ERROR # 1501 ***

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

Hello everyone,

 

I have a question about error 1501:  ' for material id = 1 referenced from property id = 1. Either E or G must be explicitly provided for MAT1. Otherwise singular material is produced.'.

I'm using solver Optistruct.

Could you please give me somes advices?

Thank you so much.

 

Best regards,

Lara

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Hi Lara,

     

    G or Nu will be calculated basd on input. If you remember of Solid mechanics E= 2G(1+Nu).

     

    So you need atleast two parameters to calculate the third. If you furnish all three make sure they match with the equation :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'> 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Hi Prakash, 

     

    Thank you for your advice. :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20' /> I've just corrected the value of G.

    Howerver, the error 1501 still exists.

    Could you please give me some ideas?

    Thank you so much.

     

    Lara

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Hi Lara,

     

    Instead of giving all three you can just provide two material parameters. But make sure you enter atleast two parameters from E, G and NU

     

    If you still get the error, please share the model file. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    It worked. Thank you Prakash :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20' />

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