Relevant bibliographies by topics / Plastic bearability of plates

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Plastic bearability of plates'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Plastic bearability of plates"

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Mitsuhashi, Masato, Cylia Keller, and Tatsuo Akitaya. "Gene manipulation on plastic plates." Nature 357, no. 6378 (June 1992): 519–20. http://dx.doi.org/10.1038/357519a0.

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Aboudi, J., and M. Paley. "Plastic buckling of ARALL plates." Composite Structures 22, no. 4 (January 1992): 217–21. http://dx.doi.org/10.1016/0263-8223(92)90058-k.

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Chen, D. H., and S. Ozaki. "Axial plastic collapse behavior of plates." Thin-Walled Structures 48, no. 2 (February 2010): 77–88. http://dx.doi.org/10.1016/j.tws.2009.09.006.

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Wang, C. M., Y. Xiang, and J. Chakrabarty. "Elastic/plastic buckling of thick plates." International Journal of Solids and Structures 38, no. 48-49 (November 2001): 8617–40. http://dx.doi.org/10.1016/s0020-7683(01)00144-5.

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Bhat, Shankaranarayana U., and Paul C. Xirouchakis. "Rigid‐Plastic Analysis of Floating Plates." Journal of Engineering Mechanics 111, no. 6 (June 1985): 815–31. http://dx.doi.org/10.1061/(asce)0733-9399(1985)111:6(815).

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The, Vu Van. "Rigid plastic plates at large deformations." Vietnam Journal of Mechanics 7, no. 1 (March 31, 1985): 20–23. http://dx.doi.org/10.15625/0866-7136/10381.

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By being statically loaded plastic plates can support loads exceeding the bending collapse pressure, the behaviour of perfectly rigid plastic plates beyond the yield load depends on changes in geometry to the plastic flow. Therefore in post yield behaviour the deflection can not be considered small in comparison with the plate thickness. In this paper we employ the equations of plates at moderately large deflections and the approximate live behaviour of plates introduced in/2,3/ by dividing plates into a number of rigid regions which have been separated by line hinges situated at locations where their discontinue ties in w,i occur, an estimative method of the toad - deflection relationship of arbitrarily shaped plates having arbitrarily boundary conditions is developed. This method is directly extended to anisotropic and reinforced concrete plates.
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The, Vu Van. "Rigid plastic plates at large deformations." Vietnam Journal of Mechanics 7, no. 3 (September 30, 1985): 18–23. http://dx.doi.org/10.15625/0866-7136/10391.

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The method developed in [8] is applied herein in order to obtain estimations of the load-deflection relationship of the hinge supported rectangular plates acted on by a uniformly distributed loading. The plate is made from rigid perfectly plastic material which yields according to the square yield condition and maximum normal yield condition. the plastic hinge line patterns shown in figs. 1. 2. are chosen. The obtained results are presented in figs. 4, 5, 6, 8.
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Lellep, Jaan, and Boriss Vlassov. "Optimization of Stepped Elastic Plastic Plates." Advanced Materials Research 742 (August 2013): 209–14. http://dx.doi.org/10.4028/www.scientific.net/amr.742.209.

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A method of analysis and optimization of stepped plates made of elastic plastic materials is developed. The stress-strain of the plate is defined for the initial elastic and subsequent elastic plastic stages of deformation. Necessary optimality conditions are derived with the aid of variational methods of the theory of optimal control. This results in a differential-algebraic system of equations. The latter is solved numerically. The effectivity of the design established is assessed in the cases of one-and multi-stepped plates assuming the material obeys the Tsai-Wu or von Mises yield condition.
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Yang, W. H. "A duality theorem for plastic plates." Acta Mechanica 69, no. 1-4 (December 1987): 177–93. http://dx.doi.org/10.1007/bf01175720.

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Anastasiadis, John, and Paul C. Xirouchakis. "Rigid-Plastic Response of Floating Plates." Journal of Ship Research 32, no. 03 (September 1, 1988): 168–76. http://dx.doi.org/10.5957/jsr.1988.32.3.168.

