김경종
77 lines
3.0 KiB
Markdown
77 lines
3.0 KiB
Markdown
---
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type: concept
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title: "Plasticity Benchmark and Input Data Cases"
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complexity: intermediate
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domain: computational-mechanics
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created: 2026-06-02
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updated: 2026-06-02
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address: c-000141
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aliases:
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- plasticity verification cases
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- plasticity input data cases
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tags:
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- concept
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- finite-element-method
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- plasticity
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- verification
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- implementation
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status: current
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related:
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- "[[Finite Element Plasticity Program Architecture]]"
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- "[[Finite Element Modeling and Convergence Checks]]"
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- "[[Finite Element Plasticity]]"
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- "[[Elasto-Plastic Mindlin Plate Analysis]]"
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- "[[Transient Dynamic Elasto-Plastic Analysis]]"
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sources:
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- "[[Finite-Elements-in-Plasticity-Theory-and-Practice|Finite Elements in Plasticity: Theory and Practice]]"
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source_refs:
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- source: "[[Finite-Elements-in-Plasticity-Theory-and-Practice|Finite Elements in Plasticity: Theory and Practice]]"
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raw_path: ".raw/FiniteElementsinPlasticityTheoryandPractice/"
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raw_files:
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- "FiniteElementsinPlasticityTheoryandPractice_054.md"
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- "FiniteElementsinPlasticityTheoryandPractice_005.md"
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- "FiniteElementsinPlasticityTheoryandPractice_052.md"
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- "FiniteElementsinPlasticityTheoryandPractice_022.md"
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md_indices:
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- 54
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- 5
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- 52
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- 22
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match: "heuristic-heading-keyword"
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confidence: high
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---
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# Plasticity Benchmark and Input Data Cases
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## Definition
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Plasticity benchmark and input data cases are small finite element models used to verify elasto-plastic, elasto-viscoplastic, structural plasticity, and dynamic plasticity implementations.
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## Source Cases
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The appendices in [[Finite-Elements-in-Plasticity-Theory-and-Practice|Finite Elements in Plasticity: Theory and Practice]] document input data for several program families:
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- `PLANET` for elasto-plastic plane and axisymmetric solids.
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- `VISCOUNT` for elasto-viscoplastic two-dimensional solids.
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- `MINDLIN` and `MINDLAY` for nonlayered and layered elasto-plastic Mindlin plates.
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- `DYNPAK` and `MIXDYN` for transient dynamic elasto-plastic or viscoplastic analysis.
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The cases include element selections, material parameters, yield-criterion flags, load data, boundary conditions, and output expectations.
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## Why It Matters
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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.
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## Harness Use
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- Start with single-element elastic and plastic patch cases.
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- Add small plane stress, plane strain, and axisymmetric plasticity cases.
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- Add beam and Mindlin plate section-yielding cases.
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- Add rate-dependent and transient dynamic cases only after the static plasticity state update is stable.
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- Record tolerances separately for nodal, element, and stress/state outputs.
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## Sources
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- [[Finite-Elements-in-Plasticity-Theory-and-Practice|Finite Elements in Plasticity: Theory and Practice]]
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