error in explicit dynamics

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  • Last Post 26 December 2018
mehul posted this 26 December 2018

error i am receiving: please help me remove this error

Valid equations of state for ANP tetrahedra are:
 
Linear
Polynomial
Shock
Porous
Compaction
P alpha
Rigid
Hyperelastic
User EOS

SandeepMedikonda posted this 26 December 2018

Please provide more details of your problem including setup, analysis settings and materials (inline pictures often help understand).

From what it looks like you are using the average nodal pressure tet element formulations in your model. This is the default element type used and it shouldn't be a problem. You can always try SCP (Standard Constant Pressure) or NBS (Nodal Based Strain) formulations from Analysis Settings > Type = Efficiency, Low Velocity, Quasi-static or Drop Test depending on the analysis you are running. However, I think the problem is coming from the Engineering Data due to the improper definition of the material model. Basically, it is looking for a volumetric response. Look at how the materials are defined in Engineering Data Sources>Explicit Materials. Test out AL 6061-T6 for example and see if it works.

Regards,
Sandeep
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