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LS Dyna

LS Dyna

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Prestressing force

    • February 20, 2026 at 9:33 pm
      akarz029
      Subscriber

      Hello all,

      I am trying to model prestressed concrete member and was wondering if you can help me with how to apply the prestressing force. I am using the mat cable for the strands which has an option of initial tensile force so thought that would be enough to apply. However some papers suggest using thermal method by introducing keywords such as MAT_ADD_THERMAL_EXPANSION and LOAD_THERMAL_LOAD. I am not sure which method is the correct way but if the second method is the one then I am getting error in the process. Please see attached screen shot for the first method.

      Thanks for your help

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