Relevant bibliographies by topics / Cantilever loading

Academic literature on the topic 'Cantilever loading'

Author: Grafiati
Published: 10 December 2022
Last updated: 19 February 2023

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Journal articles on the topic "Cantilever loading"

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Yuan, Yan Hui, He Jun Du, Xin Xia, and Yoke Rung Wong. "Modeling, Fabrication and Characterization of Piezoelectric ZnO-Based Micro-Sensors and Micro-Actuators." Applied Mechanics and Materials 444-445 (October 2013): 1636–43. http://dx.doi.org/10.4028/www.scientific.net/amm.444-445.1636.

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In this study, capabilities of zinc oxide (ZnO) thin films in sensing and actuating were investigated using micromachined micro-cantilevers. A heterogeneous piezoelectric cantilever was modeled to study its response under voltage and/or external mechanical loading. A ZnO thin-film micro-cantilever was designed based on the developed theoretical model. Simulated tip deflections of the micro-cantilever were on the nanometer level under typical electrical and mechanical input. A prototype was fabricated with microfabrication techniques. The ZnO thin film was sputtered at room temperature and demonstrated good compatibility with common chemicals and processes in micromachining. The fabricated micro-cantilever was experimentally characterized for its actuating and sensing performance. For actuator characterization tip deflection of the micro-cantilever was detected by a laser Doppler vibrometer, while for sensor characterization the micro-cantilever was calibrated as an acceleration sensor using a reference accelerometer. The experimental resonant frequency, actuating and sensing sensitivities agreed well the design specifications.
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Liu, C. C., S. C. Yang, and C. K. Chen. "Nonlinear Dynamic Analysis of Micro Cantilever Beam Under Electrostatic Loading." Journal of Mechanics 28, no. 1 (March 2012): 63–70. http://dx.doi.org/10.1017/jmech.2012.6.

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ABSTRACTA hybrid differential transformation / finite difference scheme is used to analyze the complex nonlinear behavior of an electrostatically-actuated micro cantilever beam which high aspect ratios (length/width). The validity of the proposed method is confirmed by comparing the numerical results obtained for the tip displacement and pull-in voltage of the cantilever beam with the analytical and experimental results presented in the literature. The hybrid scheme is then applied to analyze both the steady-state and the dynamic deflection behavior of the cantilever beam as a function of the applied voltage. Overall, the results confirm that the hybrid method provides an accurate and computationally-efficient means of analyzing the complex nonlinear behavior of both the current micro cantilever beam system and other micro-scale electrostatically-actuated structures.
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Xiang, Min, and Cong Juan Yang. "Analysis of Eccentric Load Causing Torsion Effects of Variable Cross-Section Continuous Box Girder during Cantilevered Casting." Advanced Materials Research 446-449 (January 2012): 1194–98. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.1194.

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The construction with hanging basket eccentric loading was studied for the cantilever casting of a 32m +48 m +32 m continuous box girder. The calculation of center deflecting angles of cantilever box girders with variable cross-section due to pure torsion was derived, and correspondingly a program was developed to calculate this formula. An analysis model of cantilever casting continuous beam bridge with hanging basket eccentric loading was established based on finite elements software, and the shear stress, the longitudinal normal stress and the combined stress of different section were analyzed under different construction process. The torsional effect due to hanging basket eccentric loading was studied and the results are helpful to guide the construction in practice.
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Liu, Wenguang, and Mark E. Barkey. "Prediction on Remaining Life of a V-Notched Beam by Measured Modal Frequency." Shock and Vibration 2019 (January 3, 2019): 1–10. http://dx.doi.org/10.1155/2019/7351386.

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A prediction method for the remaining life of a V-notched beam using measured modal frequencies is proposed in this article. The main purpose is to provide a new monitoring method of crack growth for a cantilever beam. At first, the fatigue crack growth characteristic and the change law of modal frequencies of a V-notched cantilever beam under cyclic loading were studied by experiments. Subsequently, the relation of modal frequencies and crack growth were analyzed. Thereafter, the decrease ratio of the first modal frequency was employed to reflect the crack damage so as to set up the relation of the modal frequency and the crack damage, and the evolution model between the crack damage and the cyclic loading numbers were set up. A prediction method for crack growth life was proposed for a cantilever beam based on the decrease ratio of the first modal frequency in the end. The remaining life of a V-notched cantilever beam can be obtained using the proposed method with a given endured loading cycles and the corresponding measured modal frequency. Results indicate that the remaining fatigue life of the V-notched cantilever beam is related to the decrease ratio of the modal frequency, and the predicted remaining life is in good agreement with the measured remaining life as the crack depth extends to a certain value.
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Mumcu, Emre, Hakan Bilhan, and Ali Cekici. "Marginal Bone Loss Around Implants Supporting Fixed Restorations." Journal of Oral Implantology 37, no. 5 (October 1, 2011): 549–58. http://dx.doi.org/10.1563/aaid-joi-d-10-00018.

