Regarding the implementation of erosion criteria in SPH formulations

[Nikesh Kumar Ojha]

Hello all,

I am currently simulating an impact problem using LS-DYNA, where I have employed the SPH technique. I would like to implement an erosion criterion for SPH particles and have the following doubts:

1. Can erosion criteria be applied in the SPH method? If yes,

2. How can different erosion criteria (such as pressure-based or temperature-based) be implemented?

I would greatly appreciate your suggestions in this regard

Regards

nikesh

[l...@schwer.net]

1\ I believe erosion is available for SPH particles.

 

2\ The key word *MAT_ADD_EROSION offers many forms of built in erosion criteria. In particular

 

MXPRES -- Maximum pressure at failure, Pmax. If the value is exactly zero, it is automatically excluded to maintain compatibility with old input

files.

 

See the User Manual Volume II

 

I do not believe there is a temperature based erosion criterion.

 

                                --len

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