Drop Test without LS-DYNA
Drop Test without LS-DYNA
(OP)
Hi,
Would like to know whether it is possible to do a drop test analysis just using Ansys Structural? Has anyone tried before? What is the limitations and how is it different from using LS-DYNA?
Thanks & Regards.
Would like to know whether it is possible to do a drop test analysis just using Ansys Structural? Has anyone tried before? What is the limitations and how is it different from using LS-DYNA?
Thanks & Regards.





RE: Drop Test without LS-DYNA
1/ model size massively affects your run time
2/ the implicit time integration method isn't suited to such discontinuous events with the time step becoming very, very small (since LS-DYNA is an explicit time integration code, small time steps better suit the algorithm)
3/ as with any transient analysis, you need to introduce initial conditions for the drop test, including initial displacement (u0) and initial velocity(v0) - these have to be specified.
4/ you can also use the IC command.
Be very careful!
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