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A key criterion of success following dental implants is the marginal bone level. Long-term clinical and radiographic evaluation is necessary to test the results of in vitro studies investigating how cantilevering of restorations or implant size affect bone level changes around implants. There is no consensus on the effect of several variables such as age, gender, implant size, and cantilever prostheses on marginal bone levels around fixed dentures supported by dental implants. Patients who received cemented, fixed restorations supported by implants and who were examined in routine recall sessions 6, 12, 24, and 36 months after loading were included in the study group. Comparative bone level measurements were obtained from images of radiographs at ×20 magnification using the CorelDraw 11.0 software program. Statistical analysis was performed using the Student t test and 1-way analysis of variance. In the 36-month observation period, there were no incidences of implant failure, excessive bone loss around implants, or peri-implant inflammation. One hundred twenty-six implants in 36 patients were evaluated, and the effect of several factors on marginal bone loss (MBL) during the 36 months after loading was analyzed statistically. There was no significant relationship between MBL and implant length or diameter, whereas age, gender, and cantilevers affected bone loss rates. MBL was elevated in older and female patients as well as in patients who received cantilevers. In cases of limiting anatomic conditions, short and/or narrow implants should be preferred over cantilever extensions.
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Peng, Long Fan, and Zhi Da Li. "Analysis on the Deflection of Cantilever Construction Based on Viscoelasticity." Advanced Materials Research 1030-1032 (September 2014): 1078–81. http://dx.doi.org/10.4028/www.scientific.net/amr.1030-1032.1078.

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The creep of concrete in the construction process of deformation influential, especially in the cantilever pouring construction, short age of concrete, creep effect more apparent. Meaning for cantilever construction of Bridges, creep analysis must be properly considered section at different time of loading values and the concrete ages of different segments. In this paper, based on the viscoelastic problem of cantilever construction of concrete creep analysis method, analyzes the deflection of cantilever construction process of a rigid-frame bridge, and compared with the actual measured value.
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Bilinska, Malgorzata, and Michel Dalstra. "The Effect of Symmetric and Asymmetric Loading of Frontal Segment with Two Curved Cantilevers: An In Vitro Study." Dentistry Journal 10, no. 4 (March 29, 2022): 52. http://dx.doi.org/10.3390/dj10040052.

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Cantilevers generate statically determined force systems. The frontal segment loading with symmetric and asymmetric cantilevers in a three-piece intrusion base arch can be used to correct midline asymmetry. Three types of 0.017″ × 0.025″ beta-titanium cantilevers: tip-back (TB), deep curve (DC), utility arch (UA) were tested on typodonts simulating intrusion of the maxillary anterior segment. Typodonts with symmetric and asymmetric cantilevers were scanned with intraoral scanner (3Shape, TRIOS, Copenhagen, Denmark) before (T0) and after (T1) the experiment, scans were superimposed using Mimics software (Materialise, Leuven, Belgium). Data were analysed with qualitative analysis. All cantilevers generated vertical and horizontal forces. For symmetric design, the DC and TB displayed intrusive force with retrusive component, UA intrusion and protrusion. The asymmetric cantilevers produced transverse displacement of anterior segment. DC created lateral, UA medial force, the anterior segment displacement was consistent with the used configuration. The movement of an anterior segment with TB is smaller compared to DC and UA. Symmetric cantilevers configurations can achieve simultaneous intrusion and retrusion or protrusion of the anterior segment. The asymmetric design with transversal force can clinically aid the correction of midline discrepancies. The effect of the cantilever configuration on delivered force direction was confirmed.
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PRABAKAR, K., J. JAYAPANDIAN, A. K. TYAGI, C. S. SUNDAR, and BALDEV RAJ. "SENSITIVIY OF A NANOCANTILEVER-BASED MASS SENSOR." Nano 05, no. 01 (February 2010): 25–30. http://dx.doi.org/10.1142/s1793292010001834.

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In the present work, mass and position sensitivity of a nanocantilever is simulated using finite element analysis. Changes in resonant frequency of various modes of a polysilicon cantilever, with a gold coating of different thickness, area, and spatial distribution is simulated. It is found that for a uniform increase in gold coating thickness, torsional mode gives an order higher mass sensitivity than vertical bending and lateral bending modes. In other cases, sensitivity is highly dependent on the position of the coating and is explained on the basis of flexural rigidity. Apart from this, simulations were performed for a point mass (gold cube) loading at various positions along the length and width axis of the cantilever. Further, for localized mass loading, cantilever was tailored for enhanced sensitivity. It is found that by introducing a step discontinuity in thickness of the cantilever, the mass sensitivity increases by two orders of magnitude and it depends on the position of step from free end, step thickness, and step width.
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Tuan Nam, Tran. "ANALYSIS OF A CANTILEVER COLUMN SUBJECTED TO CYCLIC LOADING." JOURNAL OF TECHNOLOGY & INNOVATION 1, no. 2 (March 3, 2020): 38–39. http://dx.doi.org/10.26480/jtin.02.2021.38.39.