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This paper presents the exact formulation and solution for the static flexural response of a rigid perfectly plastic freely floating plate subjected to lateral axisymmetric loading. The Tresca yield condition is adopted with the associated flow rule. The plate response is divided into three phases: Initially the plate moves downward into the foundation as a rigid body (Phase I). Subsequently the plate deforms in a conical mode in addition to the rigid body motion (Phase II). At a certain value of the load a hinge-circle forms which may move as the pressure increases further (Phase III). The nature of the solution during the third phase depends upon the parameter α = a/R (ratio of radius of loaded area to the plate radius). When α = αs≅ 0.46 the hinge-circle remains stationary under increasing load. For α < αs the hinge-circle shrinks, whereas for α > αs the hinge-circle expands with increasing pressure. The application of the present results to the problem of laterally loaded floating ice plates is discussed.
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Dissertations / Theses on the topic "Plastic bearability of plates"

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Rozsypalová, Veronika. "Výpočet plastické únosnosti desek." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226457.

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The subject of this thesis is analysis of the plastic bearability of plates. The first part is dedicated to a description of pertinent theories. It is primarily a theory of material nonlinearity and plasticity, including a description of plasticity models, which are commonly used in engineering analysis. Next is the hinted theory of geometric nonlinearity and discusses the key principles of limit plastic bearability of plates. This thesis includes ultimate strength calculations of plates of selected shapes, their solution by both, a manual calculation and using computational software. The obtained values are subsequently evaluated. The appendices contain the procedures for modelling in the computational programs RFEM and ANSYS.
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Jowhari, Moghadam Shirin. "Plastic buckling of columns and plates." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/29865.

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The theory of buckling strength of compression members in the plastic range has been extensively studied, and numerical methods already exist which deal with such behaviour. However, there is a significant research interest in developing analytical models for the plastic buckling, largely driven by the need for simplified mechanics based design tools, but also by the desire for enhanced understanding of this complex phenomenon. A thorough investigation into the inelastic buckling of columns and plates reveals the existence of two well-known inconsistencies recognised as the 'Column Paradox' and the 'Plate Plastic Buckling Paradox'. In the current research, addressing the conceptual issues related to the plastic buckling of columns and plates, including the two associated paradoxes, has been achieved by means of development and application of analytical models that are verified against nonlinear finite element analysis. These models are based on sound principles of structural mechanics and are intended to illustrate the mechanics of the plastic buckling response of stocky columns/plates by means of a simplified analytical approach, from the point of buckling initiation and considering the post-buckling response. In these models, the Rotational Spring Analogy is used for formulating the geometric stiffness matrix, whereas the material stiffness matrix is obtained with due consideration for the spread of material plasticity. It is shown that the buckling of stocky perfect columns starts at the Engesser load while the von Karman upper limit is typically not realised due to tensile yielding at the outer fibre of the column cross-section. Furthermore, it is established that beyond a threshold level of imperfection, as evaluated directly from the developed model, the plastic post-buckling response of columns is barely affected by a further increase in the out-of-straightness. Besides identifying previous misconceptions in the research literature, the proposed analytical models for the plastic buckling of plates have proven to offer valuable insight into factors that influence the plastic buckling of stocky plates, and hence succeeded in resolving the long-standing paradox. It is the major contention of this thesis, verified through extensive studies, that the 'Plate Plastic Buckling Paradox' is resolved with the correct application of plasticity theory, considering not only the influence of initial imperfections but also the interaction between flexural and planar actions.
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CHAKRABARTI, SEKHAR KUMAR. "INELASTIC BUCKLING OF GUSSET PLATES." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184188.

