Hi, everyone!
Now I am starting the research on cardiac mechanical modelling. The user defined function "UMAT" was used to implement the anisotropic hyperelastic Fung-type model . Now I come across some difficulties to write UMAT subroutine. Can someone recommend me some useful codes that can let me know how to write it.
Hi All,
I am trying to model the inflation of an enclosed elastic cylinder. The only example I have came close to in the Abaqus support documentation is the air bag inflation test. However, even reading the documentation, I am still unsure on how to model the airbag before an inflation force is applied. Can someone help me with this? You can also e-mail directly: manpreet.puri [at] strath.ac.uk.
Hi experts,
I want to do simulation of granular media. I want to know wether ABAQUS has such models like Hertz contact model or others to do granular flow simulations.
Thanks in advance,
Best,
Ram
Hi All,
Recently I am doing the vehicle analysis in ABAQUS explicit. I defined the reference point in order to get the reaction force during loading. However, when I output the reaction force in the loading direction, the value is cyclic. I applied the velocity boundary condition and defined the amplitude. But what I thought is the reaction force should be constantly increase to some certain value and then decrease (due to damage defination), other than change with a period.
Dear everyone,
I try to run one case study that I got from Abaqus Verification Manual (4.1.37 Vumat : Rotating Cylinder).
But it doesn’t work, it always show an error ‘Node set assembly__m22 has not been defined’.
Can anyone please tell me how to fix this error?
I have already attached the inp-file and subroutine-file with this post.
(The present Abaqus version that my university use are 6.10 and 6.11)
Thank you very much indeed.
