June 10, 2020 at 6:53 amMjaimanSubscriber
I am trying to conduct a Carbon Fibre helmet assembly drop test using explicit dynamics autodyne solver and getting the following error message- "Only linear and rigid equations of state are valid for shells".
The helmet has two parts - Shell (ACP) and polyurethane foam (Ogden 3rd Order Hyperelastic material model). I have coupled the systems as shown in the picture below.
Please if anyone has come across this error let me know what I might be pursuing wrong?
Here is the solver output message:
Checking model setup.....Please wait
Generating External Faces ...... please wait
ERROR! Cannot run problem. Invalid equation of state with SHELLS.
Valid equations of state for SHELLS are:
Cannot run problem. Invalid failure model with SHELLS.
Valid failure models for SHELLS are:
User failure #1
Finished model setup with errors...
I tried suppressing failure constants for composite materials but did not find any success.
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