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What is this?
A sanitized public set of 25 skills for OpenAI Codex, covering Abaqus UMAT/VUMAT development: constitutive mechanism routing, return mapping, tensor interfaces, state contracts, damage audits, tangent verification and hierarchical validation.
A sanitized public set of 25 skills for OpenAI Codex, covering Abaqus UMAT/VUMAT development: constitutive mechanism routing, return mapping, tensor interfaces, state contracts, damage audits, tangent verification and hierarchical validation.So is this a Fortran code library, or what do I actually get?Not a code library: 25 skills, each a scoped workflow/audit playbook for one mechanism boundary (routing, Voigt tensors, PROPS/STATEV contracts, J2, Tsai-Wu, wood damage) — no Fortran sources or engineering files ship in the repo.
Not a code library: 25 skills, each a scoped workflow/audit playbook for one mechanism boundary (routing, Voigt tensors, PROPS/STATEV contracts, J2, Tsai-Wu, wood damage) — no Fortran sources or engineering files ship in the repo.How do I install the skills into Codex?Clone the repo and selectively copy the top-level skill directories you need, or install a single directory with Codex's skill installer, then start a new Codex task so the skill catalog reloads.
Clone the repo and selectively copy the top-level skill directories you need, or install a single directory with Codex's skill installer, then start a new Codex task so the skill catalog reloads.Do I need Abaqus itself to make use of these?The skills themselves only need Codex. To build and run the UMAT/VUMAT subroutines they guide, you need your own Abaqus setup — the sanitized repo deliberately ships none of it.
The skills themselves only need Codex. To build and run the UMAT/VUMAT subroutines they guide, you need your own Abaqus setup — the sanitized repo deliberately ships none of it.Can I trust the results for real engineering decisions?They are modeling, implementation and verification workflows, not certified material models — any UMAT used for engineering decisions must be re-validated for your Abaqus version, element type, parameter and mesh ranges.
They are modeling, implementation and verification workflows, not certified material models — any UMAT used for engineering decisions must be re-validated for your Abaqus version, element type, parameter and mesh ranges.What material behaviors do the 25 skills cover?J2 isotropic-hardening radial return, Hill48 calibration audits, Tsai-Wu parameter audit and damage state machine, CPA implicit return mapping, explicit yield intersection, adaptive substepping, drift correction, DDSDDE finite-difference tangent audits, hierarchical validation, plus a dedicated wood continuum-damage-mechanics chain: multimode state, thermodynamic closure, damaged stiffness, crack-band and nonlocal regularization, and a fiber-orientation pipeline.
J2 isotropic-hardening radial return, Hill48 calibration audits, Tsai-Wu parameter audit and damage state machine, CPA implicit return mapping, explicit yield intersection, adaptive substepping, drift correction, DDSDDE finite-difference tangent audits, hierarchical validation, plus a dedicated wood continuum-damage-mechanics chain: multimode state, thermodynamic closure, damaged stiffness, crack-band and nonlocal regularization, and a fiber-orientation pipeline.Why does GitHub list this repo as 100% PowerShell?Linguist ignores Markdown, YAML and TSV, and an early version only had two PowerShell release scripts. The repo now ships both a cross-platform Python toolchain and a Windows PowerShell entry enforcing the same publication gate.
Linguist ignores Markdown, YAML and TSV, and an early version only had two PowerShell release scripts. The repo now ships both a cross-platform Python toolchain and a Windows PowerShell entry enforcing the same publication gate.Who should pick these skills up?Engineers and researchers implementing UMAT/VUMAT constitutive models in Abaqus who want a coding agent to follow disciplined routing, state-contract and audit workflows rather than improvising subroutine code.
Engineers and researchers implementing UMAT/VUMAT constitutive models in Abaqus who want a coding agent to follow disciplined routing, state-contract and audit workflows rather than improvising subroutine code.What are similar projects?codex-claude-academic-skills, pyraimd, AI-drama-pound, circuitRF, audit-repo, cell-lct, OpenCourant, box3d
codex-claude-academic-skills, pyraimd, AI-drama-pound, circuitRF, audit-repo, cell-lct, OpenCourant, box3dWhich topics is it in?audit, engineering, physics, scientific-computing, powershell, codex-skill, simulation, best-practices, skill, developers, codex, python
audit, engineering, physics, scientific-computing, powershell, codex-skill, simulation, best-practices, skill, developers, codex, python