MAT1 and MAT4

karth
karth Altair Community Member
edited October 2020 in Community Q&A

I did a thermal expansion analysis of an ignition coil assembly using MAT1 material. Should I have done it using MAT4 material?

How it affects my results?

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2017

    Hi,

     

    MAT4 can be used for free convection and conductivity problems. It provides fileds to control thermal conductivity, CP and heat transfer coefficient to support same. 

  • Beta
    Beta New Altair Community Member
    edited July 2017

    Hi Karth,

     

    As I understand your words, you want to do an Thermal Expansion analysis, so you should use MAT1 to do that. MAT1 is used in case you want to determmine the behavior of a structure under a thermal load that can cause high stress or displacement.

    MAT4 (or MAT5) is used when you want to do a heat Transfer analysis for unknown temperatures and fluxes under thermal loading.\

    so it totally depend on what do want to do.

    Cheers

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