This project aims continuing the studies on crack propagation in composite materials, that was started at Technical University of Delft. Considering the contribution will be more relevant in the field of composite materials.During the first phase of DR, it was conducted a huge bibliographic review in the field of resin flow in porous media, in which the original project was conducted, and it was verified a big cientific advancement of other institutions, for this reason it would not generate a original research for the PhD. In the initial studies, the crack propagation on modes I and II for static and dynamic conditions were evaluated by inserting a teflon film for pre crack formation. The individual study of crack propagation provided a patial understanding of the crack propagation mechanisms. However for each crack propagation mode, it is necessary further microscopic investigation for each crack propagation rate. Consequently for this new purpose, an additional study and the employement of the data generated in the project FAPESP 2012/07646-0 in the axial tension-tension fatigue by following ASTM D3479/D3479M-07 and ASTM D55766/D 5766M-07 for open hole. This study aims investigating the interactions of the loading effects at an irregular surface of a woven fabric in the axial fatigue based on fractures generated previously at TUDelft. The specimen will be cycled for a crack formation, which will be compared as mentioned. Futher evaluation of the translaminar crack propagation could be performed for the open hole specimen.
News published in Agência FAPESP Newsletter about the scholarship: