Presentation of the PhD dissertation “Development of efficient testing methods and cohesive zone models for analyzing fatigue-driven delamination in 3D laminated composite structures” by Laura Carreras Blasco

lcarreras-phd-fatigue-delamination-amade-composite

Presentation of the PhD dissertation “Development of efficient testing methods and cohesive zone models for analyzing fatigue-driven delamination in 3D laminated composite structures” by Laura Carreras Blasco

AMADE is pleased to congratulate Laura Carreras for earning her PhD last July 17. She presented her thesis, a contribution to the reliable design of composite structures subjected to fatigue-driven delamination. A first step has been to design a method, using the cohesive zone model in 3D, to deal with delamination propagation by defining the growth driving direction, only using local element information. Next, A numerical procedure to evaluate the mode-decomposed J-integral in curved delamination fronts has been presented. Also, the dissertation includes a variable cyclic displacement test procedure which allows to measure the crack growth rate for the desired range of severities with a single specimen. Finally, a benchmark test has been used to check the model. The preditions have been proven to be accurate.

The thesis’ advisors have been Drs. Jordi Renart and Dr. Albert Turon (UdG), and Dr. Brian L.V. Bak and Dr. Esben Lindgaard (Aalborg University – Denmark). The grading panel consisted of Dr. Pedro Camanho (UPorto –Portugal), Dr. Frans van der Meer (TUDelft – Netherlands) and Dr. Emilio González (UdG).