Output elastic energy

[PengWei97]

Hello MOOSE users,
In the poly_grain_growth_2D_eldrforce.i input file, how to add a sub-module in the Auxkernel module to make the output cloud image file (*.e) show elastic energy?

And, the kernel responsible for elastic energy used in this input file is ACGrGrElasticDrivingForce, and the Residual is calculated as follows，
case Residual: return 0.5 * D_stress.doubleContraction(strain); // Compute the deformation energy driving force

Very grateful for help!

Best Regards
Wei Peng

[jessecarterMOOSE]

Perhaps you could add an ElasticEnergyMaterial (documentation). From there you could output the material property directly to the exodus file by setting outputs = exodus in the ElasticEnergyMaterial block, or you could use an AuxKernel like MaterialRealAux (documentation) to sample the elastic energy material.

[PengWei97]

Thank you for your answer, The problem has been solved.
I added sub-blocks to the materals block, the code is as follows,
[./elasticenergy] type = GGElasticEnergyMaterial args = 'gr1 gr2' outputs = exodus [../]
After that, F is displayed in the *.e file, which represents elastic energy.
Thanks again for your help.
Wei Peng