Fatigue & Life Time Prediction

In the area of Fatigue & Life Time Prediction research is being carried out for the following subjects: experimental characterization and modeling of the fatigue behavior of fiber reinforced polymers, the identification of input parameters for the fatigue life analysis (i.e. fatigue strength, decrease of residual strength, stiffness degradation) and the generation of linear and non-linear models; the layer-based fatigue life analysis of polymer composites on the basis of the classical laminate theory (analytically describable stress conditions) and by using the finite element method (complex geometry thinwalled and moderately curved structures) as well as the experimental fatigue life testing under environmental conditions.

Prof. Dr.-Ing.

Joachim Hausmann

Research Director Component Development & Manager Fatigue & Life Time Prediction

Economic Sectors Applications (Examples)
Automotive Chassis structures
Engineering Highly accelerated machine parts
Energy Wind turbine blades

Special Expertise

  • Fatigue life simulation
  • Multiple test facilities and measurement methods
    • Component test rig with 6 channel control
    • Cyclic testing with influence of liquids
    • Uni- and multi-axial materials characterization
    • High frequency test rig
    • 3D optical strain and deformation measurement mm to m
    • Linking to structural FEA
    • Acoustic emission and thermographie measurement equipment

Materials and Questions

Typical Materials

  • GFRP
  • CFRP
  • Continuously and discontinuously fiber reinforced polymers

Typical Questions

  • How to set-up tests for more efficient life time determination?
  • How can cyclic tests of materials and components be performed as close to reality as possible?
  • What is the influence of environmental conditions on the fatigue behavior of fiber reinforced plastics?

Projects in this field

Publications from the IVW papers in this field of competence

  • Bauer, C.

    Charakterisierung und numerische Beschreibung des nichtlinearen Werkstoff- und Lebensdauerverhaltens eines kurzglasfaserverstärkten Polymerwerkstoffes unter Berücksichtigung der im µCT gemessenen lokalen Faserorientierung

  • Ziermaier, M.

    Nichtlineare Versagensanalyse von dünnwandigen Faser-Kunstoff-Verbund-Bauteilen unter besonderer Berücksichtigung von out-of-plane Rovingwelligkeiten

  • Magin, M.

    Schadensfortschrittsentwicklung durch zyklische Belastung und deren numerische Modellierung unter Berücksichtigung nichtlinearer Werkstoffgrenze bei endloskohlenstofffaserverstärkten Polymerwerkstoffen

  • Noll, T. J.

    Beitrag zur Entwicklung punktueller Lasteinleitungen und Verbesserung der Versagensanalyse für Faser-Kunststoff-Verbund-Strukturen unter zyklischer Belastung

  • Förtsch, W.

    Mikrofraktographische Untersuchungen zum Ermüdungsversagen vorge-schädigter preform-CFK-Werkstoffe mit EP-Matrizes