General Mechanical

General Mechanical

temperature dependent coefficient of thermal expansion value

    • Praveen95
      Subscriber

      Hello,


      I have the temperature dependent CTE values varying from 22°C to 180°C, now suppose I want to give thermal BC of -40°C, what would  be the value of CTE in this case and how Ansys workbench Considers this.


      Thanks in advance 


      Best Regards


      Praveen

    • SaiD
      Ansys Employee

      Hello Praveen,


      Ansys Workbench will use the CTE value that is closest to -14 C (i.e. the CTE for 22 C) in this case. However, be sure to understand the difference between secant CTE and instantaneous CTE while defining the material properties. See Section 2.1.3 in: https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v201/en/ans_thry/thy_str1.html%23structempdep


       

    • Praveen95
      Subscriber

       Dear Sdeogeka,


      Thank you for your satisfactory reply.


      Best Regards


      Praveen

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