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Modeling of sandwich (honeycomb) composites in Ansys workbench or APDL if you like

  1. Jul 18, 2010 #1
    When I model a honeycomb type composite in workbench I tired modeling the core material as an orthogonal material type using solid tet elements and the aluminum face sheets as isotropic shell elements. I base the core material properties off of the honeycomb manufactures data for stiffness. using this approach I am able to get fairly accurate stress results when compared to hand calculations of the same simple problems (i.e. simple beam with distributed loading) but my deflections are completely wrong. I was hoping someone could give me insight on how to go about modeling sandwich composites in workbench......hopefully without paying another 50k for some type of composites modeler. Also I am getting a little better at APDL so if anyone wants to give advice based upon it I would be all ears.

    Also I get tons of penetration between the face sheet and core material, should I use a non-penalty based contact or will this mess things up even more.

    I hope this post makes sense....it is very late here and I am about to fall asleep on my keyboard.
     
  2. jcsd
  3. Jul 20, 2010 #2

    minger

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    Re: Modeling of sandwich (honeycomb) composites in Ansys workbench or APDL if you lik

    Rather than using contact elements, perhaps you could try coupling them (CP)?
     
  4. Jul 20, 2010 #3
    Re: Modeling of sandwich (honeycomb) composites in Ansys workbench or APDL if you lik

    Way better results doing in like that. Thanks again minger
     
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