Hi All,
I'm simulating dynamic impact of FRP strengthened steel tubes in ABAQUS/Explicit. I have applied stiffness hourglass control and mass scaling of a part of my model containing continuum shell elements to avoid excessive element distortion/rotation. The energy produced for mass scaling is less than 2% of internal energy. Also the artificial energy is around 3% of internal energy. Could anyone please let me know that what else energy comparison I should check to confirm the accuracy of the simulation?
One more thing, Once I'm starting mass scaling of continuum shell elements, no element of continuum shell part is failing or removing from the model. without mass scaling continuum shell elements were failed/removed from the model with same impact mass and velocity.
Many Thanks.
ojective: Semi-automatic mass scaling
Application
Region: set (only continuum shell part. not whole model)
Scale: Throughout step
Type Scale to target time increment of : 2E-007
Scale element mass: if below minimum target
frequency: Every 5 increments
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