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The strength and behavior of gusset plates in buckling is evaluated herein based on data from the experimental investigations conducted by other researchers and the analytical work presented herein. A set of design guidelines has been recommended through the review of the current practice. Representative single and double brace gusset plates normally adopted for connections with compressive bracing/diagonal members in braced frames and trusses, were modeled and analyzed using linear and nonlinear finite element methods to determine the buckling loads. The buckling analysis data along with the test data indicated the occurrence of inelastic buckling of the gusset plates. Current design practice and a set of formulas for determination of gusset plate thickness have been reviewed. A set of guidelines has been recommended for the design and evaluating gusset plate buckling loads.
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An, Wei 1963. "Strengthening of concrete beams with composite plastic plates." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/277246.

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This study investigates the feasibility of strengthening reinforced concrete beams with epoxy-bonded Glass-Fiber-Reinforced-Plastic (GFRP) plates. The composite plate is epoxy-bonded to the tension flange of the beam to increase its stiffness and strength. Seven rectangular and one T-beam, retrofitted with composite plates, were tested to failure under symmetrical 4-point bending. The load versus deflection and the load versus strain in the composite plate, steel rebar and the extreme compression fiber of concrete were measured and plotted for the midspan section throughout the entire range of loading up to failure. Analytical models based on the equilibrium of forces and compatibility of deformations were developed to predict the stresses and deformations of the beam in the linear and nonlinear regions. The predicted and measured results correlated well. The analytical models were used in a parametric study to investigate the effects of design variables such as, plate area, plate strength and stiffness, reinforcement ratio, etc., on the moment-curvature relationships of typical rectangular and T cross sections.
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Bahous, André. "Plastic buckling of circular plates on elastic foundations." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123016.

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The thesis deals with the plastic bifurcation buckling of a full circular plate partially or fully bonded to an elastic foundation, and subjected to a uniform radial pressure at the periphery. The prebuckling state of stress in the plate is therefore a constant equibiaxial stress. Under this stress, the plate material undergoes strain-hardening, obeying an isotropically expanding J2 (von Mises) yield surface. The incremental constitutive relations, needed for the bifurcation analysis, are written in a way so as to incorporate behaviours according to both the J2 deformation and J2 -incremental theories of plasticity, and also to include the elastic theory. The governing equation and boundary conditions, suitable for non-axisymmetric or axisymmetric buckling, are derived using the principle of virtual work and Shanley's concept of bifurcation under increasing load. Exact analysis solves the fourth order partial differential equation, and obtains the buckling stresses for plates fixed and simply supported at the periphery, as a function of the radius to thickness ratio, and for various values of the foundation modulus.Four cases of foundation support are considered: (1) no foundation, (2) full foundation, (3) partial inside foundation for half the plate radius, and (4) partial outside foundation from half to the full radius. This is done for fixed as well as simply supported plates. Buckling stresses and the associated mode shapes, whether axisymmetric or nonaxisymmetric, are obtained for the investigated cases.Numerical results are presented for the bifurcation stress of Aluminum 24S-T3 plates and foam like foundation materials. The results show that the effect of foundation is less significant in the plastic range than in the elastic range. As expected, the buckling stresses for the incremental theory are always higher than the results for the deformation theory. For fixed plates the maximum difference is around 10% at the high end of the validity of the stress-strain curve. But, surprisingly for the simply supported plates, the results from the incremental theory are higher by less than 1%. This means, that for circular simply supported plates, the well-known plastic buckling paradox almost disappears, even in the presence of a foundation.
Cette thèse traite du voilement plastique par bifurcation d'une plate circulaire qui est partiellement ou complètement liée à une fondation élastique, et qui est soumise à une pression radiale uniforme sur sa périphérie. Avant le voilement, la plaque se trouve dans un état de contraintes équibiaxiales constantes. Sous ces contraintes, le matériau de la plaque subit un écrouissage suivant une surface de plastification en expansion isotrope J2 (von Mises). Les lois constitutives incrémentales, requises pour l'analyse de bifurcation, sont écrites de façon à incorporer le comportement selon la théorie de déformation J2, les théories incrémentales de la plasticité J2 et la théorie élastique. L'équation régissant le comportement de la plaque et les conditions frontières, adaptés au voilement axisymétrique et non-axisymétrique, sont dérivés selon le principe du travail virtuel et le principe de bifurcation sous augmentation de charge de Shanley. L'analyse exacte de l'équation différentielle du 4e degré permet d'obtenir, en fonction du ratio rayon/épaisseur des plaques et du module de fondation, les contraintes de voilement pour les plaques encastrées et simplement supportées en leur périphérie.Quatre configurations de fondations sont considérées : (1) aucune fondation présente, (2) une fondation présente partout, (3) une fondation partielle présente uniquement à l'intérieur de la moitié du rayon de la plaque et (4) une fondation partielle présente à partir de la moitié du rayon jusqu'au bord de la plaque. Ces configurations sont appliquées pour des plaques simplement supportées et encastrées en périphérie. Les contraintes de voilement ainsi que les modes de déformations associés, qu'ils soient axisymétrique ou non-axisymétrique, sont obtenus pour chaque cas.L'analyse numérique présente des résultats de contraintes de bifurcation pour des plaques d'aluminium 24S-T3 et des matériaux de fondation peu rigides de type mousse synthétique. Il en ressort que l'effet de la fondation sur les contraintes de voilement est moins important dans le domaine plastique que dans le domaine élastique. Tel que prévu, les contraintes de voilement découlant de la théorie incrémentale de la plasticité J2 sont toujours supérieurs que celles basées sur la théorie de déformation J2. Pour les plaques encastrées, à l'extrémité de la courbe contrainte-déformation, la différence maximale est d'environ 10%. Étonnamment par contre, pour les plaques simplement supportées, les résultats de la théorie incrémentale de la plasticité sont plus importants par moins de 1%. Ceci veut dire que, pour les plaques simplement supportées, le paradoxe du voilement plastique ne s'applique pas et ce, même en présence d'une fondation.
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Berrada, Kamal. "An experimental investigation of the plastic buckling of aluminum plates /." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63160.

