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Academic literature on the topic 'Dissimilar adherends'

Author: Grafiati
Published: 6 September 2023

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Journal articles on the topic "Dissimilar adherends"

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Athirah, Nur, A. R. Abdullah, M. Afendi, M. S. Abdul Majid, Ruslizam Daud, and Haftirman Idrus. "Numerical Stress Analysis of Epoxy Adhesively Bonded Dissimilar Joint." Key Engineering Materials 594-595 (December 2013): 930–34. http://dx.doi.org/10.4028/www.scientific.net/kem.594-595.930.

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A two-dimensional adhesively bonded dissimilar single lap joint model was analyzed under tension. An explicit closed-form solution was formulated by using MATLAB tool for analysis of shear and peel stresses distribution along the bondline under effect of variation of overlap length, adherend thickness ratio and adherend Youngs modulus ratio. The solution was formulated based on analysis of Bo Zhao et al. [2]. The bending moment at the edge joint of the Bo Zhaos solution was replaced by the bending moment at the edge joint that have been proposed by X. Zhao et al. [5] to compare the accuracy of solutions. The least stress intensities in dissimilar joint could be achieved with a suitable ratio of thickness and Youngs modulus of adherends.
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He, Boling, and Dongyun Ge. "Dynamic strength of adhesively bonded composite joints with similar and dissimilar assembled adherends." Journal of Reinforced Plastics and Composites 36, no. 23 (August 7, 2017): 1683–92. http://dx.doi.org/10.1177/0731684417724891.

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The effect of similar versus dissimilar assembled adherends, on the dynamic strength of single-lap, adhesively bonded composite joints is investigated. The assembled adherend materials include titanium, aluminum and composite. To this end, split Hopkins pressure bar is used to assess the strength of the joints at high loading rates. The tests show that the dynamic strength of the joints is influenced by the assembled adherend material stiffness, and the highest strength is achieved when using high stiffness adherend materials. Numerical results conclude that the increase in the stiffness of the assembled adherend material alleviates the stress concentration and promotes a more uniform distribution of stresses in the adhesive. The results of this study indicate that the selection of assembled adherend material should be accounted for while designing adhesively bonded composite joints.
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Truong Viet, Hoai, Tran Duc Hoan, Vu Minh Vinh, and Chu Van Huy. "Failure load prediction of single-lap bonded joints by damage zone method." Journal of Military Science and Technology, no. 79 (May 19, 2022): 52–59. http://dx.doi.org/10.54939/1859-1043.j.mst.79.2022.52-59.

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The failure load of single-lap bonded joints with dissimilar adherend materials was predicted using the damage zone method. A number of six joint configurations with different thicknesses of the adherends were considered. Three-dimensional finite element models were built to represent the behavior of the bonded joints, and the damage zone method was applied to predict the failure loads of the joints. The predictions of failure loads of the joints were achieved, showing a good agreement between the numerical and the corresponding experimental results.
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Wu, Z. J., A. Romeijn, and J. Wardenier. "Stress expressions of single-lap adhesive joints of dissimilar adherends." Composite Structures 38, no. 1-4 (May 1997): 273–80. http://dx.doi.org/10.1016/s0263-8223(97)00062-7.

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Afendi, Mohd, Tokuo Teramoto, and Hairul Bin Bakri. "Strength prediction of epoxy adhesively bonded scarf joints of dissimilar adherends." International Journal of Adhesion and Adhesives 31, no. 6 (September 2011): 402–11. http://dx.doi.org/10.1016/j.ijadhadh.2011.03.001.

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Sankar, H. Ravi, M. Adamvalli, Prasad P. Kulkarni, and Venkitanarayanan Parameswaran. "Dynamic strength of single lap joints with similar and dissimilar adherends." International Journal of Adhesion and Adhesives 56 (January 2015): 46–52. http://dx.doi.org/10.1016/j.ijadhadh.2014.07.014.

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MIYAZAKI, Tatsujiro, and Hibiki FUKUDA. "Intensity of singular stress field for bonded body with dissimilar adherends." Proceedings of the Materials and Mechanics Conference 2022 (2022): OS1408. http://dx.doi.org/10.1299/jsmemm.2022.os1408.

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Afendi, Mohd, Tokuo Teramoto, and Akihiro Matsuda. "Strength and Fracture Characteristics of SUS304/AL-Alloy Scarf Adhesive Joint with Various Adhesive Thicknesses." Key Engineering Materials 462-463 (January 2011): 768–73. http://dx.doi.org/10.4028/www.scientific.net/kem.462-463.768.

