Recent finite element studies in plasticity and fracture mechanics
Recent finite element studies in plasticity and fracture mechanics
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DOI：
10.1016/0045-7825(79)90026-4
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发表时间：
1978-08
影响因子：
7.2
通讯作者：
J. Rice;R. McMeeking;D. Parks;E. Sorensen
中科院分区：
文献类型：
--
作者：
J. Rice;R. McMeeking;D. Parks;E. Sorensen
本文综述了弹塑性有限元分析的基本原理及其在延性固体裂纹张开和扩展力学中的应用。演示开始与增量平衡方程的精确公式和他们的有限元形式的方式有效的任意大小的变形。考虑到弹塑性响应的近不可压缩性，本文概述了计算过程的特殊特点，以保证计算的准确性。裂纹力学的应用包括分析逐渐打开的裂纹尖端处的大塑性变形，确定裂纹尖端场强度的积分值和限制，以及确定稳定裂纹扩展中的裂纹尖端场。
The 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 ofJintegral values and of limitations toJcharacterizations of the intensity of the crack tip field, and the determination of crack tip fields in stable crack growth.