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026-G04 targeted blocker closure

This artifact records the internal blocker closure executed from source SHA 171bc93803690fb70b8831f17db81f60f4401ea6. It does not close G04 and does not alter the maturity of any element or analysis route.

Analytical declarations

The 20 already configured analytical cases remain PASS. The 30 previously declared but unconfigured analytical records were reviewed individually and classified NOT_APPLICABLE under TOL-026-ANALYTICAL-001: the available constrained_free_dof oracle requires a one-element isotropic continuum model with one free-node UX load. Multi-element meshes, mixed-constraint static models, shells, BEAM2, and orthotropic material cases do not satisfy those preconditions. No missing oracle was converted into PASS.

New mesh policy evidence

qualification/0_2_6/g04_mesh_refinement_study.json declares the observable q (mean end-face UX), dimensional q_ref = F_total*L/(E*A), four compatible HEX8 levels, and G04-POL-003 before execution. The measured q values are:

level q (m)
1 4.333333333333333e-09
2 4.486791757449624e-09
4 4.551780487472014e-09
8 4.571463783673658e-09

The final adjacent change is 0.004133492202345242, hence PASS against the Owner threshold <= 0.01. The dimensional reference is recorded as a scale; the study does not claim an exact three-dimensional end-effect solution.

Invalid inputs and route boundaries

Six dedicated cases reject deterministically on two executions: invalid connectivity, incomplete material, insufficient supports, incoherent active DOF, degenerate TET4 geometry, and non-positive BEAM2 area. All are expected failures with explicit stable error classes/messages. The prior RBE2-plus-spring case has no DISCRETE element, so RBE2 = DIAGNOSTIC_ONLY and DISCRETE = NOT_APPLICABLE.

Code_Aster and CalculiX are both SKIPPED_UNAVAILABLE; no external PASS is claimed. Therefore the resulting proposal is PASS_WITH_LIMITATIONS, with official G04 closeout still deferred to Owner review.