Expert Lecture Spotlight | Prof. Anthony Waas
Semi-Discrete Model for Progressive Damage and Failure of Fiber Reinforced Laminates
As carbon fiber-reinforced polymer (CFRP) composites become essential for primary load-bearing structures across aerospace, automotive, and energy sectors, engineers face increasing pressure to deliver robust, predictive models for their complex failure behavior.
In this lecture, Prof. Anthony Waas introduces a novel, semi-discrete modeling framework for capturing the progressive damage and failure of CFRP laminates—offering both computational efficiency and physical fidelity.
Key damage mechanisms addressed include:
- Intralaminar matrix cracking, which weakens individual plies
- Interlaminar delamination, the out-of-plane separation between adjacent plies
- Interaction effects, where matrix cracks trigger or accelerate delamination
The talk begins with experimental evidence that delineates these mechanisms, followed by the introduction of a semi-discrete progressive damage model that integrates:
ASTM-based Mode I, Mode II, and mixed-mode fracture data
Finite Element Analysis (FEA) for structural response prediction
An efficient framework for simulating damage evolution and failure interaction
The resulting model offers a powerful tool for evaluating the structural integrity and damage tolerance of CFRP components under realistic loading conditions—bridging the gap between material testing and structural design.
Now streaming on the cdmHUB YouTube channel as part of the Global Composites Expert Webinar Series.
