i*******k 发帖数: 578 | 1 我想在ABAQUS里面模拟随着材料所受应变增大,crack数量变多,single crack path可
以是predefined,这个可以怎么处理?seam crack可以处理predefined crack,但是好
像没法处理crack数量变多?XFEM可以predict solution-dependent crack path, 但是
能produce more and more cracks吗? |
i*******k 发帖数: 578 | |
g*****g 发帖数: 390 | 3 Never dealt with this before but feel abacus should be able to handle this.
Suggest u to check their manual. U probably have to provide some material
property or crack generation criteria, such as what strain begin crack.
Abacus should be able to process surface energy, strain relaxation,
remedying, etc. Just guessing. |
T***E 发帖数: 996 | 4 cohesive elements?
【在 i*******k 的大作中提到】![](/moin_static193/solenoid/img/up.png) : 我想在ABAQUS里面模拟随着材料所受应变增大,crack数量变多,single crack path可 : 以是predefined,这个可以怎么处理?seam crack可以处理predefined crack,但是好 : 像没法处理crack数量变多?XFEM可以predict solution-dependent crack path, 但是 : 能produce more and more cracks吗?
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l*****2 发帖数: 93 | 5 xfem可以解决
【在 i*******k 的大作中提到】![](/moin_static193/solenoid/img/up.png) : 我想在ABAQUS里面模拟随着材料所受应变增大,crack数量变多,single crack path可 : 以是predefined,这个可以怎么处理?seam crack可以处理predefined crack,但是好 : 像没法处理crack数量变多?XFEM可以predict solution-dependent crack path, 但是 : 能produce more and more cracks吗?
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i*******k 发帖数: 578 | 6 谢谢,正在用xfem解决。我想要的功能都能实现,不过显然遇到了convergence
problem,每次只算了一点就提示time increment needed is smaller than minimum
increment specified.
【在 l*****2 的大作中提到】![](/moin_static193/solenoid/img/up.png) : xfem可以解决
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c******x 发帖数: 21 | 7 better use the displacement control |
c***r 发帖数: 1570 | 8 个人认为目前所有的裂纹仿真程序都是错误的,因为裂纹扩展的物理机制尚不清楚。 |