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Abayakoon, Sarath Bandara Samarasinghe. "Large deflection elastic-plastic analysis of plate structures by the finite strip method." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26946.

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A solution procedure based on the finite strip method is presented herein, for the analysis of plate systems exhibiting geometric and material non-linearities. Special emphasis is given to the particular problem of rectangular plates with stiffeners running in a direction parallel to one side of the plate. The finite strip method is selected for the analysis as the geometry of the problem is well suited for the application of this method and also as the problem is too complicated to solve analytically. Large deflection effects are included in the present study, by taking first, order non-linearities in strain-displacement relations into account. Material non-linearities are handled by following von-Mises yield criterion and associated flow rule. A bi-linear stress-strain relationship is assumed for the plate material, if tested under uniaxial conditions. Numerical integration of virtual work equations is performed by employing Gauss quadrature. The number of integration points required in a given direction is determined either by observing the individual terms to be integrated or by previous experience. The final set of non-linear equations is solved via a Newton-Raphson iterative scheme, starting with the linear solution. Numerical investigations are carried out by applying the finite strip computer programme to analyse uniformly loaded rectangular and I beams with both simply supported and clamped ends. Displacements, stresses and moments along the beam are compared with analytical solutions in linear analyses and with finite element solutions in non-linear analyses. Investigations are also extended to determine the response of laterally loaded square plates with simply supported and clamped boundaries. Finally, a uniformly loaded stiffened panel is analysed and the results are compared with finite element results. It was revealed that a single mode in the strip direction was sufficient to yield engineering accuracy for design purposes, with most problems.
Applied Science, Faculty of
Civil Engineering, Department of
Graduate
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Schubak, Robert Brian. "Nonlinear rigid-plastic analysis of stiffened plates under blast loads." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/31482.

