@yoshimori3456 : Here , the error is specific on *MAT_72 . i had look into the file you had shared . the material data is not complete. That's the r...

@negativevolume : Thanks for the reply . . . Appreciate it I was not able to resolve the issue with the version we had . Also the wear analysis m...

1) Check for duplicates 2) Check for free rigids or other elements 3) Check all contacts again 4)check material properties 5) sometimes part g...

@mr_lazlo : there are two methods to impart prestress in lsdyna : 1. Control dynamic relaxtion 2. Interface springback to get dynain. It depen...

hi , just by changing the units , there should be no change in the contact behaviour. check for Master and Slave definition. Also try to use MOR...

hi LuBo, An equation of state (EOS) is equivalent a fluid model. Specifically, an EOS is a fluid model that takes a molar composition (z) and predic...

include * CONTROL_SPH card . . . ( here NMNEIGH should be varied accordingly ) Also your Lsdyna Version matters.

also check out this link which is similar to your work for additional details :

impact between a projectile and a plate is highly non-linear problem and requires a great care to achieve convergence . instead of using 2D axisymmetr...

use *CONTACT_INTERIOR or USE Single surface contact as well

Eroding contact should work fine , check the parameters in the contact card.

your statement that companies use primer / hyperworks tools ONLY is partially correct. while many automobile companies use mentioned tools in addition...

mat_add_erosion works well with Metallic materials. it works on : Stress dependent erosion strain dependent erosion Time dependent erosion