Experimental and Model Based Mechanical Behaviour of Materials

The division's main fields of activity include thermo-mechanical characterisation of structural materials as well as load and lifetime analyses of components using advanced experimental and numerical methods. The investigated material range from steel, grey cast iron, polycrystalline and monocrystalline nickel base alloys, titanium aluminides through ceramics to fiber-reinforced composite materials with metallic and ceramic matrix. The load spectrum includes uniaxial and multiaxial monotonic as well as cyclic loads which may be imposed in the isothermal as well as non-isothermal condition. Loading can be applied at strain rates between 10^-6 s^-1 and 10³ s^-1 and temperatures range from room temperature to 1900 °C.

Key areas of work

• Experimental determination and numerical simulation of the deformation and damage behaviour of materials subjected to complex thermomechanical loading histories
• Advancement and tailoring of new thermomechanical testing techniques required by the material and load conditions
• Development, calibration and verification of material and damage models for simulating the inelastic material behaviour and the failure progress under complex thermo-mechanical loading
• Establishment of subroutines of material and damage models for commercial Finite Element (FE)-codes
• Inelastic 3D-FE-stress-strain-analyses of complex loaded components and for the development of lifetime rules
• Standardization, round robin tests
• Contract work
• Support of experimental and numerical-theoretical studies, master theses and dissertations

Areas of competence

• Metallic High Temperature Materials
• Composite Materials, Ceramics
• Modelling and Simulation of Mechanical Behaviour of Materials
• Material Behaviour at High Strain Rates

Technical Equipment

• Testing facilities and testing methods

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