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In a seismic incident, the structural steel columns are commonly damaged with local buckling formulation at either the top or bottom ends. This study analyzes and simulates the hysteretic behavior of a hollow square steel column under cyclic loading by adopting the fiber-element approach. This method discretizes the hinge zone into a series of fibers and considers buckling behavior of those fibers along the column wall. The analytical result was achieved in good agreement with the component test.
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El-Sayem, Mohamed G., Mohamed S. A. Saafan, and Abd El-Rahim K. Dessouk. "Modelling Of Steel Cantilever With Gfrp Under Cyclic Loading." International Journal of Civil Engineering 6, no. 5 (May 25, 2019): 23–29. http://dx.doi.org/10.14445/23488352/ijce-v6i5p105.

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Dissertations / Theses on the topic "Cantilever loading"

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Oguibe, Chukwuma Nnamdi. "A finite element study of the elastic-plastic indentation and the response of composite structural components to impact and impulse loading." Thesis, Leeds Beckett University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320299.

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Liswell, Brian P. "Exploration of Wood DCB Specimens Using Southern Yellow Pine for Monotonic and Cyclic Loading." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9955.

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The primary direction of this thesis was towards exploring qualitative and quantitative characteristics necessary for refining and understanding the flat wood double cantilever beam (DCB) as a valid means for testing Mode I fracture energy in wood adhesive bonds. Southern yellow pine (SYP) adherends were used with epoxy and phenol formaldehyde (PF) impregnated films, providing two systems with different characteristics for investigation. An adhesive penetration analysis was performed for both the epoxy and PF bonds. The PF penetration into the SYP was shown to be relatively shallow. The epoxy penetration was shown to be deeper. Epoxy-SYP DCBs were quasi-statically tested with varying widths (10 mm, 15 mm, and 20 mm), showing decreases in scatter of critical and arrest strain energy release rates, GIc and GIa, with increases in specimen width. Quasi-static fracture testing was also performed on PF SYP-DCBs, showing much higher critical and arrest fracture energy values than the epoxy-SYP DCBs, indicating that deep adhesive penetration is not necessarily a requisite for higher Mode I fracture energy values. Grain distribution influences were computationally investigated because of the stiffness difference between latewood and earlywood growth and the grain angle along the length of the beams. The grain angle and the stiffness difference between latewood and earlywood growth caused the effective stiffness, (ExxI)eff, to vary along the length of the beam. The effective stiffness variation caused variations in the beam's ability to receive and store strain energy, complicating and confounding determination of experimental results. Cyclic loading tests were performed on PF-SYP DCB's. The cycle frequency was 3Hz, with a valley to peak load ratio of R = 0.5. Specimen softening was observed with cycling, with re-stiffening occurring with crack growth. Contrary to expectations, specimen compliance occasionally decreased with small crack extensions. A toughening mechanism was frequently observed, whereby subsequent crack lengths required more cycles to failure than the previous crack length. Monotonically extending the crack length far from the fatigued region created a fresh crack that did not show the toughened behavior. But toughening did resume with subsequent crack lengths.
Master of Science
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Giardina, Ronald J. Jr. "On The Ramberg-Osgood Stress-Strain Model And Large Deformations of Cantilever Beams." ScholarWorks@UNO, 2017. http://scholarworks.uno.edu/td/2377.

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In this thesis the Ramberg-Osgood nonlinear model for describing the behavior of many different materials is investigated. A brief overview of the model as it is currently used in the literature is undertaken and several misunderstandings and possible pitfalls in its application is pointed out, especially as it pertains to more recent approaches to finding solutions involving the model. There is an investigation of the displacement of a cantilever beam under a combined loading consisting of a distributed load across the entire length of the beam and a point load at its end and new solutions to this problem are provided with a mixture of numerical techniques, which suggest strong mathematical consistency within the model for all theoretical assumptions made. A physical experiment was undertaken and the results prove to be inaccurate when using parameters derived from tensile tests, but when back calculating parameters from the beam test the model has a 14.40% error at its extreme against the experimental data suggesting the necessity for further testing.
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Guan, Youliang. "Crack path selection and shear toughening effects due to mixed mode loading and varied surface properties in beam-like adhesively bonded joints." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/24905.

