LS-DYNA on not memory issue

I ran a simulation on cluster and the total simulation time is 3s. Finally it shows that:

Max. Memory reqd for implicit sol: max used        0

 Max. Memory reqd for implicit sol: incore         0

 Max. Memory reqd for implicit sol: oocore         0


 Memory required to complete solution (memory=  1290K memory2=  154K)

     Minimum  143K on processor   4

     Maximum  154K on processor   1

     Average  148K


 Additional dynamically allocated memory

     Minimum  2125K on processor   0

     Maximum  2317K on processor   1

     Average  2261K


 Total allocated memory

     Minimum  2278K on processor   0

     Maximum  2470K on processor   1

     Average  2409K


Since the material is purely hyperelasticity, we can condense the time. When I condensed the same simulation to 0.01s, the simulation runs good. there is no problem.


Since I need to run it using 3s rather than 0.01 in the end, Could you give me help?


The attachment is my message file by my cluster.



Thank you!


Teng Long


Answers

  • mjimji Forum Coordinator

    3 sec is too long for explicit solver, you might want to use mass scaling or velocity scaling.

  • Since I need will add viscoelasticity effect, so with strain rate = 10%/s with strain = 30%, so I need to have a test on 3s for the hyperelasticity material first to estimate the total time I need to use and then add the viscoelasticity.

    Do you mean LS DYNA explicit solver run for 3s?

    Thank you!

  • I don't agree with that explicit dynamics solver can not ran for 3s, so I would appreciate that a LS DYNA, ANSYS technique engineer can answer my question.

    Thank you!

Sign In or Register to comment.