Numerical methods for coupled fracture problems
Numerical methods for coupled fracture problems
复制标题
耦合断裂问题的数值方法
DOI:
10.1016/j.jmps.2018.01.008
复制
发表时间:
2018
影响因子:
5.3
通讯作者:
Garagash, Dmitry I.
中科院分区:
文献类型:
--
作者:
Viesca, Robert C.;Garagash, Dmitry I.
We consider numerical solutions in which the linear elastic response to an opening- or sliding-mode fracture couples with one or more processes. Classic examples of such problems include traction-free cracks leading to stress singularities or cracks with cohesive-zone strength requirements leading to non-singular stress distributions. These classical problems have characteristic square-root asymptotic behavior for stress, relative displacement, or their derivatives. Prior work has shown that such asymptotics lead to a natural quadrature of the singular integrals at roots of Chebyhsev polynomials of the first, second, third, or fourth kind. We show that such quadratures lead to convenient techniques for interpolation, differentiation, and integration, with the potential for spectral accuracy. We further show that these techniques, with slight amendment, may continue to be used for non-classical problems which lack the classical asymptotic behavior. We consider solutions to example problems of both the classical and non-classical variety (e.g., fluid-driven opening-mode fracture and fault shear rupture driven by thermal weakening), with comparisons to analytical solutions or asymptotes, where available.
登录
查看更多内容
DOI:
--
发表时间:
1981
期刊:
影响因子:
--
作者:
A. Gerasoulis;R. P. Srivastav
通讯作者:
R. P. Srivastav
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
J. Dempsey;L. Tan;Shen Wang
通讯作者:
Shen Wang
DOI:
10.1098/rspa.2016.0254
发表时间:
2016
期刊:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
R. Viesca
通讯作者:
R. Viesca
影响因子:
3.4
作者:
Brantut N
通讯作者:
Brantut N
影响因子:
--
作者:
D. Garagash
通讯作者:
D. Garagash