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Structural adhesives are widely used with great success, and yet occasional failures can occur, often resulting from improper bonding procedures or joint design, overload or other detrimental service situations, or in response to a variety of environmental challenges. In these situations, cracks can start within the adhesive layer or debonds can initiate near an interface. The paths taken by propagating cracks can affect the resistance to failure and the subsequent service lives of the bonded structures. The behavior of propagating cracks in adhesive joints remains of interest, including when some critical environments, complicated loading modes, or uncertainties in material/interfacial properties are involved. From a mechanics perspective, areas of current interest include understanding the growth of damage and cracks, loading rate dependency of crack propagation, and the effect of mixed mode fracture loading scenarios on crack path selection. This dissertation involves analytical, numerical, and experimental evaluations of crack propagation in several adhesive joint configurations. The main objective is an investigation of crack path selection in adhesively bonded joints, focusing on in-plane fracture behavior (mode I, mode II, and their combination) of bonded joints with uniform bonding, and those with locally weakened interfaces. When removing cured components from molds, interfacial debonds can sometimes initiate and propagate along both mold surfaces, resulting in the molded product partially bridging between the two molds and potentially being damaged or torn. Debonds from both adherends can sometimes occur in weak adhesive bonds as well, potentially altering the apparent fracture behavior. To avoid or control these multiple interfacial debonding, more understanding of these processes is required. An analytical model of 2D parallel bridging was developed and the interactions of interfacial debonds were investigated using Euler-Bernoulli beam theory. The numerical solutions to the analytical results described the propagation processes with multiple debonds, and demonstrated some common phenomena in several different joints corresponding to double cantilever beam configurations. The analytical approach and results obtained could prove useful in extensions to understanding and controlling debonding in such situations and optimization of loading scenarios. Numerical capabilities for predicting crack propagation, confirmed by experimental results, were initially evaluated for crack behavior in monolithic materials, which is also of interest in engineering design. Several test cases were devised for modified forms of monolithic compact tension specimens (CT) were developed. An asymmetric variant of the CT configuration, in which the initial crack was shifted to two thirds of the total height, was tested experimentally and numerically simulated in ABAQUS®, with good agreement. Similar studies of elongated CT specimens with different specimen lengths also revealed good agreement, using the same material properties and cohesive zone model (CZM) parameters. The critical specimen length when the crack propagation pattern abruptly switches was experimentally measured and accurately predicted, building confidence in the subsequent studies where the numerical method was applied to bonded joints. In adhesively bonded joints, crack propagation and joint failure can potentially result from or involve interactions of a growing crack with a partially weakened interface, so numerical simulations were initiated to investigate such scenarios using ABAQUS®. Two different cohesive zone models (CZMs) are applied in these simulations: cohesive elements for strong and weak interfaces, and the extended finite element method (XFEM) for cracks propagating within the adhesive layer. When the main crack approaches a locally weakened interface, interfacial damage can occur, allowing for additional interfacial compliance and inducing shear stresses within the adhesive layer that direct the growing crack toward the weak interface. The maximum traction of the interfacial CZM appears to be the controlling parameter. Fracture energy of the weakened interface is shown to be of secondary importance, though can affect the results when particularly small (e.g. 1% that of the bulk adhesive). The length of the weakened interface also has some influence on the crack path. Under globally mixed mode loadings, the competition between the loading and the weakened interface affects the shear stress distribution and thus changes the crack path. Mixed mode loading in the opposite direction of the weakened interface is able to drive the crack away from the weakened interface, suggesting potential means to avoid failure within these regions or to design joints that fail in a particular manner. In addition to the analytical and numerical studies of crack path selection in adhesively bonded joints, experimental investigations are also performed. A dual actuator load frame (DALF) is used to test beam-like bonded joints in various mode mixity angles. Constant mode mixity angle tracking, as well as other versatile loading functions, are developed in LabVIEW® for use with a new controller system. The DALF is calibrated to minimize errors when calculating the compliance of beam-like bonded joints. After the corrections, the resulting fracture energies ( ) values are considered to be more accurate in representing the energy released in the crack propagation processes. Double cantilever beam (DCB) bonded joints consisting of 6061-T6 aluminum adherends bonded with commercial epoxy adhesives (J-B Weld, or LORD 320/322) are tested on the DALF. Profiles of the values for different constant mode mixity angles, as well as for continuously increasing mode mixity angle, are plotted to illustrate the behavior of the crack in these bonded joints. Finally, crack path selection in DCB specimens with one of the bonding surfaces weakened was studied experimentally, and rate-dependency of the crack path selection was found. Several contamination schemes are attempted, involving of graphite flakes, silicone tapes, or silane treatments on the aluminum oxide interfaces. In all these cases, tests involving more rapid crack propagation resulted in interfacial failures at the weakened areas, while slower tests showed cohesive failure throughout. One possible explanation of this phenomenon is presented using the rate-dependency of the yield stress (commonly considered to be corresponding to the maximum traction) of the epoxy adhesives. These experimental observations may have some potential applications tailoring adhesive joint configurations and interface variability to achieve or avoid particular failure modes.
Ph. D.
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Gao, Xiong. "Two-dimensional exact analysis of functionally graded piezoelectric cantilevers under electric and mechanical loadings." Thesis, University of Macau, 2018. http://umaclib3.umac.mo/record=b3950671.

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Šimon, Jan. "Montovaná konstrukce ze železobetonu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226732.

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The master thesis is about a design of supporting structure of prefabricated skeleton hall. The major part of a design are an internal trasverse and longitudinal frames, which contents roof reinforce concrete truss, columns, beam and ceiling joists. All the load acting to the bearing structure is transferred to the prefabricate footing made of reinforce concrete. Other parts of the bulding are not solved in this thesis. The content of the thesis consists of an assembly drawing of parts of the skeleton and the static calculation according to the actual international standards. The output of each static calculation is drawing of a shape of part and its reinforcement.
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Němec, Martin. "Přemostění řeky a železniční trati na městském obchvatu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225460.