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In this study, strength and fracture toughness of epoxy adhesively bonded scarf joints of dissimilar adherends, namely SUS304 stainless steel and YH75 aluminium alloy are examined on several scarf angles and various bond thicknesses under uniaxial tensile loading. Scarf angles, θ = 45°, 60° and 75° are employed. The bond thickness, t between dissimilar metals is controlled to be ranged between 0.1 mm to 1.2 mm. Finite element (FE) analysis is also executed to investigate the stress distributions in the scarf joints by ANSYS 11 code. From analytical solutions, stress singularity exists most pronouncedly at the steel/adhesive interface corner of joints having 45° to 75° scarf angle. This is not only in agreement with the FE analyses results but also confirmed by fracture surfaces observation wherein the fracture has always been initiated at this point. The strength of scarf joints increases as the bond thickness decreases. Interface corner toughness, Hc approach can be applied when predicting the failure stress of scarf joints. Besides, for scarf joints with an interfacial crack, the fracture toughness, Jc values are independent of bond thickness and less sensitive to adherends. Moreover, Jc increases as mode mixity increases.
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Bagiatis, V., G. W. Critchlow, D. Price, S. Wang, C. M. Harvey, and B. Yuan. "Thermally induced strain in joints with dissimilar adherends bonded with a flexible adhesive." International Journal of Adhesion and Adhesives 107 (June 2021): 102853. http://dx.doi.org/10.1016/j.ijadhadh.2021.102853.

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de Morais, A. B. "A beam model for the fracture of adhesive joints with dissimilar metal adherends." International Journal of Adhesion and Adhesives 114 (April 2022): 103112. http://dx.doi.org/10.1016/j.ijadhadh.2022.103112.

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Books on the topic "Dissimilar adherends"

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Forstein, Marshall, Farah Ahmad-Stout, and Gaddy Noy. Young Adulthood and Serodiscordant Couples. Edited by Mary Ann Cohen, Jack M. Gorman, Jeffrey M. Jacobson, Paul Volberding, and Scott Letendre. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199392742.003.0034.

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Advances in HIV medical care and antiretroviral therapy transformed AIDS from a rapidly devastating fatal illness into a chronic illness for persons with access to care, leading to vast changes in the health of individuals, couples, their children, extended families, and social networks. In addition, adherence to antiretroviral therapy and viral suppression have reduced the likelihood of transmission of HIV, and the use of pre-exposure prophylaxis (PrEP) in an HIV-negative partner offers an additional option to prevent seroconversion. Significant biopsychosocial challenges remain, however, for couples who are dissimilar (serodiscordant) in HIV serological status and young adults with HIV. Many young adults and serodiscordant couples who are engaged in care and virally suppressed need support as they plan to have children or re-enter careers and social networks. There are few studies of couples with similar (seroconcordant) or serodiscordant HIV serological status. This chapter focuses on the impact of HIV on serodiscordant couples in which only one member is infected. After reviewing some of the literature, clinical issues that emerge in evaluating and treating couples are presented.
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Book chapters on the topic "Dissimilar adherends"

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Jairaja, R., and G. Narayana Naik. "Fabrication of Single and Dual Adhesive Bonded Lap Joints Between Dissimilar Composite Adherends." In Lecture Notes in Mechanical Engineering, 185–95. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5689-0_17.

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Van Blitterswyk, Jared, David Backman, Jeremy Laliberté, and Richard Cole. "Application of Digital Image Correlation to the Thick Adherend Shear Test." In Joining Technologies for Composites and Dissimilar Materials, Volume 10, 81–90. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42426-2_9.

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Urbina, Antonio E. "“Don’t disrespect me, I’m Ms., not Mr.”." In HIV, 241–52. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780190088316.003.0026.

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Care of the transgender patient living with HIV is not too dissimilar from the care of any patient living with HIV. Clinicians should be comfortable asking patients about their gender identity and sexual orientation. Once preferred gender has been identified, providers should be mindful of using the patient’s preferred name and pronouns even if not incorporated into the patient’s medical record. Obtaining an organ inventory is an important element to the clinical examination as patients may use terms other than the anatomical names of body parts to refer to their bodies. All transgender patients living with HIV should be offered antiretroviral therapy (ART), with the goal of achieving an undetectable viral load. HIV and ART are not contraindications to gender-affirming hormone therapy (GAHT). Many of the currently approved ART regimens do not interact with GAHT and can be safely coadministered. Importantly, continuation of GAHT has been associated with improved adherence to ART. Last, immunizations against infectious diseases are an important component of care for transgender individuals living with HIV.
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Conference papers on the topic "Dissimilar adherends"

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Sawa, Toshiyuki, and Kohei Ichikawa. "A Stress Analysis and Strength Estimation of Stepped Lap Adhesive Joints Under Static and Impact Tensile Loadings." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80804.

