The behavior of delaminations in composite materials - experimental results

International Conference on Advanced Materials and New Technologies in Modern Materials Science 2015

Chermoshentseva, A.S.^1 ; Pokrovskiy, A.M.^1 ; Bokhoeva, L.A.^2

Bauman Moscow State Technical University, Baumanskaya 2-ya str., 5/1, Moscow

105005, Russia^1

East Siberia State University of Technology and Management, Kluchevskaya str., 40v, Ulan-Ude

670013, Russia^2

关键词: Composite laminate;    External factors;    Hydrophobic powder;    Industrial grades;    Mass concentration;    Operational life;    Production process;    Volume concentration;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/116/1/012005/pdf
DOI  :  10.1088/1757-899X/116/1/012005

来源: IOP

【 摘 要 】

Delamination is one of the most common failure modes of composite materials. It may occur as a consequence of imperfections in the production process or the effects of external factors during the operational life of the composite laminates, such as the impact by foreign objects. This paper presents the results of mechanical tests and the optimum degrees of filling the composite materials (CM) with hydrophobic powder (Tarkosil T-20) depending on the latter mass concentration. The results present test samples of the CM with the underlying interlayer defects. The samples were fabricated of twenty-ply pre-preg (fiberglass or carbon fiber). The industrial grade glass is T-25 (VM) specification 6-11-380-76. The composite materials have nanosized additives in structure. The volume concentration of nanopowders is varying from 0.1% to 0.5%. This kind of research has been done for the first time.