MultiPhysicsVault/wiki/concepts/Plasticity Benchmark and Input Data Cases.md

type, title, complexity, domain, created, updated, address, aliases, tags, status, related, sources, source_refs

type	title	complexity	domain	created	updated	address	aliases	tags	status	related	sources	source_refs
concept	Plasticity Benchmark and Input Data Cases	intermediate	computational-mechanics	2026-06-02	2026-06-02	c-000141	plasticity verification cases plasticity input data cases	concept finite-element-method plasticity verification implementation	current	Finite Element Plasticity Program Architecture Finite Element Modeling and Convergence Checks Finite Element Plasticity Elasto-Plastic Mindlin Plate Analysis Transient Dynamic Elasto-Plastic Analysis	Finite-Elements-in-Plasticity-Theory-and-Practice	source raw_path raw_files md_indices match confidence Finite-Elements-in-Plasticity-Theory-and-Practice .raw/FiniteElementsinPlasticityTheoryandPractice/ FiniteElementsinPlasticityTheoryandPractice_054.md FiniteElementsinPlasticityTheoryandPractice_005.md FiniteElementsinPlasticityTheoryandPractice_052.md FiniteElementsinPlasticityTheoryandPractice_022.md 54 5 52 22 heuristic-heading-keyword high

Plasticity Benchmark and Input Data Cases

Definition

Plasticity benchmark and input data cases are small finite element models used to verify elasto-plastic, elasto-viscoplastic, structural plasticity, and dynamic plasticity implementations.

Source Cases

The appendices in Finite-Elements-in-Plasticity-Theory-and-Practice document input data for several program families:

• PLANET for elasto-plastic plane and axisymmetric solids.
• VISCOUNT for elasto-viscoplastic two-dimensional solids.
• MINDLIN and MINDLAY for nonlayered and layered elasto-plastic Mindlin plates.
• DYNPAK and MIXDYN for transient dynamic elasto-plastic or viscoplastic analysis.

The cases include element selections, material parameters, yield-criterion flags, load data, boundary conditions, and output expectations.

Why It Matters

For a custom solver, these cases are useful as a verification pattern even when the original FORTRAN programs are not reused. A good plasticity test harness should compare displacement, reactions, element forces, stress components, and plastic state variables against a reference solver or a trusted benchmark.

Harness Use

• Start with single-element elastic and plastic patch cases.
• Add small plane stress, plane strain, and axisymmetric plasticity cases.
• Add beam and Mindlin plate section-yielding cases.
• Add rate-dependent and transient dynamic cases only after the static plasticity state update is stable.
• Record tolerances separately for nodal, element, and stress/state outputs.

Sources

• Finite-Elements-in-Plasticity-Theory-and-Practice