A Combined Kinematic-Isotropic Hardening Theory for Porous Inelasticity of Ductile Metals
Source abstract
Abstract
A general treatment of multiaxial inelastic deformation for arbitrarily large strain necessitates consideration of effects of material porosity and its evolution, combined kinematic-isotropic hardening, dislocation substructure stress-state effects and textural anisotropy, rate- and temperature-dependence, void anisotropy, and failure criteria, among other things. The full set of three invariants of the stress (overstress) tensor is essential for a satisfactory first-order description of these effects. A framework is set forth in this article that is sufficiently general to include arbitrary void growth laws and various state variable inelasticity theories. The framework is applied, within the context of rate-independent plasticity, to predict evolution of void growth during tensile loading of pressurized, cir cumferentially notched specimens using two different void growth models.
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Research context
OpenAlex topics: Metal Forming Simulation Techniques · Metallurgy and Material Forming · Microstructure and mechanical properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
George W Woodruff School of Mechanical Engineering Georgia Institute of Technology Atlanta, GA 30332-0405
IRSID St. Germain en Laye France
References (47)
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