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The large ductile deformation response of stiffened plates subjected to blast loads is investigated and simplified methods of analysis of such response are developed. Simplification is derived from modelling stiffened plates as singly symmetric beams or as grillages thereof. These beams are further assumed to behave in a rigid, perfectly plastic manner and to have piecewise linear bending moment-axial force capacity interaction relations, otherwise known as yield curves. A blast loaded, one-way stiffened plate is modelled as a singly symmetric beam comprised of one stiffener and its tributary plating, and subjected to a uniformly distributed line load. For a stiffened plate having edges fully restrained against rotations and translations, both transverse and in-plane, use of the piecewise linear yield curve divides the response of the beam model into two distinct phases: an initial small displacement phase wherein the beam responds as a plastic hinge mechanism, and a final large displacement phase wherein the beam responds as a plastic string. If the line load is restricted to be a blast-type pulse, such response is governed by linear differential equations and so may be solved in closed form. Examples of a one-way stiffened plate subjected to various blast-type pulses demonstrate good agreement between the present rigid-plastic formulation and elastic-plastic beam finite element and finite strip solutions. The response of a one-way stiffened plate is alternatively analysed by approximating it as a sequence of instantaneous mode responses. An instantaneous mode is analogous to a normal mode of linear vibration, but because of system nonlinearity exists for only the instant and deformed configuration considered. The instantaneous mode shapes are determined by an extremum principle which maximizes the rate of change of the stiffened plate's kinetic energy. This approximate rigid-plastic response is not solved in closed form but rather by a semi-analytical time-stepping algorithm. Instantaneous mode solutions compare very well with the closed-form results. The instantaneous mode analysis is extended to the case of two-way stiffened plates, which are modelled by grillages of singly symmetric beams. For two examples of blast loaded two-way stiffened plates, instantaneous mode solutions are compared to results from super finite element analyses. In one of these examples the comparison between analyses is extremely good; in the other, although the magnitudes of displacement response differ between the analyses, the predicted durations and mechanisms of response are in agreement. Incomplete fixity of a stiffened plate's edges is accounted for in the beam and grillage models by way of rigid-plastic links connecting the beams to their rigid supports. Like the beams, these links are assumed to have piecewise linear yield curves, but with reduced bending moment and axial force capacities. The instantaneous mode solution is modified accordingly, and its results again compare well with those of beam finite element analyses. Modifications to the closed-form and instantaneous mode solutions to account for strain rate sensitivity of the panel material are presented. In the closed-form solution, such modification takes the form of an effective dynamic yield stress to be used throughout the rigid-plastic analysis. In the time-stepping instantaneous mode solution, a dynamic yield stress is calculated at each time step and used within that time step only. With these modifications in place, the responses of rate-sensitive one-way stiffened plates predicted by the present analyses once again compare well with finite element and finite strip solutions.
Applied Science, Faculty of
Civil Engineering, Department of
Graduate
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Ahmed, Mohammed Zakaria. "Plastic buckling of plates including edge contact-frictional force effects." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185662.

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In this study, the effects of edge contact-frictional force imposed by the machine heads on the distribution of stress state prior to buckling of plates are investigated. A contact-friction interface element is included in the pre-buckling analysis which considers the possibility of slip between the machine heads and the plate. All analyses are performed using the incremental theory of plasticity in which the formulations given by Ramberg-Osgood and Richard are implemented to calculate the tangent modulus. The pre-buckling stress states are used to determine the buckling stresses. In the buckling formulation of the plate, an element stiffness based on Hermitian interpolation function is included. The buckling stresses are compared with those of the test results and the closed form solutions available in the literature. The effect of edge boundary imperfections are also considered in this study.
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Tropsa, Vlado. "Predicting residual stresses due to solidification in cast plastic plates." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271561.

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Books on the topic "Plastic bearability of plates"

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Sawzcuk, A. Limit analysis of plates. Warszawa: Polish Scientific Publishers, 1993.

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1914-, Massonnet C. E., Saxce Géry de, and Saxce Géry de, eds. Plastic limit analysis of plates, shells, and disks. 2nd ed. Amsterdam: Elsevier, 1997.

