. Three specimens are without flanges and three specimens are supported by additional flanges. Flanges differ in stiffness to observe the increase in haunch resistances and the effect on buckling shapes. The research finite element model (RFEA) is studied by material and geometrical nonlinear finite element analysis with imperfections under the actual stress conditions and validated on the measured experimental data. The validity is demonstrated on the comparison of load-deflection curves, failure modes, stress distributions and yield line patterns. The stability analysis of a joint with a haunch is related to the research into component based finite element models of complex joints. The input and the results of the research finite element model are summarised in a benchmark case of a haunch with a flange. A numerical study illustrates the effect of the flange stiffness on the joint’s resistance. The effect is demonstrated on a simple arrangement with triangular stiffeners and on a beam-to-column joint. The main goal of the research is to verify proposed design procedure for stiffeners in steel joints.
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Skowrońska, Beata, Tomasz Chmielewski, and Dariusz Zasada. "Assessment of Selected Structural Properties of High-Speed Friction Welded Joints Made of Unalloyed Structural Steel." Materials 16, no. 1 (December 22, 2022): 93. http://dx.doi.org/10.3390/ma16010093.

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Commonly used S235JR structural steel, generally associated with good weldability, was joined by high-speed friction welding (HSFW). The friction welding tests were performed with a rotational speed of n = 8000 rpm and four different values of the unit pressure in the friction phase (pf) in the range of 64–255 MPa. The obtained joints were subjected to metallographic observations using an optical microscope; in selected zones of friction joints the average grain size was specified in accordance with the EN ISO 643:2012 standard; the hardness of friction joints was measured using the Vickers method. The friction-welded joint with the highest pf was EBSD-investigated. The obtained friction-welded joints resembled an hourglass, and the microstructure of individual zones of the joints differed depending on the height (axis, radius) of the observations. The generated joining conditions resulted in a significant refinement of the microstructure in the friction weld—the average grain size is about 1 µm2 (for base material it was 21 µm2). The highest increase in hardness above 340 HV0.1 was recorded in the friction weld of the welded joint with the lowest used value pressure in the friction phase. Such a sharp increase in hardness can make the resulting friction-welded joint become sensitive to dynamic or fatigue loads. The electron backscatter diffraction (EBSD) investigation confirmed the strong refinement of the microstructure in the friction-welded joint and the occurrence of the phenomenon of dynamic recrystallization (DRX). The friction weld was also characterized by a large share of high-angle boundaries (HAGBs) >80%. These results may indicate that during high-speed friction welding it is possible to create conditions like those obtained during the High-Pressure Torsion (the method used to produce UFG materials) process.
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Grigorenko, G. M., V. D. Poznyakov, T. A. Zuber, and V. A. Kostin. "Peculiarities of formation of structure in welded joints of microalloyed structural steel S460M." Paton Welding Journal 2017, no. 10 (October 28, 2017): 2–8. http://dx.doi.org/10.15407/tpwj2017.10.01.

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Pozhbelko, V. I., and E. N. Kuts. "Structural Synthesis of a Family of Planar 8-Link Kinematic Chains for Linkages with Multiple Joints and the Most Complex Ternary Link." Proceedings of Higher Educational Institutions. Маchine Building, no. 01 (718) (January 2020): 21–31. http://dx.doi.org/10.18698/0536-1044-2020-1-21-31.

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Structural synthesis of closed kinematic chains to create various mechanisms is the first and most difficult stage of creative design of complex machines due to the large variance of possible structural solutions. In this paper, the authors examine the problem of structural synthesis of a family of eight-link kinematic chains with multiple joints of various types and the most complex three-joint link in order to create multi-loop multiple-joint mechanisms with one degree of freedom. To solve this problem, a synthesis technique is proposed based on the search for all integer solutions of a generalized structural mathematical model of plane linkage mechanisms and the identification of all structurally nonisomorphic kinematic chains using a two-column P-matrix. As the result of the structural synthesis, a family of eight-link multiple joint kinematic chains is obtained, which contains seven new kinematic structures. Examples of creating 1-DOF mechanisms with multiple joints based on the obtained new structures are presented. They confirm the effectiveness of using the structural synthesis procedure and analysis of complex mechanisms with multiple joints in various areas of modern engineering (precise guiding mechanisms, automatic lines, technological machines, robots, manipulators, etc.).
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Sadowski, T., T. Balawender, R. Sliwa, P. Golewski, and M. Knec. "Modern Hybrid Joints in Aerospace: Modelling and Testing / Nowoczesne Połaczenia Hybrydowe W Lotnictwie: Modelowanie I Badania Eskperymentalne." Archives of Metallurgy and Materials 58, no. 1 (March 1, 2013): 163–69. http://dx.doi.org/10.2478/v10172-012-0168-3.

