Optimization of curing process for polymer-matrix composites based on orthogonal experimental method |
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| Authors: | Tengfei Chang Lihua Zhan Wei Tan Shujian Li |
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| Institution: | 1.Light Alloys Research Institute,Central South University,Changsha,China;2.School of Mechanical and Electrical Engineering,Central South University,Changsha,China;3.Division C, Department of Engineering,University of Cambridge,Cambridge,UK |
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| Abstract: | In this paper, the orthogonal experimental method was carried out to optimize the curing process of aeronautical composite X850/T800 in autoclave process. Four important curing parameters including curing pressure, heating rate, curing temperature and heat preservation time were taken into account, and sixteen samples were fabricated to study the effects of the four parameters mentioned above on the curing quality by interlaminar properties test and microstructure analysis. The interlaminar properties and the interfacial bonding quality of these samples were studied by the short-beam three points bending test and scanning electron microscopy, respectively. Results revealed that the optimal curing process of X850/T800 composite laminate should be as follows: curing pressure of 0.6 MPa, heating rate of 1.5 °C/min, curing temperature of 160 °C, and heat preservation time of 120 min. |
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