Mechanical strain

Karthic_22061
Karthic_22061 Altair Community Member
edited October 2020 in Community Q&A

Hi,

In Optistruct help  strain >> extras >>  MECH, THER, PLASTIC

MECH - Output Mechanical strain (in addition to total strain).
PLASTIC - Output Plastic strain (in addition to total strain).
 
Whats the difference between mechanical and Plastic Strain ?
vonmises strain is the total strain ?
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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018

    Hi Karthic,

     

    From Hooke's law Strain= (Sigma/E)+EpT(Thermal Strain). Here we have two parts thermal strain and mechanical strain. The first part is Mechanical strain.

     

    Plastic strain is calculated beyond yield point. 

  • Karthic_22061
    Karthic_22061 Altair Community Member
    edited January 2018

    Hi Prakash,

    Whether mechanical strain = elastic strain + Plastic strain

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