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The aim of the paper is to review different types of modern hybrid joints applied in aerospace. We focused on three particular cases: 1) spot welding - adhesive, 2) rivet-bonded and 3) clinch-bonded joints. The numerical models presented in the paper for these joints describe their complex behaviour under mechanical loading. The numerical calculations performed using ABAQUS code were compared to experimental results obtained by application of the Digital Image Correlation system (DIC) ARAMIS. The results investigated within the paper lead to the following major conclusions: - the strengthening of joints by application of adhesive significantly improve static strength, - the final failure of the joined structural system significantly depends on the surface adhesive area, - the stiffening effects of the hybrid joint lead to higher reliability and durability of the structural joints.
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Lyu, Naesung, Byungwoo Lee, and Kazuhiro Saitou. "Optimal Subassembly Partitioning of Space Frame Structures for In-Process Dimensional Adjustability and Stiffness." Journal of Mechanical Design 128, no. 3 (August 11, 2005): 527–35. http://dx.doi.org/10.1115/1.2181599.

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A method for optimally synthesizing multicomponent structural assemblies of an aluminum space frame (ASF) vehicle body is presented, which simultaneously considers structural stiffness, manufacturing and assembly costs and dimensional integrity under a unified framework based on joint libraries. The optimization problem is posed as a simultaneous determination of the location and feasible types of joints in a structure selected from the predefined joint libraries, combined with the size optimization for the cross sections of the joined structural frames. The structural stiffness is evaluated by finite element analyses of a beam-spring model modeling the joints and joined frames. Manufacturing and assembly costs are estimated based on the geometries of the components and joints. Dissimilar to the enumerative approach in our previous work, dimensional integrity of a candidate assembly is evaluated as the adjustability of the given critical dimensions, using an internal optimization routine that finds the optimal subassembly partitioning of an assembly for in-process adjustability. The optimization problem is solved by a multiobjective genetic algorithm. An example on an ASF of the midsize passenger vehicle is presented, where the representative designs in the Pareto set are examined with respect to the three design objectives.
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Bauchau, O. A., and S. Han. "Flexible joints in structural and multibody dynamics." Mechanical Sciences 4, no. 1 (February 13, 2013): 65–77. http://dx.doi.org/10.5194/ms-4-65-2013.

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Abstract. Flexible joints, sometimes called bushing elements or force elements, are found in all structural and multibody dynamics codes. In their simplest form, flexible joints simply consist of sets of three linear and three torsional springs placed between two nodes of the model. For infinitesimal deformations, the selection of the lumped spring constants is an easy task, which can be based on a numerical simulation of the joint or on experimental measurements. If the joint undergoes finite deformations, identification of its stiffness characteristics is not so simple, specially if the joint is itself a complex system. When finite deformations occur, the definition of deformation measures becomes a critical issue. This paper proposes a family of tensorial deformation measures suitable for elastic bodies of finite dimension. These families are generated by two parameters that can be used to modify the constitutive behavior of the joint, while maintaining the tensorial nature of the deformation measures. Numerical results demonstrate the objectivity of the deformations measures, a feature that is not shared by the deformations measures presently used in the literature. The impact of the choice of the two parameters on the constitutive behavior of the flexible joint is also investigated.
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Beards, C. F. "Damping in Structural Joints." Shock and Vibration Digest 21, no. 4 (April 1, 1989): 3–5. http://dx.doi.org/10.1177/058310248902100403.

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Padmanabhan, K. K., and A. S. R. Murty. "Damping in Structural Joints Subjected to Tangential Loads." Proceedings of the Institution of Mechanical Engineers, Part C: Mechanical Engineering Science 205, no. 2 (March 1991): 121–29. http://dx.doi.org/10.1243/pime_proc_1991_205_099_02.

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Metallic mating surfaces in machine joints offer an excellent source of energy dissipation, resulting in damped dynamic structural response, for example in machine tools. This paper describes the results of a series of experiments where the energy loss per cycle occurring at preloaded flat metallic interfaces subjected to cyclic tangential forces are measured. The effects of certain pertinent joint variables on the joint damping effectiveness are investigated. The results should be useful to the designers of machine tool structures, where damping occurring in joints is important.
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Dissertations / Theses on the topic "Structural Joints"

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Tol, Serife. "Dynamic Modeling Of Structural Joints." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614368/index.pdf.

