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How to view the list of element IDs failed in each timesteps?

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Posts: 11
Topic starter
(@paulvazz)
Student
Joined: 3 years ago

I was running an impact analysis and I see some elements have failed in volumetric tensile strains (Refer to attached snapshot). I would like to see the element ID list and the reason for failure, namely, poor element quality or something else. How to view these failed element details in LS Dyna?

 Failed elems detail
3 Replies




Negative Volume
Posts: 641
Admin
(@negativevolume)
CEO
Joined: 6 years ago

Hi @paulvazz

Sorry for the late reply. Have you checked the d3hsp file? Also, this sounds like something that could be tinkered with in the *Control_output keyword. 

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Posts: 11
Topic starter
(@paulvazz)
Student
Joined: 3 years ago

Sorry for the late response. And Thank you for the reply. Which control output keyword should I use to get the failed element IDs list? Going through .d3hsp file, I see only the total number of failed elements and not element IDs in each time steps. 

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1 Reply
csuznxg
(@csuznxg)
Joined: 5 years ago

Paid Intern
Posts: 49

@paulvazz See "messag" file. You can find the contents like follows,

f a i l e d e l e m e n t r e p o r t time= 8.0953E-03
number of failed solid elements = 6
number of failed beam elements = 0
number of failed shell elements = 0
number of failed tshell elements = 0
solid element 133912 failed at time 8.0991E-03
solid element 134031 failed at time 8.0991E-03
solid element 137112 failed at time 8.0991E-03
solid element 137231 failed at time 8.0991E-03

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