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This thesis deals with a bridging design of a river and ČD railway at the town bypass . The construction of the bridge is made as a running girder used for the road S 11,5/70 crossing the river Šlapanka and the railway line Šatov – Kolín, TÚ 1201. The work comprises some alternative solutions to this bridging design as well, especially alternatives of cross-section, static system and bridge building process. The static design solution made on a computer includes TDA (Time Dependant Analysis). All suggested alternatives consist of a design of prestressing and rough assessment of chosen sections. The next goal of this thesis is working-out of a project based on chosen alternative of the main bearing construction and a rough calculation of the foundation.
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ZHAO, QIU-MING, and 趙秋銘. "Investigation of Cantilever Beam Loading Measurement Based on Mach-Zehnder Interferometers." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/nxe3kd.

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碩士
國立雲林科技大學
營建工程系
106
Most of today's mainstream fiber grating load sensors are Bragg fiber grating sensors, but they are more expensive than fiber grating sensors. In this study, the loading of the cantilever beam was measured by the misplaced fusion Mach-Zander fiber interferometer, and the changes of the wavelength shifts were observed. The TI SensorTag was used to confirm that the fixed end of the cantilever beam where there are no any motions and rotations. The research method is to use an acrylic plate and a C-clip to form a cantilever beam, and a self-made Mach-Zander fiber interferometer is attached to the cantilever beam, and another C-clip is used as loads and placed in sequence. The changes in the interferometer spectrum were observed. The experimental results show that the wavelength shifts of most interferometers have an increasing or decreasing change as the loading increases, especially for the first peak of a 4-cm interferometer has a linear inverse proportional change. This will be a new choice for the future civil engineering industry to measure load conditions.
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LI, JUN-JIE, and 李俊頡. "Split Beam Method for Approximately Determining Modal Shape Function of Cantilever Beam under Multiple Loading." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/bb2x5b.

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碩士
國立臺灣大學
應用力學研究所
107
This study develops a new method, Split Beam Method(SBM). We utilize this method to solve the eigenvalue problem of Euler-Bernoulli Beam Equation more effectively. First of all, we split the Young’s Modulus corresponding to two or more subsystems with different loadings. Then we superimpose these sub-systems using linear superposition method. Following, we show how to apply SBM by two examples. In the first one, we utilize two different distribution loadings. In order to solve the difficulty caused by inhomogeneous eigenvalue problem, we made use of the inhomogeneous eigenvalue problem formula to have the solution. Then, the exact solution of deflection function would be obtained by utilizing inhomogeneous eigenvalue formula. Simultaneously, we control one of a distributed loading as constant and gradually increase the value of another distributed loading. We can find that the coefficient of the related subsystem function will increase when the second loading becomes larger and the second loading will become the dominate item in the total system. In the second one, we quote the paper about atomic force microscope, and use its model. Then, we modify a little to simulate SBM. We make Atomic Force(AFM) as a point force, and fix the oscillating force as constant. Then we find that the coefficient of the related subsystem function will increase when the second point force becomes larger and the point force will become the dominate item in the total system. From the results of these two examples, we ensure SBM is a correct and effective method. It simplify complex calculation and avoid multi- item behavior and useless calculation from Fourier superposition. In addition, SBM also provide one simple way to know which loading is the dominated one which is impossible to know from Fourier superposition.
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Basha, B. Munwar. "Optimum Design Of Retaining Structures Under Static And Seismic Loading : A Reliability Based Approach." Thesis, 2008. http://hdl.handle.net/2005/914.