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Complex systems composed of many substructures include various structural joints connecting the substructures together. These mechanical connections play a significant role in predicting the dynamic characteristics of the assembled systems accurately. Therefore, equivalent dynamic models of joints that consist of stiffness and damping elements should be developed and the joint parameters should be determined for an accurate vibration analysis. Since it is difficult to estimate joint parameters accurately by using a pure analytical approach, it is a general practice to use experimental measurements to model joints connecting substructures. In this study an experimental identification method is suggested. In this approach the frequency response functions (FRFs) of substructures and the coupled structure are measured and FRF decoupling method is used to identify equivalent dynamic characteristics of bolted joints. Since rotational degrees of freedom (RDOF) in connection dynamics is very important, a structural joint is modeled with translational, rotational and cross-coupling stiffness and damping terms. FRF synthesis and finite-difference formulations are used for the estimation of unmeasured FRFs and RDOF related FRFs, respectively. The validity and application of the proposed method are demonstrated both numerically and experimentally. In simulation studies, simulated experimental values are used, and it is seen that the identification results are prone to high errors due to noise in measurement and the matrix inversions in the identification equations. In order to reduce the effect of noise, it is proposed to extract the joint properties by taking the average of the results obtained at several frequencies in the frequency regions sensitive to joint parameters. Yet, it is observed in practical applications that experimental errors combine with the measurement noise and the identification results still may not be so accurate. In order to solve this problem, an update algorithm is developed. In the approach proposed, the identified dynamic parameters are used as initial estimates and then optimum dynamic parameters representing the joint are obtained by using an optimization algorithm. The application of the proposed method is performed on a bolted assembly. It is shown with experimental studies that this method is very successful in identifying bolted joint parameters. The accuracy and applicability of the identification method suggested are illustrated by using a dynamically identified bolt in a new structure, and showing that the calculated FRFs in which identified joint parameters are used, match perfectly with the measured ones for the new structure. In this study, the effects of bolt size and quality of bolts, as well as the bolt torque on the joint properties are also studied by making a series of experiments and identifying the joint parameters for each case.
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Hutchinson, Allan Robert. "Durability of structural adhesive joints." Thesis, University of Dundee, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245438.

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Little, Matthew S. G. "The durability of structural adhesive joints." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417769.

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Bigwood, David Andrew. "The design of structural adhesive joints." Thesis, University of Surrey, 1990. http://epubs.surrey.ac.uk/770397/.

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This thesis details the work carried out under two research projects at the University of Surrey. The first project titled The Design of Structural Adhesive Joints', was of three years duration from September 1985 to August 1988 and was sponsored by the Science and Engineering Research Council. The second project, sponsored by Ford UK Ltd, and tided 'A General Joint Analysis Facility extended certain aspects of the analysis work initiated In the first period of research. The objective of the work was to address the problem of integrating structural adhesives Into the design process and to provide procedures that would facilitate this integration in a quantitative, rather than the more usual qualitative way. To be effective, such an approach needed to consider not only a means of analyzing a proposed joint but also a way of predicting the actual failure of that joint. An extensive literature survey of analyses available to the design engineer has been completed. The analyses investigated were found to be lacking in several critical respects, and as part of this research, methods of analysis overcoming some of these limitations have been developed. The analyses produced are based on earlier approaches but extended and modified as appropriate. The work on all the analyses produced has been carried out by considering a simple adherend-adhesive sandwich configuration. Five different analyses, considering the sandwich to be modelled with differing degrees of complexity, have been produced. In all of the analyses the adherends are assumed to behave as cylindrically bent plates capable of sustaining both tensile and shear forces and bending moments, with the adhesive transmitting both tensile and/or shear loads. Initially an elastic solution was obtained, adopting a relatively simple approach. This enabled the subsequent enhancement of including non-linear material behaviour to utilize the same governing equations, thus maintaining consistentcy. The General Elastic Analysis (GEA) has been extensively simplified to produce a number of two parameter design formulae suitable for use by an engineer at an early stage in the design process. The two analyses produced by this simplification are called the Simplified Peel Analysis (SPA) and the Simplified Shear Analysis (SSA), so called because they consider the named component of stress in the adhesive layer only. The GEA was then extended to include non-linear material properties in the adhesive layer, and an analysis called the Non-linear Adhesive Analysis (NLAA) was produced. A programme of validation using the NLAA and a non-linear finite element analysis of similar joint configurations was carried out. Additional comparisons with existing analyses have also been undertaken where possible. The NLAA has been shown to produce extremely accurate results for the stresses in the adhesive layer when compared with the component stresses predicted by the finite element method (FEM). The NLAA has been used successfully to determine the spread of yield in a single-lap joint, giving dose agreement with results from analysis using the FEM, but with much reduced computer and operator time. The final stage of the work was concerned with the Inclusion of non-linear adherend material properties, and an analysis called the Full Non-linear Analysis (FNLA) has been produced which Incorporates this refinement to the general model. Again the finite element method has been used to assess the accuracy of this new analysis, and the results from this work are presented here. Derivations of both forms of the elastic analysis and of the non-linear and full non-linear analyses are reported in Chapters 4 and 5 and the software appropriate to each Is described fully. The Initial survey of available literature has shown that there Is considerable lack of knowledge about possible causes of joint failure. Specifically, It Is noted that a criterion by which joint failure can be measured has not been uniquely defined. In an attempt to provide a criterion or criteria to enable the prediction of joint failure a 'Failure Criteria' test and analysis programme has been completed. Joint configurations were manufactured using a range of adhesives with different levels of ductility, and adherends of different stiffnesses. Batches of these test coupons were tested to failure under both predominantly mode I and mode 11ty pes of loading. Both FEM and FNLA analyses of each test configuration have been carried out, and the stress and strain distributions at the levels of failure load were established for each batch and studied to establish any correlation between various proposed failure criteria. Close agreement between certain factors and the equivalent bulk material properties was noted for test batches. The applicability of various failure criteria for both the mode I and mode II test configurations and possible general criteria are discussed. The failure of the mode I test configurations has been shown to be governed by the local level of maximum principal stress at the end of the overlap. The mode II test configurations also show dose agreement in terms of the maximum principal stress, but agreement with bulk data Is poor. Therefore, a further failure criterion is proposed for the mode II joints in terms of the 'global yielding' of the adhesive layer. The bulk property testing of the adherend and adhesive materials to establish their physical properties for use in the finite element analysis of the test programme Is also fully documented.
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Malladi, Sailaja. "Parametric modeling and analysis of structural bonded joints." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=80.

