ABAQUS Explicit

[mj345]

Hello All,

Thank you everyone for the quick answers. How can I decide weather given problem (like drop test)comes under the Explicit/implicit?
Your response is appreciated.

Kind regards,

 

[FEA way]

There’s no universal criterion to determine this, it really depends on the case. If you examine the advantages and disadvantages of these two solvers you will be able to judge which one is more appropriate for specific problem.

In general explicit works much better than standard in case of high speed dynamic events. It’s also better for large deformations and complex contact conditions. Its ability to handle severe nonlinearities makes it very useful for quasi-static analyses of metal forming processes as well. But it has some disadvantages that make implicit better for low-speed, mildly nonlinear problems.

 

[mj345]

Hello FEA way,

Thank you for all your quick responses.I have a question for you.
How to record acceleration at node after impact test using explicit analysis?.

Kind regards,

 

[FEA way]

You can request acceleration as history output for selected node set before the analysis or use Create XY Data —> ODB field output and manually select a node in viewport after the analysis (during postprocessing).

 

[mj345]

I did that and observing acceleration in millions, which does not making any sense.

 

[FEA way]

Check all units in your model (including dimensions, material properties, loads and so on). Make sure that they are consistent.