cai-aa/text-to-cae/abaqus-static-analysis
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Complete workflow for static structural analysis. Use when analyzing stress, displacement, or reaction forces under constant loads. For strength and stiffness evaluation.
Install
npx vskill@latest install cai-aa/text-to-cae/abaqus-static-analysisSKILL.md
Abaqus Static Analysis Workflow
Complete workflow for static structural analysis - stress, displacement, and reaction forces under constant loads.
When to Use This Skill
Route here when user mentions:
- "stress analysis", "structural analysis"
- "how much will it deflect", "displacement"
- "is this strong enough", "strength check"
- "factor of safety", "safety factor"
- "reaction forces", "support loads"
- "simulate a load on this part"
Route elsewhere:
- Time-varying loads, impact, vibration →
/abaqus-dynamic-analysis - Natural frequencies, resonance →
/abaqus-modal-analysis - Temperature effects, thermal stress →
/abaqus-coupled-analysis - Heat transfer only →
/abaqus-thermal-analysis - Parts touching, friction →
/abaqus-contact-analysis
Workflow Steps
Execute these skills in order:
| Step | Skill | Purpose | |
|---|---|---|---|
| 1 | /abaqus-geometry | Create part and assembly | |
| 2 | /abaqus-material | Define material properties | |
| 3 | /abaqus-mesh | Generate finite element mesh | |
| 4 | /abaqus-bc | Apply supports and constraints | |
| 5 | /abaqus-load | Apply forces and pressures | |
| 6 | /abaqus-step | Configure analysis step (optional - default is fine) | |
| 7 | /abaqus-job | Run the analysis | |
| 8 | /abaqus-odb | Extract results |
What to Ask User
Required Information
| Input | What to Ask | |
|---|---|---|
| Geometry | "What are the dimensions? (e.g., 100x50x20 mm)" | |
| Material | "What material? (Steel, Aluminum, or custom E/v)" | |
| Supports | "How is it supported? (fixed face, pinned points, rollers)" | |
| Loads | "What loads? (force magnitude, location, direction)" |
Optional (Has Defaults)
| Input | Default | Ask If | |
|---|---|---|---|
| Mesh size | Auto-calculated | Stress concentrations present | |
| Element type | C3D8R | Complex curved geometry | |
| Nonlinear | OFF | Large deformation expected |
Key Decisions
Linear vs Nonlinear Analysis
| Condition | Setting | When | |
|---|---|---|---|
| Small deformation, linear material | nlgeom=OFF | Displacements < 1% of part size | |
| Large deformation or rotation | nlgeom=ON | Thin structures, rubber, cables | |
| Yielding expected | nlgeom=ON + Plasticity | Stress > yield strength |
Default: Start with linear. Switch to nonlinear if convergence issues or large deformation.
What Results to Extract
| User Goal | Output Variables | Acceptance Criteria | |
|---|---|---|---|
| Strength assessment | S (stress), MISES | MISES < yield stress | |
| Stiffness check | U (displacement) | Max deflection acceptable | |
| Support sizing | RF (reaction force) | Reactions match applied loads |
Validation Checkpoints
After Each Step
| Step | What to Verify | |
|---|---|---|
| Geometry | Part has cells, no error messages | |
| Material | Section assigned to all cells | |
| Mesh | Node count OK (Learning Edition: <=1000) | |
| BCs | At least one fixed constraint exists | |
| Loads | Applied to correct surface/point | |
| Job | Completes without errors in .sta file |
Results Sanity Checks
| Check | Expected | |
|---|---|---|
| Reaction force sum | Approximately equals applied loads | |
| Displacement magnitude | Physically reasonable | |
| Stress pattern | Follows logical load path | |
| Max stress location | At expected concentration points |
Troubleshooting
| Error | Cause | Solution | |
|---|---|---|---|
| "Zero pivot" | Rigid body motion | Add more BCs to constrain all 6 DOFs | |
| "Negative eigenvalue" | Buckling or instability | Check BCs, may need stabilization | |
| "Too many increments" | Load too large | Reduce load or use more increments | |
| "Equilibrium not achieved" | Convergence failure | Try smaller initial increment | |
| "Memory exceeded" | Mesh too fine | Increase element size |
Feedback Loops
- Mesh fails: Return to geometry, add partitions or simplify
- Zero pivot error: Return to BCs, ensure all rigid body modes constrained
- Unreasonable results: Verify material properties, check load direction/sign
- Stress too high: Either design issue (expected) or incorrect BC/load setup
Code Patterns
For API syntax and code examples, see:
Security
- Security scanPassed, 95 of 100Pattern checks on the skill's files.
- Model reviewPassed
Quality evaluation
- Task evaluationNot runNo evaluation yet. Run one in Skill Studio.
Source
- SKILL.md in the repositoryCheckingSkill/abaqus/analysis/abaqus-static-analysis/SKILL.md
Popularity
- Repository stars
- 881
- Repository forks
- 115
- 7-day trend score
- 34
Stars and forks are for the whole GitHub repository, not this skill alone. Refreshed 12 Sep 2026, a month ago.
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