Analysis of fatigue behavior of composite structures with circular internal delamination
Katarzyna Składanowska, Izabela Sanetra, Aleksander Muc
Quarterly No. 3, 2017 pages 121-125
DOI:
keywords: circular delamination, fatigue, glass/epoxy composites
abstract The aim of the paper is to demonstrate and describe the fatigue failure mechanisms of eight-layer glass-epoxy composites with a central circular delamination, numerical description of the delamination problems and a possible optimal design. There are a few variables (tension and compression forces, number of cycles, construction of the tested plates) which can be changed during the experiment that will very likely provide different results. The problem is to find the link among all those variables to fully describe their influence on the physical behavior of the epoxy plate which is the subject of the experiment. The results are illustrated with the use of the numerical analysis method. Thanks to that, it is possible to describe how the number of cycles, tension force and stress variations affect the whole fatigue process.