Learning Forum

[Jiazhi Zhang]

I want to reappear this result,but,the dyna always report an error when the second stage starts run

Microsoft PowerPoint - SPG_TwoStage3.pptx (lstc-cmmg.org)

Error 30073 (INI+73)
     negative or zero determinant - solid element 199545
       node 232133 ( 9.0727E+01, -2.3665E+00, 2.2197E+01)
       node 232283 ( 9.0820E+01, -2.4507E+00, 2.2286E+01)
       node 232433 ( 9.1423E+01, -2.7085E+00, 2.3203E+01)
       node 232273 ( 9.0498E+01, -2.5959E+00, 2.2622E+01)
       node 232134 ( 9.0672E+01, -2.4419E+00, 2.2305E+01)
       node 232284 ( 9.1035E+01, -2.5544E+00, 2.2411E+01)
       node 232434 ( 9.1407E+01, -2.7099E+00, 2.3277E+01)
       node 232274 ( 9.0900E+01, -2.7359E+00, 2.3400E+01)

 Error 30025 (INI+25)
     massless node 227400 on the surfa side of surface 2 type 7
     This could be lead to a segment with no parent element defined.

[Reno Genest]

Hello Jiazhi,

Are you using the latest LS-DYNA solver R14.1? Please make sure to use the latest solver. There have been many improvements to SPG and dynain in the last few releases. You can download R14.1 here:

SMP:

https://user:computer@ftp.lstc.com/user/ls-dyna/R14.1.0/

MPP:

https://user:computer@ftp.lstc.com/user/mpp-dyna/R14.1.0/

 

Note that LS-DYNA R15 should be released soon.

 

Also, are you rebuilding the model yourself or are you using the model provided by the CMMG group?

https://www.lstc-cmmg.org/spr

 

Let me know how it goes.

 

Reno.

[Jiazhi Zhang]

Sir，I’m excited to tell you it works, but it need too much times, If I change the mass shrinkage,it reappear error.Could you please see if this is normal

[Jiazhi Zhang]

[Jiazhi Zhang]

Thank you for your reply, Sir.I have already used the model from CMMG group and the latest LS-DYNA solver R14.1. I get the correct dynain and 1234spg. but when I want to finish Shear experiment simulation,it always shows error.