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Design of retaining structures depends upon the load which is transferred from backfill soil as well as external loads and also the resisting capacity of the structure. The traditional safety factor approach of the design of retaining structures does not address the variability of soils and loads. The properties of backfill soil are inherently variable and influence the design decisions considerably. A rational procedure for the design of retaining structures needs to explicitly consider variability, as they may cause significant changes in the performance and stability assessment. Reliability based design enables identification and separation of different variabilities in loading and resistance and recommends reliability indices to ensure the margin of safety based on probability theory. Detailed studies in this area are limited and the work presented in the dissertation on the Optimum design of retaining structures under static and seismic conditions: A reliability based approach is an attempt in this direction. This thesis contains ten chapters including Chapter 1 which provides a general introduction regarding the contents of the thesis and Chapter 2 presents a detailed review of literature regarding static and seismic design of retaining structures and highlights the importance of consideration of variability in the optimum design and leads to scope of the investigation. Targeted stability is formulated as optimization problem in the framework of target reliability based design optimization (TRBDO) and presented in Chapter 3. In Chapter 4, TRBDO approach for cantilever sheet pile walls and anchored cantilever sheet pile walls penetrating sandy and clayey soils is developed. Design penetration depth and section modulus for the various anchor pulls are obtained considering the failure criteria (rotational, sliding, and flexural failure modes) as well as variability in the back fill soil properties, soil-steel pile interface friction angle, depth of the water table, total depth of embedment, yield strength of steel, section modulus of sheet pile and anchor pull. The stability of reinforced concrete gravity, cantilever and L-shaped retaining walls in static conditions is examined in the context of reliability based design optimization and results are presented in Chapter 5 considering failure modes viz. overturning, sliding, eccentricity, bearing, shear and moment failures in the base slab and stem of wall. Optimum wall proportions are proposed for different coefficients of variation of friction angle of the backfill soil and cohesion of the foundation soil corresponding to different values of component as well as lower bounds of system reliability indices. Chapter 6 presents an approach to obtain seismic passive resistance behind gravity walls using composite curved rupture surface considering limit equilibrium method of analysis with the pseudo-dynamic approach. The study is extended to obtain the rotational and sliding displacements of gravity retaining walls under passive condition when subjected to sinusoidal nature of earthquake loading. Chapter 7 focuses on the reliability based design of gravity retaining wall when subjected to passive condition during earthquakes. Reliability analysis is performed for two modes of failure namely rotation of the wall about its heel and sliding of the wall on its base are considering variabilities associated with characteristics of earthquake ground motions, geometric proportions of wall, backfill soil and foundation soil properties. The studies reported in Chapter 8 and Chapter 9 present a method to evaluate reliability for external as well as internal stability of reinforced soil structures (RSS) using reliability based design optimization in the framework of pseudo static and pseudo dynamic methods respectively. The optimum length of reinforcement needed to maintain the stability against four modes of failure (sliding, overturning, eccentricity and bearing) by taking into account the variabilities associated with the properties of reinforced backfill, retained backfill, foundation soil, tensile strength and length of the geosynthetic reinforcement by targeting various component and system reliability indices is computed. Finally, Chapter 10 contains the important conclusions, along with scope for further work in the area. It is hoped that the methodology and conclusions presented in this study will be beneficial to the geotechnical engineering community in particular and society as a whole.
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Books on the topic "Cantilever loading"

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Falcovitz, Joseph. Impulsive loading from a bare explosive charge in space. Monterey, Calif: Naval Postgraduate School, 1986.

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Book chapters on the topic "Cantilever loading"

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Wang, B., T. X. Yu, and S. R. Reid. "Hardening and softening characteristics of tubular cantilever beams under dynamic loading." In Tubular Structures VI, 225–31. London: Routledge, 2021. http://dx.doi.org/10.1201/9780203735015-34.

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Tutuş, E. B., O. Pekcan, M. Altun, and M. Türkezer. "Optimizing Reinforced Cantilever Retaining Walls Under Dynamic Loading Using Improved Flower Pollination Algorithm." In Springer Tracts in Nature-Inspired Computing, 139–69. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6104-1_7.

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Joshi, Kishan H., and Chetankumar M. Patel. "Development of Analytical Method to Determine the Deflection of Tapered Cantilever Beam with Inclined Loading Condition Using Software Simulation." In Advances in Intelligent Systems and Computing, 281–88. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-0135-2_27.

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Jadhav, Prajakta R., Girish Chand, and Amit Prashant. "Load Factors for the Estimation of Internal Forces in the Stem of Cantilever Retaining Wall with Shear Key Under Seismic Loading." In Challenges and Innovations in Geomechanics, 309–16. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-64518-2_37.

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Konai, Sanku. "Effect of Excavation Depths on Soil Pressure Acting on Embedded Cantilever Retaining Walls Under Dynamic Loadings." In Lecture Notes in Civil Engineering, 301–7. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-6456-4_32.

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Liu, Heng, Xiujin Wang, Zhengji Li, and Zhihua Zhong. "Comparative Study on Ultimate Stress Test and COMSOL Analysis of Steel Beam of Pull-Up Cantilever Scaffold." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde220907.

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Combined with the actual project, the mechanical properties of the cantilever steel pipe scaffold system are tested by model test, including the bending stress, vertical shear stress and vertical deformation displacement of the test steel beam. The stress state of the cantilever steel pipe scaffold system is analyzed, and the mechanical properties of the cantilever steel pipe scaffold system are simulated by COMSOL numerical simulation software. By comparing the results of numerical simulation and ultimate load test, the variation law of stress and vertical deformation displacement of the steel beam with the pull-up cantilever frame in the loading process is obtained, which provides necessary experimental and theoretical basis for monitoring and early warning of the pull-up cantilever scaffold.
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Kumari, Emarti. "Dynamic Analysis of High-Rise Buildings Using Simplified Numerical Method." In Vibration Monitoring and Analysis - Recent Advances [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.108556.

