Continuum mechanical and computational aspects of material behavior | |
Fried, Eliot ; Gurtin, Morton E. | |
Department of Theoretical and Applied Mechanics, University of Illinois at Urbana-Champaign, Urbana, IL (United States) | |
关键词: Cracks; Fractures; 75 Condensed Matter Physics, Superconductivity And Superfluidity; Plasticity; Free Energy; | |
DOI : 10.2172/811358 RP-ID : None RP-ID : FG02-97ER25317 RP-ID : 811358 |
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美国|英语 | |
来源: UNT Digital Library | |
【 摘 要 】
The focus of the work is the application of continuum mechanics to materials science, specifically to the macroscopic characterization of material behavior at small length scales. The long-term goals are a continuum-mechanical framework for the study of materials that provides a basis for general theories and leads to boundary-value problems of physical relevance, and computational methods appropriate to these problems supplemented by physically meaningful regularizations to aid in their solution. Specific studies include the following: the development of a theory of polycrystalline plasticity that incorporates free energy associated with lattice mismatch between grains; the development of a theory of geometrically necessary dislocations within the context of finite-strain plasticity; the development of a gradient theory for single-crystal plasticity with geometrically necessary dislocations; simulations of dynamical fracture using a theory that allows for the kinking and branching of cracks; computation of segregation and compaction in flowing granular materials.
【 预 览 】
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811358.pdf | 1309KB | download |