pjay
@pjay
Paid Intern
Joined: September 26, 2019 6:26 pm
Last seen: November 16, 2020 1:41 pm
Topics: 8 / Replies: 19
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RE: LS Dyna Training Advice

@Jacob_22, personally I have not taken any courses on LS-DYNA but rather just struggled through basic examples presented on Youtube and extended that ...

3 years ago
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RE: Rigid Part Contact Not Behaving as Expected

@negativevolume, Yes the long simulation times seem to be a product of a long simulation time (i.e. 5.15s) and a small time step (~1e-6s) from the she...

4 years ago
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RE: Rigid Part Contact Not Behaving as Expected

@negativevolume, I never did figure out how to fix this issue other than changing the part to *MAT_ELASTIC. The only other options that I looked into ...

4 years ago
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RE: Generic question about when to use a filter for XY data in ls-prepost

@negativevolume, thank you for the detailed response and the NASA paper is a great paper on the topic!

4 years ago
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RE: Surface Elevation Probe for Dam-Break Wave using ALE Solver

@negativevolume oddly enough ls-prepost crashes when I try to use the fringe component "Ndv" for my ALE model. What I have found is that if I just add...

4 years ago
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RE: Rigid Part Contact Not Behaving as Expected

@negativevolume Good to know! If I was not clear I meant changing the falling debris to *MAT_ELASTIC and keeping the plate as *RIGID_WALL_PLANAR. The ...

4 years ago
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RE: Rigid Part Constrained by *RIGIDWALL Card

What ended up working was setting in the CONTROL_CONTACT card RWPNAL = 1.0, this only works if the RIGID_WALL_PLANAR card is fixed in space.

4 years ago
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RE: LS DYNA MPP ERROR

Typically I have seen this error for clusters when you don't specify enough RAM, I know for my MPP simulations I set Memory = 500M and Memory2 = 500M ...

4 years ago
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RE: How to avoid contact force decreasing caused by MAT_ADD_EROSION in LS-DYNA?

One of the key factors with the SPH model is particle spacing. I cannot speak to your simulation specifically but for dam-break wave generated impacts...

4 years ago
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RE: SPH Injection Analysis

@csuznxg not luck getting the SPH_INJECTION card to work. I ended up not using it but I will be circling around back to this problem in the near futur...

4 years ago
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RE: Activate Parts Part Way Through Simulation

@negativevolume Currently I don't care about the response of the debris but we are trying to investigate the impact force it generates on a structure....

4 years ago
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