Progressive damage modelling of FRPs using a blended stress-strain and fracture mechanics approach in FEM

van Dongen, B.R.

Progressive damage modelling of FRPs using a blended stress-strain and fracture mechanics approach in FEM

Master thesis (2017)

Authors

B.R. van Dongen Aerospace Engineering

Contributors

Dimitrios S. Zarouchas (mentor)

Faculty

Aerospace Engineering, Aerospace Engineering

Finite Element Method Composites Open-hole tensile testing Fracture mechanics Continuum Damage Model Cohesive Zone Model Progressive Damage Analysis Damage mechanics Extended Finite Element Method

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Published Date

29-06-2017

Language

English

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Faculty

Aerospace Engineering

Abstract

Despite great strides made in understanding and modelling Fiber-Reinforced Polymers (FRPs), their full potential is held back by the inability to accurately predict failure. Contrary to past attempts focused on isolated application of stress-strain and fracture mechanics based failure theories, this research builds upon the existing framework by combining failure theories. To this end, stress-strain based models have been critically evaluated, selected and implemented in Abaqus. Validation by open-hole tensile tests shows good predictive capability, further enhanced through blending in fracture mechanics via the Extended Finite Element Method (XFEM) and Cohesive Zone Models (CZMs).

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