Basic Tests

TensileTest

website : https://github.com/latug0/mfem-mgis-examples/tree/master/ex1

Description:

Warning

Complete the description

Problem Solved

Export the internal value named plasticity strain

Solver : Conjugate Gradient (default)
Preconditioner : Depends on the solver

The default is plasticity; behaviour law parameters are defined in the loaded library.

Element:
- Family H1
- Order 1

Run This Simulation

mpirun -n 10 ./UniaxialTensileTestEx -m cube.mesh -l  src/libBehaviour.so -b Plasticity -r Plasticity.ref -ls 1 -p 1 -v EquivalentPlasticStrain

Available options

To customize the simulation, several options are available, as detailed below.

Command line	Description
–mesh or -m	Specify the mesh “.msh” used (default = inclusion.msh)
–refinement or -r	The reference file (default = Plasticity.ref)
–behaviour or -b	Name of the behaviour law (default = Plasticity)
–internal-state-variable or -v	Internal variable name to be post-processed (default = EquivalentPlasticStrain)
–library or -l	Material library (default = src/libBehaviour.so)
–linearsolver or -ls	Identifier of the linear solver: 0 -> CG, 1 -> GMRES, 2 -> UMFPack (serial), 3-> MUMPS(serial), 2 -> HypreFGMRES (//), 3 -> HyprePCG (//), 4 -> HypreGMRES (//).
–order or -o	Finite element order (polynomial degree) (default = 2)
–parallel or -p	Run parallel execution (default = 0, serial)

Satoh

website: https://github.com/latug0/mfem-mgis-examples/tree/master/ex5

Description:

Modelling of a plate of length 1, in plane strain, clamped on the left and right boundaries and subjected to a parabolic thermal gradient along the x-axis. (source code 5)

Problem solved

This test models a 2D plate of length 1 in plane strain clamped on the left
and right boundaries and subjected to a parabolic thermal gradient along the
x-axis:

- the temperature profile is minimal on the left and right boundaries
- the temperature profile is maximal for x = 0.5

This example shows how to define an external state variable using an
analytical profile.

Solver : UMFPackSolver
Preconditioner : None

Elastic behavior law parameters :
[ parameters       , material ]
[ Young Modulus    , 150e9    ];
[ Poisson Ratio    , 0.3      ];
[ Temperature      , 293.15   ];

Element:
- Family H1
- Order 2

Run the simulation

Parameters are hardcoded in this example.

./SatohTest

Note

If you want to run this example in parallel, you’ll have to change the solver too.

Ssna303 Example (2D and 3D)

This tutorial deals with a 2D (plane strain) tensile test (ex2) and 3D (ex4) on a notched beam modeled by finite-strain plastic behavior. See the tutorial section.

• website 2D example: https://github.com/latug0/mfem-mgis-examples/tree/master/ex2

• website 3D example : https://github.com/latug0/mfem-mgis-examples/tree/master/ex4