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Save, M. A. Atlas of limit loads of metal plates, shells, and disks. Amsterdam: Elsevier, 1995.

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Roberts, Cynthia. Switch-plate covers: Dress up those ordinary switch-plates with 12 whimsical plastic canvas covers! Berne, IN: Needlecraft Shop, 2006.

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Marciniak, Z. Mechanics of sheet metal forming. 2nd ed. Oxford: Butterworth-Heinemann, 2002.

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L, Duncan J., ed. Mechanics of sheet metal forming. London: Edward Arnold, 1992.

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Plastic Limit Analysis of Plates, Shells and Disks. Elsevier, 1997. http://dx.doi.org/10.1016/s0167-5931(97)x8001-5.

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George, Z. Voyiadjis Pawel Woelke. Elasto-Plastic and Damage Analysis of Plates and Shells. Springer, 2008.

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Elasto-Plastic and Damage Analysis of Plates and Shells. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-79351-9.

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Eareckson, Peter Dudley. Elasto-plastic analysis of axisymmetrically loaded circular plates using Green's functions. 1986.

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Book chapters on the topic "Plastic bearability of plates"

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Chakrabarty, J. "Plastic Bending of Plates." In Mechanical Engineering Series, 227–312. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-77674-3_4.

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Chakrabarty, J. "Plastic Bending of Plates." In Mechanical Engineering Series, 225–96. New York, NY: Springer New York, 2000. http://dx.doi.org/10.1007/978-1-4757-3268-9_4.

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Handa, Kamal. "Probabilistic Analysis of Plastic Plates." In Probabilistic Methods in the Mechanics of Solids and Structures, 271–80. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82419-7_25.

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Pavilainen, Galina. "Elasto-plastic deformations of ribbed plates." In Asymptotic Methods in Mechanics, 227–33. Providence, Rhode Island: American Mathematical Society, 1993. http://dx.doi.org/10.1090/crmp/003/16.

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Lindberg, Herbert E., and Alexander L. Florence. "Plastic Flow Buckling of Rectangular Plates." In Dynamic Pulse Buckling, 349–72. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3657-7_6.

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Lellep, Jaan, and Boriss Vlassov. "Elastic Plastic Analysis of Elliptical Plates." In Lecture Notes in Mechanical Engineering, 639–48. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-75677-6_55.

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Cyras, A., and A. Daniunas. "Mathematical Models for the Analysis and Optimization of Elasto-plastic Plates and Shells Under Complete Plastic Failure." In Inelastic Behaviour of Plates and Shells, 345–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82776-1_17.

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Rozvany, G. I. N., and T. G. Ong. "Optimal Plastic Design of Plates, Shells and Shellgrids." In Inelastic Behaviour of Plates and Shells, 357–84. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82776-1_18.

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Calladine, C. R. "Analysis of Large Plastic Deformations in Shell Structures." In Inelastic Behaviour of Plates and Shells, 69–101. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82776-1_4.

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Alkorta, Jon, and Javier Gil Sevillano. "Optimal SPD Processing of Plates by Constrained Groove Pressing (CGP)." In Nanomaterials by Severe Plastic Deformation, 491–97. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527602461.ch9b.

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Conference papers on the topic "Plastic bearability of plates"

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Corona, Edmundo. "Collapse of elastic-plastic plates with cracks." In 41st Structures, Structural Dynamics, and Materials Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2000. http://dx.doi.org/10.2514/6.2000-1595.

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Naghdabadi, Reza, and Mohsen Shahi. "Large Elastic-Plastic Deformation Analysis of Rectangular Plates." In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1203.

