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Shell Theory — curved thin-structure mechanics L1-212

Structural MechanicsKoiter / Naghdi curved shell formulationsδ=5 · challengingL_DAG = 3.3📋 Stub — not mineable
📋

Unclaimed Principle — open for contribution

This Principle is declared in the catalog but has no reference solver, no pinned dataset, and is not registered on-chain. There is no reward pool. Submitting a cert against this Principle today will record the cert for reproducibility but pay zero PWM.

To claim it as a Bounty #7 contribution: open a PR adding (1) a reference solver, (2) ≥1 dataset pinned to IPFS, (3) updates to the L3 manifest with dataset CIDs. After verifier-agent triple-review, the founders' 3-of-5 multisig signs PWMRegistry.register() and the Principle becomes mineable.

Forward model E

Shell Theory — curved thin-structure mechanics forward model.

L-DAG

L.curvature -> L.mid_surface_strains -> L.shell_constitutive -> int.spatial
L.curvatureL.mid_surface_strainsL.shell_constitutiveint.spatial

Well-posedness W

Existence:
true
Uniqueness:
true
Stability:
conditional
κ:
360

Conditional stability; mismatch parameters dominate at Omega bounds.

Solvability C

Solver class:
MITC9-shell, DKT-shell, Shell-FEM-NN
Convergence rate q:
2
Complexity:
O(N log N) per iteration

Specs (0)

No L2 specs registered yet for this principle.