Recent finite element studies in plasticity and fracture mechanics
1979; Elsevier BV; Volume: 17-18; Linguagem: Inglês
10.1016/0045-7825(79)90026-4
ISSN1879-2138
AutoresJ. R. Rice, Robert M. McMeeking, David M. Parks, E. P. Sorensen,
Tópico(s)Mechanical stress and fatigue analysis
ResumoThe paper reviews recent work on fundamentals of elastic-plastic finite-element analysis and its applications to the mechanics of crack opening and growth in ductile solids. The presentation begins with a precise formulation of incremental equilibrium equations and their finite-element forms in a manner valid for deformations of arbitrary magnitude. Special features of computational procedures are outlined for accuracy in view of the near-incompressibility of elastic-plastic response. Applications to crack mechanics include the analysis of large plastic deformations at a progressively opening crack tip, the determination of J integral values and of limitations to J characterizations of the intensity of the crack tip field, and the determination of crack tip fields in stable crack growth.
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