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suryanshu walvekar

Material card for Sand

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Hi Prakash,

Actually I am doing a crash simulation when a car hits a highway guardrail, the rods of which are buried in the ground up to a certain height.

Hence I needed the contact type between rod material and ground (here sand).

I have the density & poisson's ratio.

Actually now I realized I have by mistake put my query in Optistruct query stream, I am doing it in Radioss, sorry for that.


Thank you


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I have worked on security bollards which is similar to this. I my case I had concrete foundation which is made by digging a pit and then pouring concrete

Are the guard rails also in the concrete and then we have an interface with sand?


For concrete: MAT LAW 24 will work and for sand MAT LAW 21 can be used.

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