KEY RESPONSIBILITIES

Stress Analysis & Structural Substantiation

- Perform linear and non-linear FEA using MSC Nastran/Patran, HYPERMESH, ANSYS, or equivalent FEM tools for aircraft interior structural components.
- Conduct static, agile (crash/HIC) for seating systems, passenger service units (PSUs), cabin panels, galleys, and monuments.
- Develop and maintain FE models for primary and secondary interior structures including composite and metallic assemblies.
- Execute hand calculations to validate FEA results and provide independent verification of structural margins.
- Perform stress substantiation per applicable FAA/EASA airworthiness regulations (FAR 25, CS-25) and OEM structural design requirements.

Product Scope — Interior Structures
- Seating Systems: Economy, business, and first-class seats including track attachment, lug analysis, seat pan, armrest, and recline mechanisms.
- Cabin Panels: Sidewall, ceiling, floor panels — including attachment interface, pressure, and inertia load analysis.
- Galley Structures: Full-size, quarter, and half-galley stress verification including trolley loads, utility connections, and monument interfaces.
- Monuments: Lavatories, crew rest modules, partition walls, dividers — structural adequacy under static and agile load conditions.
- Overhead Storage Bins (OSBs): Latching loads, hinge analysis, filling load cases, and door stop analysis.

Composite Structures

- Conduct composite laminate analysis — ply-by-ply stress, first-ply failure, progressive failure, and delamination assessment.
- Apply classical lamination theory (CLT) and failure criteria (Tsai-Wu, Tsai-Hill, Maximum Strain).




- Perform bonded joint and fastened joint analysis for composite-to-composite and composite-to-metallic interfaces.
- Collaborate with Materials & Process (M&P;) team to define lay-up, fiber orientation, and repair schemes.

Certification & Documentation
- Prepare stress reports and substantiation packages in compliance with OEM (Boeing, Airbus, Embraer) and regulatory requirements.
- Support DER/DAR activities for FAA/EASA STC and TC projects.
- Interface with customer engineering, DERs, and certification authorities during design reviews and audits.
- Maintain traceability of load cases, assumptions, and analysis results through structured stress memo system.

Collaboration & Design Support
- Work closely with design engineers and program managers throughout the product development cycle (PDR, CDR, TRR).
- Provide design-to-stress feedback for weight reduction and structural optimization initiatives.
- Support test planning, interpret structural test data, and correlate with analytical predictions.
- Mentor junior stress engineers and review analysis deliverables for technical accuracy.

QUALIFICATIONS

Required Qualifications

- B.E. / B.Tech / M.Tech in Aerospace, Mechanical, or Structural Engineering.
- 5–12 years of stress analysis experience in aerospace interiors or aircraft structures.
- Proficiency in MSC Nastran & Patran (pre/post-processing, model building, load application).




- Hands-on experience with ANSYS Mechanical or ANSYS Workbench for FEA.
- Strong knowledge of composite structural analysis and laminate theory.
- Working knowledge of FAR 25 / CS-25 structural airworthiness requirements.
- Experience with interior product types: seats, panels, galleys, or monuments.
- Proficiency in hand-calculation methods: margins, free-body diagrams, joint analysis.

Preferred Qualifications

- Experience with Airbus A320/A330/A350 or Boeing 737/777/787 interior programs.
- Familiarity with HIC (Head Injury Criterion) and 16g crash load analysis per FAR 25.562.
- Knowledge of ABD/DMC systems for composite material databases.
- Experience with Hypermesh or FEMAP as pre/post-processing tools.
- Familiarity with CATIA V5/V6 or SolidWorks for geometry interpretation.
- Exposure to STC / TC certification programs with an FAA/EASA DER.
- Knowledge of metallic and non-metallic fastener analysis (Hi-Lok, NAS, Cherry Max).
- Experience with seating TSO-C127b or TSO-C39 certification requirements.

TOOLS & SOFTWARE

Primary FEA & Analysis Tools

MSC Nastran MSC Patran ANSYS HyperMesh FEMAP

Design & Supporting Tools

CATIA V5/V6 SolidWorks MS Excel / VBA MATLAB Python

CORE COMPETENCIES

Technical

- Structural analysis & margin of safety computation
- FEM model development & validation
- Composite design & failure analysis
- Fatigue & damage tolerance assessment
- Load path interpretation & free-body diagrams

Qualified

- Strong written & verbal communication
- Ability to work in multi-disciplinary project teams
- Structured problem-solving & analytical thinking
- Attention to detail in technical documentation
- Self-driven with ability to meet tight deadlines

📌 Aerospace - Cabin Interiors Stress Analysis Engineer (Hyderabad)
🏢 Cyient
📍 Hyderabad