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The purpose of this paper is to find a fast and simple solution for the large deformation of rectangular plates considering elastic-plastic behavior. This analysis contains material and geometric nonlinearities. For geometric nonlinearity the concept of load analogy is used. In this method the effect of nonlinear terms of lateral displacement is considered as suitable combination of additional fictitious lateral load, edge moment and in-plane forces acting on the plate. Variable Material Property (V.M.P.) method has been used for analysis of material nonlinearity. In this method, the basic relations maintain the form of stress-strain elastic formula, while material properties are modified to take into account the path-dependency involved in elastic-plastic deformations. Therefore, the solution of a von-Karman plate enduring large elastic-plastic deformations is reduced to that of an equivalent elastic plate undergoing small deformations. The method of solution employed in this study is computationally efficient and can easily be used for various boundary conditions and loadings.
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Fisher, David, and Ron Hofmann. "CNC machining plastic injection mold plates in the classroom." In 2007 37th annual frontiers in education conference - global engineering: knowledge without borders, opportunities without passports. IEEE, 2007. http://dx.doi.org/10.1109/fie.2007.4417886.

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Chakrabarty, J. "INFLUENCE OF ANISOTROPY ON THE PLASTIC BUCKLING OF RECTANGULAR PLATES." In Proceedings of the Second International Conference. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812776228_0063.

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Yang, Ping, and Ying Peng. "Dynamic Response of Blast-Loaded Stiffened Plates by Rigid-Plastic Analysis." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-21044.

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The dynamic response of one-way stiffened plates with clamped edges subjected to uniformly distributed blast-induced shock loading is theoretically investigated using a singly symmetric beam model. The beam model is based on the rigid-perfectly plastic assumption. The bending moment-axial force capacity interaction relation or yield curve for singly symmetric cross-section is derived and explicitly presented. The deflection condition that a plastic string response must satisfy is determined by the linearized interaction curve and associated plastic flow rule. Moreover, the possible motion mechanisms of the beam are discussed under different load intensity. Finally the dynamic response of a one-way stiffened plate is calculated theoretically and numerically. Good agreements are obtained between the presented theoretical results and those from numerical calculations of the FEM software ANSYS and ABAQUS/Explicit. It is concluded that the basic assumptions and approximations for simplifying calculations are reasonable and the beam model in theoretical analysis is adoptable. The example also shows that an arbitrary blast load can be replaced equivalently by a rectangular type pulse.
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Nemirovsky, Yu V. "Dynamic bending of plastic polymetallic plates with piece-smooth elliptic contours." In HIGH-ENERGY PROCESSES IN CONDENSED MATTER (HEPCM 2019): Proceedings of the XXVI Conference on High-Energy Processes in Condensed Matter, dedicated to the 150th anniversary of the birth of S.A. Chaplygin. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5117392.

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Yuge, Kohei, Nobuhiro Iwai, and Noboru Kikuchi. "Topology Optimization Algorithm for Plates and Shells Subjected to Plastic Deformations." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/dac-5603.

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Abstract A topology optimization method for plates and shells subjected to plastic deformations is presented. The algorithms is based on the generalized layout optimization method invented by Bendsϕe and Kikuchi (1988), where an admissible design domain is assumed to be composed of microstructures with periodic cavities. The sizes of the cavities and the rotational angles of the microstructures are design variables which are optimized so as to minimize the applied work. The macroscopic material tensor for the porous material is numerically calculated by the homogenization method for the sensitivity analysis. In this paper, the method is applied to two-dimensional elasto-plastic problems. A database of the material tensor and its interpolation technique are presented. The algorithm is expanded into thin shells subjected to finite deformations. Several numerical examples are shown to demonstrate the effectiveness of these algorithms.
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Liu, Bin, Richard Villavicencio, and C. Guedes Soares. "Plastic Response and Failure Prediction of Stiffened Plates Punched by a Wedge." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-11043.

