Talks and Poster Presentations (with Proceedings-Entry):
M. Springer, A. Turon, H. E. Pettermann:
"A Cyclic Cohesive Zone Model for Variable Amplitude Loading and Mixed Mode Behavior";
Talk: 6th ECCOMAS Thematic Conference on the Mechanical Response of Composites: COMPOSITES 2017,
Eindhoven;
2017-09-20
- 2017-09-22; in: "6th ECCOMAS Thematic Conference on the Mechanical Response of Composites: COMPOSITES 2017",
J.J.C. Remmers, A. Turon (ed.);
TU Eindhoven,
(2017),
48
- 59.
English abstract:
A Cyclic Cohesive Zone Model is developed which is an extension of an exponential traction-separation law describing the quasi-static constitutive behavior of the interface. Damage degradation under fatigue loading is accounted in a cycle-by-cycle analysis. A Paris´ law type formulation is utilized to model fatigue damage which is based on physically interpretable interface properties, overcoming the need of any parameter fitting. Mixed-Mode loading is considered by the BK-criterion. Varying load amplitudes are captured by the model formulation. For constant amplitude loading or slowly changing load amplitudes a cycle jump technique is implemented to decrease the computational time. The model is implemented within the framework of the Finite Element Method and includes non-local evaluation of structural parameters. Finally, the proposed model is demonstrated on Mode I, Mode II, and Mixed-Mode delamination tests of carbon/epoxy laminates.
Created from the Publication Database of the Vienna University of Technology.