Material card for Sand

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

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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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2018

    Hi Surya,

     

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

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2018

    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
    Altair Forum User
    Altair Employee
    edited June 2018

    Hi Surya,

     

    Please have a look at LAW 21 for sand.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2018

    thank you,

     

    I will try it out

  • gopal_rathore
    gopal_rathore Altair Community Member
    edited June 2018

    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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