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The stress variations and stress distributions in stepped-lap adhesive joints of dissimilar adherends under impact tensile loadings were analyzed in elastic range using three-dimensional finite element method. The impact loadings were applied to the lower adherend by dropping a weight. The stress distributions in stepped-lap adhesive joints of dissimilar adherends under static tensile loadings were also analyzed using FEM. The effects of Young’s modulus of the adherends, the adhesive thickness and the number of butted steps of adherents ware examined under both impact and static loadings. As the results, The maximum value of stress σ1 increased as Young’s modulus of the adherends increased for the impact loadings. The maximum value of stress σ1 increased as the numbers of steps in the adherends increased for the static loadings. In addition, the experiments to measure the strain response of joints subjected to impact tensile loadings were carried out using strain gauges. A fairly good agreement was found between the numerical and the measured results concerning the strain responses.
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Sawa, Toshiyuki, Katsuyuki Nakano, and Hiroshi To Ratani. "Two-Dimensional Stress Analysis of Single-Lap Joints of Dissimilar Adherends Subjected to External Bending Moments." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-0854.

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Abstract The stress distributions of single-lap adhesive joints of dissimilar adherends subjected to external bending moments are analyzed as a three-body contact problem by using a two-dimensional theory of elasticity (plain strain). In the analysis, dissimilar adherends and an adhesive are replaced by finite strips, respectively. In the numerical calculations, the effects of Young’s modulus ratio, adherend thickness ratio and adherend length ratio on the stress distribution at the interface are examined. As the results, it is seen that the stress singularity occurs at the edges of the interfaces and it increases at the edge of the interface of adherend with greater Young’s modulus It is noticed that the singular stress decreases at the edge of the interface of adherend with larger adherend thickness. Strain measurements on adherends were conducted. A fairly good agreement is seen between the analytical and the measured results.
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Sawa, Toshiyuki, and Atsushi Karami. "Stress Analysis and Strength of Scarf Adhesive Joints of Dissimilar Adherends Subjected to Static Bending Moments." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41597.

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The stress distributions in scarf adhesive joints of dissimilar adherends under static bending moments are analyzed using three-dimensional finite-element calculations. The code employed is ANSYS. In FEM calculations, the effects of Young’s modulus of the adhesive, adhesive thickness, scarf angle of the adherend on the stress distributions at the adhesive interface are examined. As the results, it is found that the maximum value of the maximum principal stress occurs at the edge of the scarf adhesive interface. It is also observed that the maximum value of the stress is minimum, when the scarf angle is 60 degree. In addition, the joint strength is estimated using the obtained stress distribution. For the verification of the FEM calculations, the experiments were carried out to measure the strengths and the strains in the joints under static bending moments using strain gauges. Fairly good agreements are observed between the numerical and the measured results concerning the joint strength and the strains.
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Shahin, Khaled, and Farid Taheri. "A Simple and Practical Solution for Characterization of Adhesively Bonded Joints in Dissimilar Materials." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-44115.

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Fiber-reinforced polymer (FRP) composites are increasingly used in structural systems, replacing structural steel and aluminum. It is now well established that adhesive bonding is the most efficient mean of joining composites. Unfortunately, analytical models available in the literature offer design equations mainly applicable to balanced adhesive joints; where the two adherends are identical. In many practical applications, however, FRP composites are used (joined) in conjunction with other materials. This paper presents a simplified model that accurately predicts the behaviour of adhesive joints between different adherends. In this model, exponentially small terms are removed from the analytical solution, greatly simplifying the solution. The resulting design equations provide an accurate method of the design and analyzing of adhesive joints. The model applies to single-lap, single-strap and stiffener-plate joints, where shear and peel stresses are present. Furthermore, the model is easily extended to determine the energy release rate in adhesive joints. Results from the analytical model closely agree with finite element results, which are obtained in a fraction of the time and effort required for a non-linear finite element analysis.
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Yuceoglu, U., O. Gu¨vendik, and V. O¨zerciyes. "Free Transverse Vibrations of Orthotropic Composite Mindlin Plates or Panels With a Non-Centrally Bonded Symmetric Lap Joint (or Symmetric Doubler Joint)." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14013.

