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General Mechanical

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  3. 3-d simulation of sandwich panels vs layered sections approach.

3-d simulation of sandwich panels vs layered sections approach.

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    • May 27, 2025 at 10:56 am
      tanmay.singhal
      Subscriber

      In the layered section approach,I am modelling [ 0/45/-45/90/honeycomb/90/-45/45/0 ] 

      For 3-d simulation, I am modelling honeycomb using equivalent plate theory ( properties of honeycomb same as used in above simulation )and CFRP skins as layered sections.

      Bonded contact between the equivalent plate and layered sections.

      I am getting a difference of more than 25 percent between these simulations in modal analysis.

      It is a cantilevered plate BC.

    • May 29, 2025 at 3:49 pm
      Ravikrishna K V S
      Ansys Employee

      what is the kind of contact and Ansys version used ?

    • May 30, 2025 at 9:27 am
      Thomas Hirche
      Ansys Employee

      Hi Tammay,

      there are multiple potential root causes which we cannot pin point without haveing more information about your model. As commented already, contact formulation might be one of them. Furthermore you might face mesh discretisation sensitivities, incorrect shell element offset for the hybrid model (solid and shell). However, it seems this question isn't directly related to the training materials usage and therefor I'd like to encourage you to file a request through our Technical Support. This way you can also share your model which we can review then.

       

      Regards

      Thomas 

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