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This chapter emphasizes on the static and dynamic characteristics of multi-story building subjected to uniformly distributed and wind load. First-order shear deformation theory is used to formulate governing equations based on the finite element method. The multi-story building is considered as a vertical cantilever beam/plate and modeled using nine-node degenerated shell element. Fictitious membrane and shear stresses are eliminated by considering Mixed Interpolation Tonsorial Component (MITC) technique. Here, the static and dynamic characteristics of multi-story buildings have been investigated take into account as a vertical cantilever plate subjected to UDL, triangular load (wind load) and combination of both. In this chapter authors demonstrated the deformation shapes, longitudinal stress and in-plane shear stress and principle strains in various loading conditions of vertical cantilever flat panel. Moreover, investigated the dynamic characteristics of multi-story buildings considering as a vertical cantilever plates and governing equations of motion are derived by employing Hamilton’s principle. Moreover, nonlinear transient response of high-rise structures has been studied here by employing the energy and momentum conservation implicit time integration scheme. The structural analysis of tall buildings has been carried out here through commercial software ANSYS. Matrix amplitude method is employed to investigate the large-amplitude flexural vibration responses of flat panels. Also, plotted the fast Fourier transform and phase portraits for first three bending modes.
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Wang, B., T. X. Yu, and S. R. Reid. "OUT-OF-PLANE IMPULSIVE LOADING OF A RIGHT-ANGLED BENT CANTILEVER BEAM." In Advances in Engineering Plasticity and its Applications, 491–96. Elsevier, 1993. http://dx.doi.org/10.1016/b978-0-444-89991-0.50067-6.

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MELBOURNE, W. H., and J. C. K. CHEUNG. "REDUCING THE WIND LOADING ON LARGE CANTILEVERED ROOFS." In Advances in Wind Engineering, 401–10. Elsevier, 1988. http://dx.doi.org/10.1016/b978-0-444-87156-5.50051-5.

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Cheng, Hongwei, Jin'e Huang, Yanlei Wang, and Yang Zhang. "Dynamic stress responses and fatigue lives of cantilever beams subjected to high-kurtosis non-Gaussian random loadings." In Safety and Reliability of Complex Engineered Systems, 4089–99. CRC Press, 2015. http://dx.doi.org/10.1201/b19094-536.

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Conference papers on the topic "Cantilever loading"

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Kumanchik, Lee, Tony Schmitz, Jon Pratt, and John Ziegert. "Full Field Displacement Measurements of AFM Cantilevers During Loading." In ASME 2007 International Manufacturing Science and Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/msec2007-31041.

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Research collaboration between the University of Florida and National Institute of Standards and Technology is focused on the development of a reference standard for atomic force microscope (AFM) cantilever stiffness calibration. The end goal is production of flexure-based artifacts that exhibit low fabrication expense, stiffness adjustability by design, insensitivity to load application point, mechanical robustness, and good reproducibility. Experimental determination of AFM cantilever spring constants is important because the measured forces are inferred from the cantilever displacement and a linear relationship between force and displacement. As a first step in this study, we have constructed a test setup that enables us to: 1) monitor AFM cantilever behavior during loading; and 2) record the shape of the cantilever under test during contact to better understand boundary conditions. The fundamental metrology tool employed by the test setup is a three-dimensional optical profiler, or scanning white light interferometer. By locating the cantilever (and test surface) within the measurement area of the profiler, we are able to record “snapshots” of the cantilever shape under various loading conditions. Given the deflected shape, we can make comparisons between the actual shape and the profile that would be obtained by ideal (fixed-free) boundary conditions. Results for cantilevers with various stiffness values (spanning four orders of magnitude) are presented and comparisons with ideal deflected shapes are provided.
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Kennedy, Scott J., Daniel G. Cole, and Robert L. Clark. "Evaluation of a Structural Controls Model of Thermally Driven Cantilever Vibration." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-35445.

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This work compares the results of a structural controls based formulation of a micro-cantilever driven by thermal excitation to measured data and weighs the impact of various factors that can affect cantilever measurement. Understanding of the dynamics of small cantilevers such as those used in atomic force microscopy (AFM) is important for many of its applications, especially those that involve observing a cantilever’s thermally driven vibrations. This work considers factors such as the fluctuation dissipation theorem, which places thermodynamic constraints on the spectrum of the thermal driving force, errors associated with photodiode calibration, and cantilever coatings. The structural controls model, which accounts for hydrodynamic loading as a feedback process, is presented and compared to experimental data. Additionally, a discussion of the model’s use for estimating (calibrating) the cantilever stiffness is given.
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Basak, Sudipta, Arvind Raman, and Suresh V. Garimella. "Hydrodynamic Loading of Vibrating Micro-Cantilevers." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80007.

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The hydrodynamic loading on silicon microcantilevers vibrating in different fluids close to (finite gap) and away from (infinite gap) a surface is analyzed numerically. Analytical techniques available to predict the hydrodynamic loading are restricted to simple cantilever geometries in fluids of infinite extent and are inaccurate for the higher modes of vibration. In this paper a finite element model developed in ADINA 8.1 (a fluid-structure interaction software, [1]) is used to overcome the shortcomings of the analytical models. Selective modal excitation of the cantilever in a fluid yields the corresponding modal frequency and damping factor. The numerical model benchmarks favorably with previously published experimental and analytical results. Detailed numerical analyses are performed in ADINA for variable gap lengths for a rectangular microcantilever for the first and second bending modes and the first torsional mode. Different cantilever geometries are also investigated. The results expose the physics of dissipation in the surrounding fluid and are expected to be of immediate interest to the Atomic Force Microscopy (AFM) and microcantilever biosensor communities.
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Comina, Cesare, Mirko Corigliano, Sebastiano Foti, Carlo G. Lai, Renato Lancellotta, Francesco Leuzzi, Giovanni Li Destri Nicosia, et al. "Parametric study of cantilever walls subjected to seismic loading." In 2008 SEISMIC ENGINEERING CONFERENCE: Commemorating the 1908 Messina and Reggio Calabria Earthquake. AIP, 2008. http://dx.doi.org/10.1063/1.2963904.