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The problem of the "Free Transverse Vibrations of Orthotropic Composite Mindlin Plates or Panels with a Non-Centrally Bonded Symmetric Lap Joint (or Symmetric Doubler Joint)" is theoretically analyzed and solved with some numerical results. The "Bonded Joint" system is composed of two dissimilar, orthotropic plate "adherends" non-centrally bonded and connected by a dissimilar, orthotropic "doubler" plate through a very thin and elastic adhesive layer. The "adherends" and the single "doubler" are taken into account as the "Mindlin Plates" with the transverse shear deformations and the transverse and the rotary moments of inertia. The adhesive layer is considered as a linearly elastic continuum with the transverse normal and shear stresses. The damping effects are neglected. The dynamic equations of the plate "adherends", the "doubler" plate and the adhesive layer in combination with the stress resultant-displacement expressions, after some algebraic manipulations, are finally reduced to a set of the "Governing System of the First Order Ordinary Differential Equations" in matrix form in terms of the "state vectors" of the problem. The aforementioned set of the "Governing Equations" is integrated by means of the "Modified Transfer Matrix Method (MTMM) (with Interpolation Polynomials)". Several mode shapes with their corresponding natural frequencies are presented for the "hard" and the "soft" adhesive cases. It was found that there are significant differences in mode shapes and natural frequencies corresponding to the "hard" and the "soft" adhesive cases. Additionally, some parametric studies such as the effects of the "Bonded Joint Length Ratio" and the "Bonded Joint Position Ratio" on the natural frequencies are included in this first study.
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Yuceoglu, U., O. Gu¨vendik, and V. O¨zerciyes. "Free Bending Vibrations of a Centrally Bonded Symmetric Double Lap Joint (or Symmetric Double Doubler Joint) With a Gap in Mindlin Plates or Panels." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41073.

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In this present study, the “Free Bending Vibrations of a Centrally Bonded Symmetric Double Lap Joint (or Symmetric Double Doubler Joint) with a Gap in Mindlin Plates or Panels” are theoretically analyzed and are numerically solved in some detail. The “plate adherends” and the upper and lower “doubler plates” of the “Bonded Joint” system are considered as dissimilar, orthotropic “Mindlin Plates” joined through the dissimilar upper and lower very thin adhesive layers. There is a symmetrically and centrally located “Gap” between the “plate adherends” of the joint system. In the “adherends” and the “doublers” of the “Bonded Joint” assembly, the transverse shear deformations and the transverse and rotary moments of inertia are included in the analysis. The relatively very thin adhesive layers are assumed to be linearly elastic continua with transverse normal and shear stresses. The “damping effects” in the entire “Bonded Joint” system are neglected. The sets of the dynamic “Mindlin Plate” equations of the “plate adherends”, the “double doubler plates” and the thin adhesive layers are combined together with the orthotropic stress resultant-displacement expressions in a “special form”. This system of equations, after some further manipulations, is eventually reduced to a set of the “Governing System of the First Order Ordinary Differential Equations” in terms of the “state vectors” of the problem. Hence, the final set of the aforementioned “Governing Systems of Equations” together with the “Continuity Conditions” and the “Boundary conditions” facilitate the present solution procedure. This is the “Modified Transfer Matrix Method (MTMM) (with Interpolation Polynomials). The present theoretical formulation and the method of solution are applied to a typical “Bonded Symmetric Double Lap Joint (or Symmetric Double Doubler Joint) with a Gap”. The effects of the relatively stiff (or “hard”) and the relatively flexible (or “soft”) adhesive properties, on the natural frequencies and mode shapes are considered in detail. The very interesting mode shapes with their dimensionless natural frequencies are presented for various sets of boundary conditions. Also, several parametric studies of the dimensionless natural frequencies of the entire system are graphically presented. From the numerical results obtained, some important conclusions are drawn for the “Bonded Joint System” studied here.
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Sawa, Toshiyuki, and Takahiro Oomori. "Finite Element Stress Response Analysis of Stepped-Lap Adhesive Joints of Dissimilar Adherends Under Impact Tensile Loadings." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASME, 2003. http://dx.doi.org/10.1115/detc2003/rsafp-48692.

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Chiu, Jack, Feridun Delale, and Niell Elvin. "Impact Response of an Adhesively Bonded Lap Joint." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-36252.

