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hi My Master
I want analyse Droping things  with Optisruct.
the thing is Solid (Steel) with Velocity and impact to a Plate(2D or
3D , Steel with 1mm Thickness)
Is it possible Analize with Optisruct? and I dont know how to define
"Load Step" and "Load collector"
Best Regards


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Hi Korosh,

Drop test is a typical kind of explicit analysis which has to be solved in RADIOSS solver, which is the leading structural analysis solver for highly non-linear problems.

As you are a beginner, I recommend you to go through Altair's Learning and Certification Program where you can learn the basics of explicit analysis. You can access at: http://certification.altairuniversity.com/

Also, please download our ebook on RADIOSS (Crash Analysis With RADIOSS – A Study Guide) which contains all the theoretical aspects of RADIOSS. You can download at:http://www.altairuniversity.com/free-ebooks-2/free-ebook-crash-analysis-with-radioss-a-study-guide/

You can also access our video tutorial series on RADIOSS at: https://www.youtube.com/watch?v=HGsA5RwddLs&list=PL1u26y75SCrA_BOCLaSewVCNY7xRvCTnA


Attached is a tutorial for drop test and the model file is also attached for practice. 



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