refact: Contact Mech - dispatch scaling wrt to fracture element type - #4083
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jafranc wants to merge 8 commits into
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refact: Contact Mech - dispatch scaling wrt to fracture element type#4083jafranc wants to merge 8 commits into
jafranc wants to merge 8 commits into
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jafranc
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type: cleanup / refactor
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dkachuma
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Jun 15, 2026
jafranc
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August 27, 2026 13:33
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August 27, 2026 13:33
jhuang2601
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Aug 27, 2026
| setApplyDefaultValue( 5.e-02 ). | ||
| setDescription( "Tolerance for the sliding check" ); | ||
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| registerWrapper( viewKeyStruct::symmetricString(), &m_isAnisotropic ). |
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Duplicate input key registration for both m_isAnisotropic and m_symmetric?
| stiffDiagApprox[ i ][ j ] = E / ( ( 1.0 + nu )*( 1.0 - 2.0*nu ) ) * 4.0 / 9.0 * ( 2.0 - 3.0 * nu ) * charLength; | ||
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| //TODO (jafranc) once stabilized, get rid of this ugly ternary | ||
| stiffDiagApprox[ i ][ j ] = m_isAnisotropic ? E / ( ( 1.0 + nu )*( 1.0 - 2.0*nu ) ) * 4.0 / 9.0 * ( 2.0 - 3.0 * nu ) * volume / bbox[j] / bbox[j] |
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Potential divide-by-zero issue and add a lower bound guard for bbox
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Good catch ! I check for that earlier now, though such zero volume elements should not pass sanity checks in GEOS.
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ci: run integrated tests
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Aug 28, 2026
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Thank you @jhuang2601. Good catch you made.
This might need a rebaseline as eventhough the behavior is opt-in on a XML parameter, the default is reverted to what was in Matteo original branch and might not be in sync with baselines anymore.
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In [A]LM methods, we rely on computed tolerances to decide on the slip/stick/open dispatch. Those are strongly geometry related in their estimation of the local inverse of the stiffness from left/right neighbors. Originallym the method was implemented with hexahedron/quad mixed dimensionality assumption.
Now we are running with mixed and tetra meshes. The original assumption tends to render a stiffer system. This PR propose dispatch with old behavior for Hex/Quad and right angle Tetra/Triangle approximation for triangles. (Extensible if needed_
Extend to LM and LM w/ bubblewill be done in [wip] refact: Fit ALM as LM in the Poromechanics hierarchy #4101 if applied