For the problem of crack propagation, I want to know what are the advantages of using an explicit method or using an implicit method to solve the PDE?
Depends on your analysis. Generally you model cracks implicitly, using Abaqus/Standard. There is an extension within Abaqus called XFEM which can be used to solve crack propagation problems. If you have complex contact interactions as well in your analysis, you may want to do co-simulation, i.e., have your Abaqus/Standard results feed the Explicit run. Explicit handles complex contact interactions much better.
Attached document may help you further.
http://www.simulia.com/download/rum11/UK/Advanced-XFEM-Analysis.pdf
I just want to add that arc-length control is now at a stage that is sufficient for implicit FE analyses with sharp snapbacks. See the examples in the attached paper.
Best regards,
Phu
Article An open source program to generate zero-thickness cohesive i...
Hai friends,
Am doing a project on simulation of crack growth propagation in shell elements using ansys. I have designed the model and determined the stress intensity factor k1 using APDL codes.
It would be a great help if someone could help me in crack growth simulation
thank you.
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