Create FOAM material property

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

Sir,

 

I  want to create foam material with density 140kg/m3 density. Should I use MAT LAW 70 . What all properties should I define to get the energy absorbed by foam material as output. Currently I have only density data and shell meshing

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2020

    Hi,

    You can use /MAT/LAW70 for modelling foam, but can only be used with solid elements. Law 70 is a simple material model for visco-elastic foam tabulated material where the viscosity is defined by stress-strain curves for different strain rate. You should have the loading functions which describes the behavior of the foam upon loading.

    Please go through the attached model file which is a case where Law70 is used.

     

    For shell elements use Lsw69. Please go through the Help Menu on this material law.

    Unable to find an attachment - read this blog

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