Analysis of mechanical properties anisotropy of nanomodified carbon fibre-reinforced woven composites

4th International Conference on Advanced Composites and Materials Technologies for Arduous Applications

Ruslantsev, A.N.^1,2 ; Portnova, Ya.M.^3 ; Tairova, L.P.^2 ; Dumansky, A.M.^1,2

Institute of Machine Science Named after A.A. Blagonravov, Russian Academy of Sciences, 4 Maly Khariton'evsky per., Moscow

101990, Russia^1

Bauman Moscow State Technical University, 5 2nd Baumanskaya str, Moscow

105005, Russia^2

JSC ORPE Technologiya Named after A.G.Romashin, 15 Kievskoye Shosse, Obninsk, Kaluga Region

249031, Russia^3

关键词: Carbon fibre laminates;    Deformation regularities;    Elastic characteristic;    Microscopic cracks;    Polymer composite;    Reinforcing fibres;    Strain energy release;    Technological methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/153/1/012003/pdf
DOI  :  10.1088/1757-899X/153/1/012003

来源: IOP

【 摘 要 】

The polymer binder cracking problem arises while designing and maintaining polymer composite-based aircraft load-bearing members. Some technological methods are used to solve this problem. In particular the injection of nanoagents can block the initiation and growth of microscopic cracks. Crack propagation can also be blocked if the strain energy release is not related with fracturing. One of the possible ways for such energy release is creep. Testing of the anisotropy of the woven carbon fibre reinforced plastic elastic characteristics and creep have been conducted. The samples with different layouts have been made of woven carbon fibre laminate BMI-3/3692 with nanomodified bismaleimide matrix. This matrix has a higher glass transition temperature and improved mechanical properties. The deformation regularities have been analyzed, layer elastic characteristics have been determined. The constitutive equations describing composite material creep have been obtained and its parameters have been defined. Experimental and calculated creep curves have been plotted. It was found that the effects of rheology arise as the direction of load does not match the direction of reinforcing fibres of the material.