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Hollow Tube Compression

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(@fadhleehamid)
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Joined: 7 years ago

I'm sorry. But i couldn't find it. 


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Negative Volume
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Try searching for “100 small” in both the d3hsp and message file. I’m unable you look at your gap file currently


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Posts: 26
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(@fadhleehamid)
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0.33286E-03 is the timestep for my "100 smallest timesteps". idk why it didnt show just now. So, multiply that with 1.05 = 0.349503E-3. So this will be my timestep for my circular tube of termination time 300000ms and d3plot 3000ms? Sorry for asking too many questions i really have no one who can guide me using LS DYNA.


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(@fadhleehamid)
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i got error termination upon using the implicit general keyword.. i tried with different DT and still error termination. help?

error

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(@negativevolume)
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I'm not sure what is going on there to be honest. Try removing the *Implicit General card and see if it still happens. You can also try drastically increasing the DTO to see if you can get it to run. Here's an example:

*CONTROL_IMPLICIT_GENERAL
$ imflag, dt0
$#  imflag       dt0    imform      nsbs       igs     cnstn      form    zero_v
         1     100.0         2         0         2         0         0         0

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(@fadhleehamid)
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i fixed it already. it was my ls manager that was the problem it was outdated. anyways, do you where i can find a good stress vs strain curve data for Aluminium?


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Okay nice! I do not know any specific place but a google search will probably be sufficient enough. There are many types of aluminum as well. 


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