Analysis of a model of field crack mechanics for brittle materials

被引：8
|
作者：
Morin, Leo [1 ]
Acharya, Amit [2 ,3 ]
机构：
[1] HESAM Univ, PIMM, Arts & Metiers Inst Technol, CNRS,Cnam, 151 Blvd Hop, F-75013 Paris, France
[2] Carnegie Mellon Univ, Dept Civil & Environm Engn, Pittsburgh, PA 15213 USA
[3] Carnegie Mellon Univ, Ctr Nonlinear Anal, Pittsburgh, PA 15213 USA
来源：
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2021年 / 386卷
基金：
美国国家科学基金会;
关键词：
Field Crack Mechanics; Brittle fracture; FFT-based solver; Dynamics; FOURIER-BASED SCHEMES; FRACTURE PROPAGATION; VARIATIONAL APPROACH; ROCK; DISLOCATION; COMPOSITES; BEHAVIOR; OPERATOR; FAILURE; GROWTH;
D O I：
10.1016/j.cma.2021.114061
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A computational model for arbitrary brittle crack propagation, in a fault-like layer within a 3-d elastic domain, and its associated quasi-static and dynamic fields is developed and analyzed. It uses a FFT-based solver for the balance of linear momentum and a Godunov-type projection-evolution method for the crack evolution equation. As applications, we explore the questions of equilibria and irreversibility for crack propagation with and without surface energy, existence of strength and toughness criteria, crack propagation under quasi-static and dynamic conditions, including Modes I, II and III, as well as multiaxial compressive loadings. (C) 2021 The Author(s). Published by Elsevier B.V.
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页数：39
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