Schur‐type preconditioning of a phase‐field fracture model in mixed form
Schur‐type preconditioning of a phase‐field fracture model in mixed form
复制标题
混合形式相场断裂模型的 Schur 型预处理
DOI:
10.1002/pamm.202100065
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Wick, Thomas
中科院分区:
文献类型:
--
作者:
Heister, Timo;Mang, Katrin;Wick, Thomas
In the context of phase‐field modeling of fractures in incompressible materials, a mixed form of the elasticity equation can overcome possible volume locking effects. The drawback is that a coupled variational inequality system with three unknowns (displacements, pressure and phase‐field) has to be solved, which increases the overall workload. Efficient preconditioning at this point is an indispensable tool. In this work, a problem‐specific iterative solver is proposed leveraging the saddle‐point structure of the displacement and pressure variable. A Schur‐type preconditioner is developed to avoid ill‐conditioning of the phase‐field fracture problem. Finally, we show numerical results of a pressure‐driven benchmark which to confirm the robustness of the solver.
登录
查看更多内容
影响因子:
9.7
作者:
J. Schröder;T. Wick;S. Reese;P. Wriggers;R. Müller;S. Kollmannsberger;M. Kästner;A. Schwarz;Maximilian Igelbüscher;Nils Viebahn;H. Bayat;S. Wulfinghoff;K. Mang;E. Rank;Tino Bog;Davide D’Angella;M. Elhaddad;P. Hennig;A. Düster;W. Garhuom;Simeon Hubrich;Mirjam Walloth;W. Wollner;C. Kuhn;T. Heister
通讯作者:
T. Heister
DOI:
--
发表时间:
1969
期刊:
--
影响因子:
--
作者:
I. N. Sneddon;M. Lowengrub
通讯作者:
I. N. Sneddon;M. Lowengrub
DOI:
10.1016/j.simpa.2020.100045
发表时间:
2020
期刊:
Software Impacts
影响因子:
--
作者:
Heister, Timo;Wick, Thomas
通讯作者:
Wick, Thomas
DOI:
10.1137/1.9780898718003
发表时间:
2003-05
期刊:
--
影响因子:
--
作者:
Y. Saad
通讯作者:
Y. Saad
影响因子:
4.1
作者:
K. Mang;T. Wick;W. Wollner
通讯作者:
W. Wollner