Computational Mechanics Forum

I would like to try Code Aster or Salome Meca FEM on MS-Windows.  The problem for me is that I can't find a document that gives an overview of what each part does. 

I am used to ABAQUS that comes together with "CAE" for creating input files and visualising the results from an "Output DataBase" (ODB).  I have used the ABAQUS solver separate from CAE for some problems that it cannot create (I used Matlab to write the input file) so have no problem with the idea that different bits of code do different things.

In Abaqus, when the material response is almost incompressible, Abaqus/Standard offers a “mixed” formulation.

The Abaqus documentation, available here:

https://abaqus-docs.mit.edu/2017/English/SIMACAEMODRefMap/simamod-c-inp…

states the following:

Certain keywords must be used in conjunction with other keywords; forexample, the *ELASTIC and *DENSITY keywords must be used in conjunction with the *MATERIAL keyword. These related keywords must be grouped in a block in the input file; unrelated keywords cannot be specified within this block. 

Hi, 

I am doing some study with viscoelastic energy dissipation. I have a basic question for ABAQUS. 

In ABAQUS, I notice there is a function to calculate Energy dissipated by creep, swelling, and viscoelasticity (ALLCD). You are able to plot energy change with time. 

But want to know how ABAQUS calculates energy dissipation with time? What equation does it use?

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Hi,