Structures engineering

Lightweight structures, special structures and complex details often require more than a standard analysis.
Our engineering support is specifically tailored to your project and helps you to benefit from our tools and experience.

We use the Finite Element Method (FEM) to describe the behaviour of a structure from early conceptual phases up to the final sizing in addition to analytical methods and classical hand calculation. Many years of experience with the Finite Element Method (FEM) range from linear static analyses to complex dynamic analyses. Space Structures uses NASTRAN, ANSYS® and OptiStruct® for state-of-the-art solver technology together with Altair HyperWorks or Femap as modeling and visualization tool.

Finite Element Analysis (FEA)
• Modeling based on CAD design data
• Problem-adapted discretisation
• Statics (linear and nonlinear)
• Dynamics (modal analysis and vibration, incl. micro-vibration)
• Strength verifications
• Deformation analyses
• Stability analyses (imperfection modeling where required)
• Thermo-elastic analyses (including temperature mapping)
• Shock Analyses (modal and transient)
• Model correlation with test data
• Model condensation (Guyan and Craig-Bampton)
• Optimisation

General structure analysis
• Analytical methods and classic hand-calculation
• Programming of tools for FEA pre- and postprocessing
• Acoustic noise analyses using the Boundary-Element-Method (BEM) implemented in VaOne® software
• Shock analyses acc. to ESA Shock Handbook
• Bolt verifications acc. to ECSS, VDI 2230, DIN 18800, EN 1993-1-8
• Insert design acc. to ECSS Insert Design Handbook
• Fatigue verifications acc. to ESAFATIG, EN 1993-1-9
• Fracture mechanics analyses with ESACRACK, NASGRO

• Metals, including special alloys (INVAR, etc.)
• Composites (CFRP, GFRP, PCB, metal-ceramics, etc.)
• Special Materials (glas, tethers, concrete, ...)

Stability analyses
• Design of large plated structures
• Effective width method according to EN 1993-1-5, Chapter 4 to 7
• Reduced stress method according to EN 1993-1-5, Chapter 10
• FEM-based design according to EN 1993-1-5, Annex C

Hydraulic steel structures
• Structure analysis and recalculation
• Estimation of remaining service life
• FEM analyses in case of failure

FEM Model