The primary purpose of this update is to outline progress that has been made in three directions: 1) exhibiting the real but limited instability of configuration and instability of path for loaded homogeneous specimens of a material model that obeys a non-associated flow rule; 2) exploring the roles of inhomogeneity of material and of stress as explanations for the suitability of idealizing the macroscopic plastic behavior of most structural metals and alloys as stable and time-independent over much of their range of use, despite possible instability on the miniscale and the always-present strong instability and time-dependence on the microscale; and 3) the search for a clearer picture of the likely relation of macroscopic flow stress to properties of dislocation arrays and barrier regions. Other topics, touched upon very briefly, include: finite elastoplasticity, the application of thermodynamics, and the increasing variety of non-traditional or unconventional formulations.
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October 1996
Review Articles
Update of Conventional and Unconventional Plastic Response and Representation
Daniel C. Drucker
Daniel C. Drucker
Department of Aerospace Engineering, Mechanics, and Engineering Science, University of Florida, Gainesville FL 32611-6250
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Daniel C. Drucker
Department of Aerospace Engineering, Mechanics, and Engineering Science, University of Florida, Gainesville FL 32611-6250
Appl. Mech. Rev. Oct 1996, 49(10S): S92-S100
Published Online: October 1, 1996
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Online:
April 20, 2009
Citation
Drucker, D. C. (October 1, 1996). "Update of Conventional and Unconventional Plastic Response and Representation." ASME. Appl. Mech. Rev. October 1996; 49(10S): S92–S100. https://doi.org/10.1115/1.3101982
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