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Gan, Y. "Micro-cantilever testing of cementitious materials under various loading conditions." In 10th International Conference on Fracture Mechanics of Concrete and Concrete Structures. IA-FraMCoS, 2019. http://dx.doi.org/10.21012/fc10.235598.

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Bedair, Sarah S., and Gary K. Fedder. "Polymer Mass Loading of CMOS/MEMS Microslot Cantilever for Gravimetric Sensing." In 2007 IEEE Sensors. IEEE, 2007. http://dx.doi.org/10.1109/icsens.2007.4388614.

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Atulasimha, Jayasimha, Yezuo Wang, and Vishnu Baba Sundaresan. "Magnetolectric Cantilever for Collocated Actuation and Sensing Applications: Experimental Study, Model and Scaling Laws." In ASME 2009 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2009. http://dx.doi.org/10.1115/smasis2009-1351.

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The magneto-electro-mechanical behavior of cantilevers is modeled with two novel applications in mind: micro-surgical ablation tools and larger actuators such as cutting tools for machining applications. By uniquely combining a energy based non-linear magnetostrictive model with Euler-Bernoulli structural model and a linear piezoelectric constitutive model, a modeling tool is developed to predict the deflections and electric responses of such cantilevers under different loading conditions and magnetic field. A reduced version of this model is validated with experimental data of a magnetostrictive cantilever in bending mode. Further a simple scaling law is developed to calculate the actuating forces that can be produced when the dimensions of the cantilever is changed.
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Hase, Aniket Anil, and Jen-Yuan (James) Chang. "Multiple Point Loading on Thin Cantilever Rectangular Plate Subjected to Pure Bending." In ASME 2021 30th Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/isps2021-65262.

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Abstract In the applications of pure bending of thin cantilever plates, unlike a beam, twisting arises with the bending unless it is accomplished to pure bending. This paper emphases the theoretical study of the integration of multiple point loadings (vertical and Inclined) over the thin plate to eliminate the twisting and predict the definite bending for the linearly elastic material. The cantilever plate is further studied through numerical simulations using finite element analysis (FEA) in ANSYS. This FEA helps to finalize the type of modelling approach that predicts large deflection’s behaviour agreeing closely with theoretical solutions. Also, in the experimental procedure, various artificial intelligence (A.I.) techniques can reduce complexity; minimize the dependence on humans, and improve design efficiency. The process presented in this paper is inspired by Euler’s classical beam theory (moment-curvature relationship) and ANN, which approximates the problem and compensates the errors.
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Parsediya, Deep Kishore. "Deflection and stresses of effective micro-cantilever beam designs under low mass loading." In 2016 International Conference on Electrical Power and Energy Systems (ICEPES). IEEE, 2016. http://dx.doi.org/10.1109/icepes.2016.7915915.

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Kennedy, Scott J., Daniel G. Cole, and Robert L. Clark. "An Automated Implementation of a Cantilever Calibration Technique for Heavy Fluid Loading Environments." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86482.

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In a recently submitted paper, a technique is presented for the force calibration of atomic force microscopy (AFM) cantilevers under heavy fluid loading conditions, such as those commonly found in liquid environments. A Matlab program had been made available that automates this technique. In this paper, the analysis performed by this program is explained with specific attention to the details that do not appear in the original description of the calibration technique, but arise in the automated implementation.
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Reports on the topic "Cantilever loading"

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EXPERIMENTAL STUDY AND NUMERICAL ANALYSIS ON SEISMIC BEHAVIOR OF ASSEMBLED BEAM-COLUMN JOINTS WITH CSHAPED CANTILEVER SECTION (ID NUMBER: 197). The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.197.

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"A kind of assembled steel beam-column joint with C-shaped cantilever section was proposed. The influences of the lengths of cantilever sections and cover plates on seismic performance of the joints were discussed through low-cycle reciprocating loading tests and numerical simulations. Then the sensitivity analysis of key parameters such as thickness and width of flange plate ,bolt number and cover plate’s length were carried out. The results show that the joint consumed energy through warping deformations of end plate and the friction slippages between flange of beam, C-shaped cantilever section and cover plate. By reasonably increasing the lengths of C-shaped cantilevers section and cover plates, it can ensure that the joints have high bearing capacities, while significantly improving energy dissipation capacities of the joints. Parameter analysis showed that increasing thickness of the flange plate can effectively improve the stress concentration at root of the cantilever section. Reducing width of flange plate has a great impact on bearing capacity and initial stiffness of the joint with the maximum drop amplitude of 13.1% and 18.9%, respectively."
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