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Thesis (M.S.)--West Virginia University, 2004.
Title from document title page. Document formatted into pages; contains x, 56 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 52-53).
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Page, Steven M. "Investigation into the Behavior of Bolted Joints." Wright State University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=wright1163527930.

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Read, Paul John Charles Lewis. "Fatigue characterisation of FRP structural tee joints." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242730.

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Knox, Esther M. "Marine applications for structural adhesives." Thesis, University of Glasgow, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241876.

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Shrestha, Alina. "Fatigue Testing and Data Analysis of Welded Steel Cruciform Joints." ScholarWorks@UNO, 2013. http://scholarworks.uno.edu/td/1670.

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In this study, ABS Publication 115, “Guidance on Fatigue Assessment of Offshore Structures” is briefly reviewed. Emphasis is on the S-N curves based fatigue assessment approach of non-tubular joints, and both size and environment effects are also considered. Further, fatigue tests are performed to study the fatigue strength of load-carrying and non-load-carrying steel cruciform joints that represent typical joint types in marine structures. The experimental results are then compared against ABS fatigue assessment methods, based on nominal stress approach, which demonstrates a need for better fatigue evaluation parameter. A good fatigue parameter by definition should be consistent and should correlate the S-N data well. The equivalent structural stress parameter is introduced to investigate the fatigue behavior of welded joints using the traction based structural stress approach on finite element models of specimens, and representing the data as a single Master S-N curve.
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Bianchi, Francesco. "Numerical modelling of through-thickness reinforced structural joints." Thesis, Cranfield University, 2012. http://dspace.lib.cranfield.ac.uk/handle/1826/7992.

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The main objective of this research study was to develop numerical models to analyse the mechanical and fracture properties of through-thickness reinforced (TTR) structural joints. The development of numerical tools was mainly based on the finite element (FE) method. A multi-scale approach was used: the bridging characteristics of a single reinforcement was studied at micromechanical level by simulating the single-pin response loaded either in mode-I or in mode-II. The force-displacement curve (bridging law) of the pin was used to define the constitutive law of cohesive elements to be used in a FE analysis of the global structure. This thesis is divided into three main parts: (I) Background, context and methodology, (II) Development for composite joints, and (III) Development for hybrid metal-composite joints. In the first part the objectives of the thesis are identified and a comprehensive literature review of state-of-art throughthickness reinforcement methods and relative modelling techniques has been undertaken to provide a solid background to the reader. The second part of the thesis deals with TTR composite/composite joints. The multi-scale modelling technique was firstly applied to predict delamination behaviour of mode-I and in mode-II test coupons. The bridging mechanisms of reinforcements and the way these increase the delamination resistance of bonded interfaces was deeply analysed, showing how the bridging characteristics of the reinforcement features affected the delamination behaviour. The modelling technique was then applied to a z-pin reinforced composite T-joint structure. The joint presented a complicated failure mode which involved multiple crack path and mixed-mode delamination, demonstrating the capability of the model of predicting delamination propagation under complex loading states. The third part of the thesis is focused on hybrid metal/composite joints. Mode- I and mode-II single-pin tests of metal pin reinforcements embedded into a carbon/epoxy laminate were simulated. The model was validated by comparing with experimental tests. Then the effects of the pin geometry on the pin bridging characteristics were analysed. The model revealed that both in mode-I and mode-II small pins perform better than large pins and also that the pin shape plays an important role in the pin failure behaviour. The modelling technique was then applied to simulate a metal-composite double-lap joint loaded in traction. The model showed that to obtain the best performance of the joint an accurate selection of pin geometry, pin arrangement and thickness of the two adherends should be done.
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Books on the topic "Structural Joints"

1

Chu, Yue Pun. Structural timber joints. Kuala Lumpur, Malaysia: Forest Research Institute Malaysia, 1987.

