General Mechanical

General Mechanical

Topics relate to Mechanical Enterprise, Motion, Additive Print and more

Linearized stress in Frequency Response Spectrum analysis.

    • Sandra Pérez Barrio
      Subscriber

      I am trying to get linearised stresses in a combination of solutions where one of the load cases is a response spectrum and I don't get the linearised stress option. On the other hand, if I remove the response spectrum load case, it allows me to get linearised stresses. Any idea or option that could solve the problem? Thank you very much!!

    • Daniel Shaw
      Ansys Employee

      Linearized stresse are not supported for Response Specturm results.  

    • Chandra Sekaran
      Ansys Employee

      I don't think linearized stress makes sense in a response spectrum result. The response spectrum result is arrived at by squaring mode shapes; adding them up and taking the square root. So all the signs are lost for the component stresses. So this cannot be split into membrane and bending stresses.

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