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The Destinus engineering team is seeking a Stress Engineer to support structural sizing and simulation with a focus on non-linear and thermomechanical analysis of solid rocket motor structures. A core part of this role is the structural simulation of propellant grains, liner bonds, thermal protection systems (TPS), and propellant–liner–casing interfaces – combining FEA with material characterization and test correlation to build substantiated models of energetic material assemblies.
Tasks
- Conduct stress analysis using both classical hand-calculation methods and FEA – linear and non-linear, static and dynamic
- Simulate solid rocket motor structures: propellant grain stress and strain fields, bond integrity at propellant–liner and liner–casing interfaces, TPS thermomechanical response, and igniter/nozzle attachment loads
- Conduct non-linear simulations covering geometric non-linearity, material non-linearity (plasticity, hyperelasticity for propellant and elastomeric materials), and contact mechanics
- Perform thermomechanical analysis across metallic, composite, bonded, and polymeric structures under thermal cycling and operational loads
- Support experimental characterisation of propellant, liner, and bonded joint materials; feed test results (lap shear, peel, tensile, and DMA data) into material models and allowables
- Correlate FE predictions against strain gauge, load, and thermal test data; validate and update models accordingly
- Prepare stress reports, margin-of-safety calculations, and design justification documentation
Requirements
- Master’s degree in Aerospace Engineering, Mechanical Engineering, or a related field
- 3–5 years of industry experience in stress analysis of aerospace or mechanical structures
- Proficiency with FEA packages: NASTRAN (Femap or equivalent), Abaqus, or Optistruct/HyperWorks for both linear and non-linear analysis
- Strong classical stress analysis skills: beam theory, buckling, fastener and joint analysis, margin-of-safety calculations
- Experience with non-linear material modelling – plasticity, hyperelasticity, or viscoelasticity; familiarity with propellant or elastomeric material constitutive models is a strong advantage
- Experience with thermomechanical or thermal-structural analysis
- Experience correlating FE predictions with experimental test data
- Background in solid rocket motor, propulsion, or energetic structures is a strong advantage
- Fluent in English; German or French is an advantage
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Über uns
Destinus entwickelt und produziert europäische Verteidigungssysteme mit Fokus auf skalierbare Strike- und Air-Defence-Systeme für europäische und verbündete Streitkräfte. Wir entwickeln zentrale Technologien intern und fertigen über ein europäisches industrielles Netzwerk Systeme für moderne Streitkräfte. Unser Angebot umfasst unter anderem Kryla, Ruta, Hornet sowie Subsysteme für schnell produzierbare und integrierbare Verteidigungslösungen.