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R, Narayanan, ed. Structural connections. London: Elsevier Applied Science, 1989.

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Moore, I. D., D. Becerril García, H. Sezen, and T. Sheldon. Structural Design of Culvert Joints. Washington, D.C.: Transportation Research Board, 2012. http://dx.doi.org/10.17226/22748.

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Adams, Robert D. Structural adhesive joints in engineering. 2nd ed. London: Chapman & Hall, 1997.

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Ramberger, Günter. Structural bearings and expansion joints for bridges. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2002. http://dx.doi.org/10.2749/sed006.

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<p>Bridge superstructures have to be designed to permit thermal and live load strains to occur without unintended restraints. Bridge bearings have to transfer forces from the superstructure to the substructure, allowing all movements in directions defined by the designer. The two functions -transfer the loads and allow movements only in the required directions for a long service time with little maintenance - are not so easy to fulfil. Differ­ent bearings for different purposes and requirements have been developed so, that the bridge designer can choose the most suitable bearing.</p> <p>By the movement of a bridge, gaps are necessary between superstructure and substructure. Expansion joints fill the gaps, allowing traffic loads tobe carried and allowing all expected displacements with low resistance. Ex­pansion joints should provide a smooth transition, avoid noise emission as far as possible and withstand all mechanical actions and chemical attacks (de-icing) for a long time. A simple exchange of all wearing parts and of the entire expansion joint should be possible.</p> <p>The present volume provides a comprehensive survey of arrangement, construction and installation of bearings and expansion joints for bridges including calculation of bearing reactions and movements, analysis and design, inspection and maintenance. A long list of references deals with the subjects but also with aspects in the vicinity of bearings and expansion joints.</p> <p>This book is aimed at both students and practising engineers, working in the field of bridge design, construction, analysis, inspection, maintenance and repair.</p>
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Ivanyi, Miklos, and Charalambos C. Baniotopoulos, eds. Semi-Rigid Joints in Structural Steelwork. Vienna: Springer Vienna, 2000. http://dx.doi.org/10.1007/978-3-7091-2478-9.

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1974-, Chen Yan, ed. Motion structures: Deployable structural assemblies of mechanisms. London: Spon Press, 2011.

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Papini, Marcello. Fracture load prediction of structural adhesive joints. Ottawa: National Library of Canada, 1993.

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International Association for Bridge and Structural Engineering., ed. Structural bearings and expansion joints for bridges. Zurich, Switzerland: IABSE, 2002.

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Tong, Liyong. Analysis and design of structural bonded joints. Boston: Kluwer Academic, 1999.

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Book chapters on the topic "Structural Joints"

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Bhattacharya, A. R. "Joints and Fractures." In Structural Geology, 245–69. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-80795-5_13.

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Hussey, Bob, and Jo Wilson. "Basic Design of Bonded Joints." In Structural Adhesives, 9–12. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1203-1_5.

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Ramberger, Günter. "Expansion Joints." In Structural bearings and expansion joints for bridges, 51–89. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2002. http://dx.doi.org/10.2749/sed006.051.

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Hartshorn, S. R. "The Durability of Structural Adhesive Joints." In Structural Adhesives, 347–406. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4684-7781-8_9.

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Fratini, L. "FSW of Lap and T-Joints." In Structural Connections for Lightweight Metallic Structures, 125–49. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/8611_2010_48.

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Rousseau, Carl Q., and Endel V. Iarve. "Durability of Structural Joints." In Long-Term Durability of Polymeric Matrix Composites, 483–512. Boston, MA: Springer US, 2011. http://dx.doi.org/10.1007/978-1-4419-9308-3_12.

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Anderson, G. P., and K. L. De Vries. "Predicting strength of adhesive joints from test results." In Structural Integrity, 191–200. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0927-4_15.

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Portelli, Gene B. "Testing, Analysis, and Design of Structural Adhesive Joints." In Structural Adhesives, 407–49. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4684-7781-8_10.

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Blaauwendraad, Johan. "Frame Joints and Corbels." In Stringer-Panel Models in Structural Concrete, 33–38. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76678-2_4.

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Machač, Martin, Jan Papuga, Karel Doubrava, and Jakub Fišer. "Fatigue Analysis of Thin-Walled Welded Hollow Section Joints." In Structural Integrity, 49–55. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-97822-8_6.

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Conference papers on the topic "Structural Joints"

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Lyu, Naesung, and Kazuhiro Saitou. "Decomposition-Based Assembly Synthesis of Space Frame Structures Using Joint Library." In ASME 2004 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/detc2004-57301.

