Cenaero
Cenaero
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Aerospace

  • Manufacturing of aero structure components:
    • Influence of welding on distortions, residual stresses and joint properties
    • Fusion and friction welding of wing or fuselage parts
    • Influence of welding on crack propagation in fuselage components 
    • Machining of large size parts (landing gears, fuselage parts, slat tracks, etc.)
    • Stretch forming of leading edge of the wings
    • Hot forming of complex and large-size components 
    • Explosive forming 
    • Heat treatments
  • Structural design analysis and optimization
    • All types of simulations: linear and non-linear static, dynamic (impact, vibration), multi-physics (thermal-mechanical, thermal-chemical-mechanical)
    • Aero structures (fuselage panels, composite pax door and nacelle, cargo frames, beams, struts and floor, aeroelastic tailoring, etc.)
    • Spacecraft metallic and composite parts (stiffened panels, generic beam and struts, structure d’emport de micro-satellite, etc.)
    • On-ground related structures (test bench, metallic and composite portable antennas, etc.)
    • Test structures and test samples / technical demonstrators
    • Expertise in simulation of fastened and adhesively bonded structures (design and modeling, including hybrid joining)
  • Cost performance tradeoffs
    • Individual cost model for single part (stiffener, panel, fittings, assembly mode, material, etc.)
    • Global cost model for generic multi-body assembly (fuselage section, cargo structures, etc.)
  • Process design, modeling and simulation for composite parts
    • Thermal and chemical shrinkage of T, Z, I, L, Omega shaped profiles, double curved stiffened structures, helicopter blades from both open and closed mold processing routes
    • Thermal – mechanical simulation and optimization of molds (heating power, thermal map, etc.)
    • Mold compensation & experimental characterization
    • Prediction of the local fibre architecture / fibre orientation, volume fraction from simulations of manufacturing (draping, braiding, etc.)
    • Global simulation of machining (hole drilling, trimming, …) of composite parts, prediction of the final shape, characterization of local delamination and experimental validation
  • Structural integrity and damage tolerance analysis
    • Analysis of the overall load carrying capacity in the presence of defects
    • Analysis of the stability of manufacturing defects or detected cracks 
    • Fatigue crack propagation in metallic structures, prediction of the service life of metallic aircraft and spacecraft structures (non traversing static and propagating cracks in propellant tanks and pressure vessels, fatigue cracks in a slat track of a leading edge, single and double-bay cracks in stiffened panels, multiple fatigue cracks in thin walled pressure membranes, fatigue cracks in welds with residual stresses in H2 combustion chamber, fatigue cracks in fuse systems for hydraulic actuators of aero-brakes, etc.)
    • Failure analysis of composite structures (ply failure, delamination) under static and/or dynamic loading, coupled or not with thermal stress, as part of the structural integrity assessment
  • Materials selection, constitutive & damage modeling and optimization
    • Derivation of constitutive models and parameters identification by inverse analysis (ex: short or continuous fibres reinforced materials, multi-phase alloys, …)
    • Derivation and implementation of damage models for bulk materials (Continuum Damage Mechanics) and for adhesive joints (Cohesive Zone)
  • Large scale structural analysis on HPC infrastructure
    • Up to 50MDOFS FE simulations with material and geometrical non-linearities, macro-elements, bushings, contacts, composite shells or volumic shells
  • CFD-based analysis
    • External aerodynamics on large & complex structures
    • Aeroacoustics analysis and noise attenuation
    • Fluid-structure interaction analysis based on fully-coupled methods
    • Engines efficiency optimization, thermal analysis, ...
    • Multi-disciplinary shape optimization