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Experimental tests have been performed to examine the response of small-scale stiffened plates laterally punched by a wedge. The specimens are supported at two opposite edges and the indenter is located at the mid-span. In the unsupported edges, the ends of the stiffeners are either connected to transverse stiffeners or remain free. The obtained force-displacement responses show a good agreement with the simulations performed by the LS-DYNA finite element solver. The finite element model includes defining the experimental boundary condition so as to simulate small axial displacements of the specimen at the supports. The strain hardening of the material is defined using experimental data of quasi-static tension tests and the critical failure strain is evaluated using tensile test simulations. The results show that the response of the specimens is highly sensitive to the amount of restraint provided at the supports. In addition, simplified calculations are proposed to evaluate the contribution of each structural component on the energy absorbed by the stiffened plate specimens.
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Liu, Bin, Richard Villavicencio, and C. Guedes Soares. "Experimental and Numerical Plastic Response and Failure of Laterally Impacted Rectangular Plates." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-84015.

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Experimental and numerical results of drop weight impact test are presented, on the plastic behaviour and fracture of rectangular plates stuck laterally by a mass with a hemispherical indenter. Six specimens were tested in order to study the influence of the impact velocity and the diameter of the indenter. The impact scenarios could represent abnormal actions on marine structures, such as ship collision and grounding or dropped objects on deck structures. The tests are conducted on a fully instrumented impact tester machine. The obtained force-displacement response is compared with numerical simulations, performed by the LS-DYNA finite element solver. The simulations aim at proposing techniques for defining the material and restraints on finite element models which analyze the crashworthiness of marine structures. The mesh size and the critical failure strain are predicted by numerical simulations of the tensile tests used to obtain the mechanical properties of the material. The experimental boundary conditions are modelled in order to represent the reacting forces developed during the impact. The results show that the critical impact energy until failure is strongly sensitive to the diameter of the striker. The shape of the failure modes is well predicted by the finite element models when a relatively fine mesh is used. Comments on the process of initiation and propagation of fracture are presented.
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Sitaram, Pattabhi, Bipin Pai, and Rachel Mok. "Elasto-Plastic Analysis of Prismatic Folded Plates by the Finite Element Method." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-88195.

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Folded plate structures are used for roofing large column-free areas for auditoriums, supermarkets, gymnasiums, hangars for aircraft, and other similar applications. The loads on these structures could cause stresses to go beyond the elastic range. Therefore, a thorough understanding of their elasto-plastic behavior is of utmost importance in designing these structures. An attempt is made to study the elasto-plastic behavior of prismatic metal folded plates by the finite element method using the commercial software, ANSYS. The method is first validated by analyzing typical plates and shells, and comparing them with available solutions in the literature. The elasto-plastic behavior of some prismatic folded plates is then studied, and their force-deflection responses and evolution of plastic zones are evaluated.
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Reports on the topic "Plastic bearability of plates"

1

Akileh, Aiman. Elastic-plastic analysis of axisymmetrically loaded isotropic circular and annular plates undergoing large deflections. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.5441.

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HYSTERETIC PERFORMANCE OF WEAK-AXIS CONNECTION WITH I-SHAPED PLATES IN STEEL FRAME. The Hong Kong Institute of Steel Construction, September 2021. http://dx.doi.org/10.18057/ijasc.2021.17.3.1.

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This paper elucidates numerically the behavior of weak-axis moment connections proposed by welding I-shaped plates in the H-section column to increase connection strength and ductility in steel frame. After validating the numerical methods through comparing the results of numerical analysis and experiments, the effectiveness of the proposed weak-axis connection were examined through comparing to the traditional weak-axis connection. The proposed weak-axis connection could move the highest stresses away from the start-stop points of a weld, and thus preventing the premature brittle fracture of the beam flange welds. The plastic hinge formed away from the beam-column interface, while the local buckling occurred in the weld access holes region in the traditional weak-axis connection. The proposed weak-axis connections can be classified as rigid in a strong-bracing system, and be classified as semi-rigid in weak-supported or unsupported system. And then a series of parametric studies was conducted to better understand the behavior of proposed weak-axis moment connections. The force-displacement relationships, location of the plastic hinge, Mises index (MI), triaxiality index (TI) and rupture index (RI) distributions at the beam flange welds were reported in detail. According to the numerical analysis, the design variables of I-shaped plates and widened flange plate are suggested, along with a design procedure.
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