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This paper presents a method for identifying the optimal designs of components and joints in the space frame body structures of passenger vehicles considering structural characteristics, manufacturability and assembleability. Dissimilar to our previous work based on graph decomposition, the problem is posed as a simultaneous determination of the locations and types of joints in a structure and the cross sections of the joined structural frames, selected from a predefined joint library. The joint library is a set of joint designs containing the geometry of the feasible joints at each potential joint location and the cross sections of the joined frames, associated with their structural characteristics as equivalent torsional springs obtained from the finite element analyses of the detailed joint geometry. Structural characteristics of the entire structure are evaluated by finite element analyses of a beam-spring model constructed from the selected joints and joined frames. Manufacturability and assembleability are evaluated as the manufacturing and assembly costs estimated from the geometry of the components and joints, respectively. The optimization problem is solved by a multi-objective genetic algorithm using a direct crossover. A case study on an aluminum space frame (ASF) of a middle size passenger vehicle is discussed.
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SHARIFI, PARVIZ, and WILLIAM SABLE. "A nonlinear joint element for the analysis of adhesive bonded joints." In 32nd Structures, Structural Dynamics, and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-1008.

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Ettouney, Mohammed M., Raymond P. Daddazio, and Najib N. Abboud. "Passive Control of Multi-Jointed Structures." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0561.

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Abstract Reducing the amplitude of structural response generated by noise sources such as machine vibrations using passive control measures is of interest to design engineers. This study will focus on the role of joints in multi-jointed structures in the passive control of structural response. In a multi-jointed structure, joints play a major role in the response of the structure. First, joints regulate the equilibrium of the whole structure. In such a role, they can act, for example, to transform a pure axial wave in a horizontal member in the structure into a pure flexural wave in a vertical member connected to it at a joint. Second, they are the “recipients” of the noise sources from the secondary beams and floors of the structure. In such a role, joints act as a filter between the noise source and the rest of the structure. These two roles point to the possibility of modifying joints so as to passively control the response of a multi-jointed structure. In this study, the addition of energy loss mechanisms, which are concentrated at the joints is evaluated. These energy loss mechanisms include adding filler materials with high loss factor. The different parameters affecting the structural response will be evaluated. These parameters include the amount of added material to the joints, relative loss factors of both structure and the added material and the degree of reductions in structural responses. In all the cases studied, a consideration of the practical engineering detailing of such systems will be discussed.
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SNYDER, B., J. BURNS, and V. VENKAYYA. "Composite bolted joints analysis program." In 29th Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1988. http://dx.doi.org/10.2514/6.1988-2423.

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GRIFFIN, JR., O., M. HYER, S. YALAMANCHILI, M. SHUART, C. PRASAD, and D. COHEN. "Analysis of multifastener composite joints." In 33rd Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1992. http://dx.doi.org/10.2514/6.1992-2426.

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Kirkemo, Finn. "Structural Capacities of Flanged Joints." In ASME 2018 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/pvp2018-85088.

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Flanged joints are used in high pressure applications such as process piping, pressure vessels, risers, pipelines and subsea production systems. These flanges are subjected to external loads in addition to pressure. A brief description of high pressure flanges standards is given. Design of high pressure flanged joints are covered in many design codes. A review of allowable stresses, load factors for bolting, flanges and bolt preload requirements has been made for the following codes: ASME VIII-2, ASME VIII-3, ASME B31.3 Chapter IX, API 6A, API 6X, API 17D, API 17TR7, API 17TR8, API 17G, EN 1591-1 and NORSOK U-001. This paper also presents analytically based structural load-capacity (ultimate strength) design equations for flanged joints. The design equations are used to calculate rated working pressure and flange-face separation load-capacity of API 6A type 6BX flanges. Future code recommendations for flange design are provided.
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Sun, Hsien-Tang, Yanmin Yan, Fu-Kuo Chang, Hsien-Tang Sun, Yanmin Yan, and Fu-Kuo Chang. "Lateral constraining effect on bolted composite joints." In 38th Structures, Structural Dynamics, and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1997. http://dx.doi.org/10.2514/6.1997-1123.

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GARBO, S., S. HONG, and W. KIM. "Strength evaluation of helicopter composite bolted joints." In 27th Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1986. http://dx.doi.org/10.2514/6.1986-973.

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Lyu, Naesung, Byungwoo Lee, and Kazuhiro Saitou. "Decomposition-Based Assembly Synthesis for Structural Stiffness and Dimensional Integrity." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-62229.

