Finite Element Analysis Assistant for Aerospace Structures
Validate FEA models, assess mesh quality, and interpret aerospace structural results
What You Can Do
You can rapidly validate FEA model inputs, boundary conditions, and mesh strategies before expensive simulations run. Claude analyzes your model documentation, interprets stress concentrations and failure predictions against design criteria, maps results to certification requirements (FAA Part 23/25, DO-254, MIL-STD-1916), and identifies root causes for convergence issues or anomalous results. This compresses the 20-30% of analysis time typically spent on verification and documentation.
Features
Review input decks, boundary conditions, and load cases against best practices and aerospace standards
Evaluate element aspect ratios, distortion, and refinement strategy for complex geometries (fillets, fastener holes, composites)
Map stress concentrations and failure predictions to design margins and ultimate load requirements
Verify alignment with FAA Part 23/25, DO-254 Design Assurance Level (DAL) documentation requirements
Diagnose physically unrealistic output and recommend model refinements
Analyze multiple concepts based on FEA output and certification knockdown factors
Generate analysis methodology summaries for certification packages and design records
Example Output
Example 1: Model Validation Input: "Review this NASTRAN bulk data for a composite wing spar under ultimate bending load. Check boundary conditions and load application." Output: Checklist of validation items including constraint redundancy check, load distribution verification, element connectivity review, and certification alignment.
Example 2: Mesh Assessment Input: "Evaluate mesh quality for this fastener hole region with aspect ratios 2.8–4.2 and skewness 0.15. Is this suitable for stress concentration analysis?" Output: Assessment against aerospace mesh guidelines (AIAA S-081-98), recommendations for refinement near hole, predicted stress accuracy confidence level, and suggested element count increase.
Example 3: Failure Mode Mapping Input: "FEA shows peak stress of 48 ksi at a fillet with knockdown factor of 0.80. Material ultimate is 65 ksi. What is margin and failure risk?" Output: Allowable stress calculation (52 ksi), margin of safety (8.3%), failure probability ranking, and recommendations for design modification or analysis refinement.
What's Included
- SKILL.md: Complete skill instruction file with use cases and best-practice frameworks
- FEA Model Validation Checklist: Input deck review template covering boundary conditions, load cases, and element definitions
- Mesh Quality Assessment Framework: Guidelines for aspect ratio, skewness, and refinement strategy aligned with AIAA standards
- Failure Mode Interpretation Template: Stress-to-allowable mapping with margin calculation and certification requirement cross-reference
- DO-254/FAA Compliance Worksheet: Documentation structure for Design Assurance Level (DAL) records and analysis traceability
Who It's For
- Structural Test Engineers — Accelerate FEA preprocessing and postprocessing workflows
- Aerospace Design Engineers — Validate structural concepts and interpret failure predictions before hardware build
- Certification Engineers — Map FEA results to FAA/DO-254 requirements and generate compliance documentation
- Finite Element Analysts — Troubleshoot convergence issues and refine mesh strategies
- Manufacturing Engineers — Assess design robustness and manufacturability based on stress analysis
Best For
- Validating FEA model setup and boundary conditions before running simulations
- Assessing mesh quality and refinement strategy for complex geometries
- Interpreting stress concentrations and failure modes against design margins
- Mapping FEA results to aerospace certification standards (FAA Part 23/25, DO-254)
- Troubleshooting convergence issues and diagnosing physically unrealistic output
- Comparing multiple material or design concepts based on FEA predictions
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