THERMAL RESIDUAL STRESS ANALYSIS OF POLYMER MATRIX CARBONFIBER REINFORCED COMPOSITE WINDING TUBES

Abstract

Abstract: Thermal strain test of polymer matrix carbon fiber-reinforced composite winding tube curing on high temperature was carried out during the process of cooling to room temperature. The thermal residual stress numerical model of composite tube with various plies was established based on hierarchical attributes of the entity unit and the numerical results are in good agreement with the test results. On the basis of the numerical model, from the respect of the stress of fiber direction, the influence factor of thermal residual stress, such as the ply angle, contents of hoop fiber, position of hoop lays and the aspect ratio of the winding tube, are analyzed. The results show that the above influence factors have great influence on the residual stress. The residual stress in the fiber direction of the ply angle of 公式 and the 90°/0° plies orthogonal combination 0° fibers are compressive, and the hoop direction are extensive, which could cause the pipe initial defect micro-cracks.

Key words: winding tube, thermal residual stress, numerical model, the stress station of fiber direction

CLC Number:

TB332
V414.8

LIU Jia-shun, LI Feng, ZHANG Heng-ming. THERMAL RESIDUAL STRESS ANALYSIS OF POLYMER MATRIX CARBONFIBER REINFORCED COMPOSITE WINDING TUBES[J]. Fiber Reinforced Plastics/Composites, 2016, 0(2): 18-23.

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