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Failure of adhesively bonded joints is often dictated by the stresses developed within the adhesive layer, which are difficult to measure experimentally. While solutions, including closed-form solutions, exist for static cases, even numerical solutions are not easily obtainable for dynamic cases where the bonded layers are dissimilar in material and/or geometry. In this paper, we present a method to determine the dynamic stresses in the adhesive and adherends of adhesively bonded lap joints subjected to arbitrary dynamic end loads. In the formulation the adherends are treated as orthotropic plates while the adhesive layer is approximated as a tension-shear spring. The equations of motion result in a complex system of fourteen (14) partial differential equations in time and space. The equations are solved numerically using the Finite Difference Method (FDM). First, special cases where known solutions exist are solved to verify both the formulation and the numerical approach. Next, the problem of a lap joint subject to a remote, transmitted impact is considered and results are obtained. The planar distribution of stresses within the adhesive layer shows areas of dynamic stress concentration which may act as crack nucleation sites.
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Yuceoglu, U., and O. Gu¨vendik. "Effects of Rotation of Material Axes on Free Flexural Vibrations of Centrally Bonded Symmetric Double Doubler Joint in Composite Mindlin Plates or Panels." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62502.

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The present study investigates the serious effects of rotation of material axes on the free dynamic response of composite plates or panels with “Bonded Double Doubler Joint Systems”. The “Plate Adherends” and the “Upper and Lower Doubler Plates” are connected through the relatively very thin adhesive layers. The “Bonded Double Doubler Joint System” is considered in terms of the “System.1” and the “System.2”. In the “System.1”, the material directions of “Plate Adherends” are rotated 90° (about z-axis) while there is no change in the material axes of the “Double Doubler Plates”. In the “System.2”, the material directions of the “Double Doubler Plates” are rotated 90° (about z-axis), while there is no change in the material axes of the “Plate Adherends”. All plate elemnts of the “System.1” and the “System.2” are assumed to be dissimilar “Orthotropic Mindlin Plates” with the transverse shear deformations and the transverse (or bending) moments of inertia and the rotary moments of inertia. The upper and lower adhesive layers are linearly elastic continua with dissimilar material properties and with unequal thicknesses. The damping effects in all plate elements and also in adhesive layers are neglected. The entire theoretical analysis for both “Systems.1 and 2” is based on the “Orthotropic Mindlin Plate Theory”. For this purpose, the dynamic equations of the left and the right “Plate adherends” and of the “Upper and Lower Doubler Plates” and the equations of the adhesive layers are combined to-gather with the stress resultant – displacement expressions of the plate elements. Then, after some algebric manipulations and combinations, and with the “Classical Levy’s Solutions” the original dynamic equations are finally reduced into the two new sets of the “Governing System of the First Order O.D.E’s” in compact matrix forms with the “state vectors” for the “System.1” and “System.2”, respectively. In this way, the original “Initial and Boundary Value Problem” (or the free vibrations problem) is converted to the “Multi–Point Boundary Value Problem” of Mechanics and Physiscs. In the case of both “Systems.1 and 2”, these results facilitate the direct application of the present method of solution that is the “Modified Transfer Matrix Method (MTMM) (with Interpolation Polynomials)”. The aforementioned “Governing Equations” for both “Systems.1 and 2” are numerically integreted by making use of the “ (MTMM) (with Interpolation Polynomials)”. Thus, the natural frequencies and the mode shapes of the “Systems.1” and the “System.2” are graphically presented for the same “Support Conditions”. The comparison of the numerical results corresponding to each “System.1” and “System.2” for the same “Support Conditions” is considered leading to some very important conclusions.
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Sawa, Toshiyuki, Yoshihito Suzuki, and Shoichi Kido. "Stress Analysis of Butt Adhesive Joints of Dissimilar Hollow Cylinders Under Impact Tensile Loadings." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33455.

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The stress variations in butt adhesive joints of dissimilar hollow cylinders under impact tensile loadings are analyzed in elastic and elasto-plastic deformation using a finite element method. The FEM code employed is DYNA3D. The effect of Young’s modulus of the adhesive, adhesive thickness and the inside diameter of the hollow cylinders and Young’s modulus ratio between dissimilar adherends on the stress variations at the interfaces are examined. In addition, a process in rupture at the interface of the joint is analyzed. The stress distributions in the joints under static loadings are also analyzed by an FEM. The characteristics of the stress variations in the joints under impact loadings are compared with those in the joints under the static loadings. Also, the joint strenths under impact loadings are estimated. As the results, it is found that the maximum value of the maximum principal stress σl occurs at the outside of the interface. It is also found that the maximum principal stress σl at the interface decreases as the inside diameter of the hollow cylinders increases. The characteristics of the joints subjected to the impact loadings are found to be opposite to those subjected to the static loadings. In addition, the experiments were carried out to measure the strain response of the butt adhesive joints under impact tensile loads using strain gauges. Furthermore, the joint strengths under impact loadings were measured. Fairly good agreements are observed between the numerical and the measured results.
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