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Material card for Sand

Altair Forum User

Hello there,

Please guide me with what CARD should I use if I want to give properties to sand.

Is MAT1 correct option to go with?

thank you

Surya

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Altair Forum User

Hi Surya,

What properties do you have and what is the simulation about?

Altair Forum User

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

Surya

Altair Forum User

Hi Surya,

Please have a look at LAW 21 for sand.

Altair Forum User

thank you,

I will try it out

gopal_rathore

Hi,

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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