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A method for optimally synthesizing multi-component structural assemblies of an aluminum space frame (ASF) vehicle body is presented, which simultaneously considers structural stiffness, manufacturing and assembly cost and dimensional integrity under a unified framework based on joint libraries. The optimization problem is posed as a simultaneous determination of the location and feasible types of joints in a structure selected from the predefined joint libraries, combined with the size optimization for the cross sections of the joined structural frames. The structural stiffness is evaluated by finite element analyses of a beam-spring model modeling the joints and joined frames. Manufacturing and assembly costs are estimated based on the geometries of the components and joints. Dimensional integrity is evaluated as the adjustability of the assembly for the given critical dimensions. The optimization problem is solved by a multi-objective genetic algorithm. An example on an ASF of the mid-size passenger vehicle is presented, where the representative designs in the Pareto set are examined with respect to the three design objectives.
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CARD, MICHAEL, and ROBERT WINGATE. "Structural behavior of solid rocket motor field joints." In 28th Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-701.

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Reports on the topic "Structural Joints"

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Gao, Jun-Dong, Huan-Xin Yuan, and Xin-Xi Du. NUMERICAL STUDY ON STRUCTURAL BEHAVIOUR OF STAINLESS STEEL BEAM-TO-COLUMN JOINTS WITH DOUBLE EXTENDED END-PLATE CONNECTIONS. The Hong Kong Institute of Steel Construction, December 2018. http://dx.doi.org/10.18057/icass2018.p.157.

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Nema, Arpit, and Jose Restrep. Low Seismic Damage Columns for Accelerated Bridge Construction. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, December 2020. http://dx.doi.org/10.55461/zisp3722.

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This report describes the design, construction, and shaking table response and computation simulation of a Low Seismic-Damage Bridge Bent built using Accelerated Bridge Construction methods. The proposed bent combines precast post-tensioned columns with precast foundation and bent cap to simplify off- and on-site construction burdens and minimize earthquake-induced damage and associated repair costs. Each column consists of reinforced concrete cast inside a cylindrical steel shell, which acts as the formwork, and the confining and shear reinforcement. The column steel shell is engineered to facilitate the formation of a rocking interface for concentrating the deformation demands in the columns, thereby reducing earthquake-induced damage. The precast foundation and bent cap have corrugated-metal-duct lined sockets, where the columns will be placed and grouted on-site to form the column–beam joints. Large inelastic deformation demands in the structure are concentrated at the column–beam interfaces, which are designed to accommodate these demands with minimal structural damage. Longitudinal post-tensioned high-strength steel threaded bars, designed to respond elastically, ensure re-centering behavior. Internal mild steel reinforcing bars, debonded from the concrete at the interfaces, provide energy dissipation and impact mitigation.
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Kerber, Steve, Daniel Madrzykowski, James Dalton, and Robert Backstrom. Improving Fire Safety by Understanding the Fire Performance of Engineered Floor Systems and Providing the Fire Service with Information for Tactical Decision Making. UL Firefighter Safety Research Institute, March 2012. http://dx.doi.org/10.54206/102376/zcoq6988.

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This research project was a collaboration of several research organizations, product manufacturers and fire service representatives to examine hazards associated with residential flooring systems to improve firefighter safety. Funding for this project was provided through the National Institute of Standards and Technology’s American Recovery and Reinvestment Act Grant Program. The main objective of this study was to improve firefighter safety by increasing the level of knowledge on the response of residential flooring systems to fire. Several types (or series) of experiments were conducted and analyzed to expand the body of knowledge on the impact of fire on residential flooring systems. The results of the study have been prepared to provide tactical considerations for the fire service to enable improved decision making on the fire scene. Experiments were conducted to examine several types of floor joists including, dimensional lumber, engineered I-joists, metal plate connected wood trusses, steel C-joists, castellated I-joists and hybrid trusses. Experiments were performed at multiple scales to examine single floor system joists in a laboratory up through a full floor system in an acquired structure. Applied load, ventilation, fuel load, span and protection methods were altered to provide important information about the impact of these variables to structural stability and firefighter safety. There are several tactical considerations that result from this research that firefighters can use immediately to improve their understanding, safety and decision making when sizing up a fire in a one or two family home. This report summarizes the results from each of the experimental series and provides discussion and conclusions of the results.
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Harris, Howard, and Mark Lewis. Proposed Leadership Structure for Joint Acquisition Programs. Fort Belvoir, VA: Defense Technical Information Center, January 2012. http://dx.doi.org/10.21236/ada564406.

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Habert, Guillaume, and Francesco Pittau. Joint synthesis “Sustainable Concrete Structures” of the NRP “Energy”. Swiss National Science Foundation (SNSF), February 2020. http://dx.doi.org/10.46446/publication_nrp70_nrp71.2020.5.en.

