Hello,
I want to use Calculix explicit for large deformation problem. I want to use a user subroutine similar to vuhard (in ABAQUS) to model the material behaviour. Calculix documentation metions uhardening, but there is nothing similiar to vuhard.
Is there a way to do this?
Hello,
I have to export stiffness and mass matrices from Abaqus (dynamical simulation)
and I have been using the commands *Matrix Generate and *Matrix Output
I need to export the matrices for different instants of time (time intervals) and I have noticed that the entries
of the MASS matrices are not equal at different time points.
I want to set the contact pressure as a input in the routine but I don't know if there is a subroutine allows reading the contact pressure.
Thanks a lot for answering the question!!!
(in terms of the computational method)
Hi Guys,
I have a number of SDV values that I integrate over the volume of a specimen for each time increment. The simulations I'm running can have a few hundred time increments and the arrays for each SDV value has about 0.5 million elements. I utilize numPy for all calculations, which is fast, but most of the script time is taken up reading values from odb to numpy arrays. Slice array transfers aren't supported for odb access, so I am currious if anyone has found an efficient method of reading large amounts of data from odb to arrays?
Can anyone guide me how to mesh solid and shell 3d hemisphere with hex dominant approach in ansys mechanical APDL?
I found no such verification manual for 3d hemispherical meshing in ansys. What method should be applied and what element should be chosen appropriately to mesh this structure?
I have attached screen shot for your understanding of my problem.
Your response will be highly appreciated.
Greetings,
I wrote the following subroutine to extract nodal stress values. It perfectly writes down the nodal stresses in MSC.Marc installed for Linux; however, when I try to implement this subroutine in MSC.Marc installed for Windows using intel(R) Visual Fortran compiler, error "forrt1: severe <157>: Program Exception - access violation" occurs.
The subroutine is:
subroutine impd(lnode,dd,td,xord,stnod,f,v,a)
Any idea how to extract eigenvector for each mode in .odb file?
I have the Eigenvalue, Freq and generalized mass.
The problem is I need to extract the eigenvector (3Nx3N) which mean that the first 6 should be zero of all mode which will be use to calculate the Boltzman factor (B-Factor) for my protein.
Regards,
Christian