A high-order finite deformation phase-field approach to fracture

A high-order finite deformation phase-field approach to fracture
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断裂的高阶有限变形相场方法

DOI:
10.1007/s00161-015-0440-7
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发表时间:
2015
影响因子:
2.6
通讯作者:
K. Weinberg
K. Weinberg
中科院分区:
工程技术3区
文献类型:
--
作者:
C. Hesch;K. Weinberg

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相场法裂缝允许方便和有效的模拟复杂的裂缝模式。本文将相场断裂的两种变分形式,即普通的二阶模型和一种新的四阶模型,与一般非线性材料的有限变形分析相结合。该材料模型是基于在拉伸和压缩部分的主拉伸的乘法分解。经典的数值例子说明了新方法的优良性能。
Phase-field approaches to fracture allow for convenient and efficient simulation of complex fracture pattern. In this paper, two variational formulations of phase-field fracture, a common second-order model and a new fourth-order model, are combined with a finite deformation ansatz for general nonlinear materials. The material model is based on a multiplicative decomposition of the principal stretches in a tensile and a compressive part. The excellent performance of the new approach is illustrated in classical numerical examples.
DOI: 10.1002/nme.4709
发表时间: 2014-09
影响因子: 2.9
作者:
C. Hesch;K. Weinberg
通讯作者: C. Hesch;K. Weinberg