Download Anisotropy and Localization of Plastic Deformation: by Jacob Aboudi (auth.), Jean-Paul Boehler, Akhtar S. Khan PDF

By Jacob Aboudi (auth.), Jean-Paul Boehler, Akhtar S. Khan (eds.)

Present advancements in fabrics technology, mechanics and engineering, in addition to the calls for of recent know-how, lead to a brand new and becoming curiosity in plasticity and in bordering domain names of the mechanical habit of fabrics. This starting to be curiosity is attested to via the luck of either The foreign magazine of Plasticity, which after its inception speedily grew to become the prime magazine for plasticity learn, and the sequence ofInternational Symposia on Plasticity and Its present purposes, that's now the most efficient foreign discussion board for plasticity examine dissemination. the 1st overseas Symposium on Plasticity and Its present functions was once conceived and arranged via Professor Akhtar S. Khan, and used to be held on the collage of Oklahoma (Norman, Oklahoma, united states) from July 30 to August three, 1984. It was once attended by way of over 100 scientists from fifteen nations. "Plasticity '89: the second one foreign Symposium on Plasticity and Its present functions" used to be held at Mie college (Tsu, Japan) from July 31 to August four, 1989; this symposium was once co-chaired via Professors Khan and Tokuda. the most emphasis of this assembly was once on dynamic plasticity and micromechanics, even though it incorporated different facets of plasticity to boot. It was once attended by way of over 200 researchers from twenty-three nations.

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Extra resources for Anisotropy and Localization of Plastic Deformation: Proceedings of PLASTICITY ’91: The Third International Symposium on Plasticity and Its Current Applications

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Benveniste, Y. , "On a Correspondence Between Mechanical and Thermal Effects in Two-Phase Composites," Micromechanics and Inhomogeneity, eds. J. Weng, M. Taya and H. Abe, Springer-Verlag, New York, 1990, 65--81. 5. Bahei-El-Din, Y. , "Yielding and Thermal Hardening in Fibrous Composite Laminates," to be published. A. KARDOMATEAS School of Aerospace Engineering, Georgia Institute of Technology Atlanta, Georgia 30332-0150 ABSTRACT Composite systems consisting of sheet reinforcement and polymeric or metallic matrix which can undergo plastic deformation present unique and unexplored issues with respect to the mechanics of their deformation, especially in the presence of cracks.

For simplicity, the power exponent of one of the phases will be taken to be unity corresponding to linear behavior, while the other phase will assumed to satisfy a pure-power creeping law. Both phases will be assumed to be isotropic and incompressible. INTRODUCTION A new procedure for estimating the effective properties of composite materials with phases exhibiting nonlinear constitutive behavior has been proposed recently by Ponte Castaneda [6]. The straightforward and versatile procedure expresses the effective properties of the nonlinear composite in terms of the effective properties of a family of linear composites with the same distribution of phases as the nonlinear composite.

The matrix is assumed to be characterized by classical rate independent strain hardening plasticity theory, and the analysis is performed using the finite element method. Results indicate that there is a significant variation in the interfacial stresses for one-, two-, and three-ply laminates. Therefore, it is concluded that composite structures with the characteristics described above may need to be modelled by nonlocal constitutive models in order to predict the evolution of both fiber and matrix cracking.

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