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All structures in Switzerland - that is, all buildings, roads, infrastructure constructions and so on - consume over their entire life cycle around 50 % of Switzerland's final energy requirement. They are also responsible for around 30 % of emissions of the greenhouse gas CO2. In recent decades, the energy requirements and CO2 emissions resulting from the use of such structures have fallen sharply. However, the grey energy contained within the structures as well as the CO2 emissions associated with the construction, renovation and demolition of buildings, remain high. There is great potential for improvement here. The joint project “Low energy concrete” provides an important basis for transforming the construction industry into a sustainable sector. It primarily focuses on the building material concrete, which is responsible for an especially high amount of grey energy and significant CO2 emissions. The results of this joint project are summarised and interpreted in this synthesis on “Sustainable Concrete Structures”. The chief objectives of the joint project were as follows: CO2 emissions and grey energy are reduced by drastically decreasing the amount of clinker in the cement. Grey energy is reduced by replacing reinforcing and prestressing steel in concrete structures with wood and plastic. The service life of the structures is extended by professional monitoring and adequate renovation measures; this reduces the average annual grey energy and CO2 emissions. The research work shows that the CO2 emissions caused by concrete and concrete structures can be reduced by a factor of 4, while the bound grey energy can be decreased by a factor of 3.
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Ames, Nicoli M., James P. Lauffer, Michael D. Jew, Daniel Joseph Segalman, Danny Lynn Gregory, Michael James Starr, and Brian Ray Resor. Handbook on dynamics of jointed structures. Office of Scientific and Technical Information (OSTI), July 2009. http://dx.doi.org/10.2172/1028891.

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Kimhi, Ayal, Barry Goodwin, Ashok Mishra, Avner Ahituv, and Yoav Kislev. The dynamics of off-farm employment, farm size, and farm structure. United States Department of Agriculture, September 2006. http://dx.doi.org/10.32747/2006.7695877.bard.

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Objectives: (1) Preparing panel data sets for both the United States and Israel that contain a rich set of farm attributes, such as size, specialization, and output composition, and farmers’ characteristics such as off-farm employment status, education, and family composition. (2) Developing an empirical framework for the joint analysis of all the endogenous variables of interest in a dynamic setting. (3) Estimating simultaneous equations of the endogenous variables using the panel data sets from both countries. (4) Analyzing, using the empirical results, the possible effects of economic policies and institutional changes on the dynamics of the farm sector. An added objective is analyzing structural changes in farm sectors in additional countries. Background: Farm sectors in developed countries, including the U.S. and Israel, have experienced a sharp decline in their size and importance during the second half of the 20th century. The overall trend is towards fewer and larger farms that rely less on family labor. These structural changes have been a reaction to changes in technology, in government policies, and in market conditions: decreasing terms of trade, increasing alternative opportunities, and urbanization pressures. As these factors continue to change, so does the structure of the agricultural sector. Conclusions: We have shown that all major dimensions of structural changes in agriculture are closely interlinked. These include farm efficiency, farm scale, farm scope (diversification), and off-farm labor. We have also shown that these conclusions hold and perhaps even become stronger whenever dynamic aspects of structural adjustments are explicitly modeled using longitudinal data. While the results vary somewhat in the different applications, several common features are observed for both the U.S. and Israel. First, the trend towards the concentration of farm production in a smaller number of larger farm enterprises is likely to continue. Second, at the micro level, increased farm size is negatively associated with increased off-farm labor, with the causality going both ways. Third, the increase in farm size is mostly achieved by diversifying farm production into additional activities (crops or livestock). All these imply that the farm sector converges towards a bi-modal farm distribution, with some farms becoming commercial while the remaining farm households either exit farming altogether or continue producing but rely heavily on off-farm income. Implications: The primary scientific implication of this project is that one should not analyze a specific farm attribute in isolation. We have shown that controlling for the joint determination of the various farm and household attributes is crucial for obtaining meaningful empirical results. The policy implications are to some extent general but could be different in the two countries. The general implication is that farm policy is an important determinant of structural changes in the farm sector. For the U.S., we have shown the different effects of coupled and decoupled (direct) farm payments on the various farm attributes, and also shown that it is important to take into account the joint farm-household decisions in order to conduct a meaningful policy analysis. Only this kind of analysis explains the indirect effect of direct farm payments on farm production decisions. For Israel, we concluded that farm policy (or lack of farm policy) has contributed to the fast structural changes we observed over the last 25 years. The sharp change of direction in farm policy that started in the early 1980s has accelerated structural changes that could have been smoother otherwise. These accelerated structural changes most likely lead to welfare losses in rural areas.
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Robinson, Jason. Structural Testing and Analysis of a Joined Wing Technology Demonstrator. Fort Belvoir, VA: Defense Technical Information Center, April 2004. http://dx.doi.org/10.21236/ada425641.

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Taylor, Andrew W. Report of a workshop on requalification of tubular steel joints in offshore structures. Gaithersburg, MD: National Institute of Standards and Technology, 1996. http://dx.doi.org/10.6028/nist.ir.5877.

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Marsh, Charles P. Development of a Joint Tightness Parameter for Sheet Pile Structures. Fort Belvoir, VA: Defense Technical Information Center, April 2002. http://dx.doi.org/10.21236/ada401544.

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