Buckling analysis of glass/carbon fiber hybrid composite laminates under thermal-mechanical loading

doi:10.19936/j.cnki.2096-8000.20231228.012

Abstract

Abstract: In this paper, glass/carbon fiber hybrid composite (G/CFHC) laminates are considered as the research object, and the buckling load of G/CFHC laminates is calculated by the finite element software ABAQUS on the basis of considering the dual influence of composite material property degradation and thermo-stress induced by temperature. The effects of ambient temperature, ply sequence, ply thickness and fiber hybrid ratio on the buckling characteristics of G/CFHC laminates are discussed. The results show that in the environment of 20~120 ℃, the temperature has great influence on the G/CFHC laminate. The buckling load of the laminate decreases continuously with the incresing of temperature and the downward trend tends to be flat after the temperature reaches a certain value. Under the premise of the same ply angle, the buckling load changes with the change of the position of carbon fiber laminas. The buckling load decreses gradually when the position of carbon fiber lanimas moves from the outer layers to the middle layers. And the ply thickness affects the buckling load tramatically which shows the buckling load increases with increasing the thickness of laminates. In addition, the fiber hybrid ratio has great influence on the buckling load of G/CFHC laminates. Increasing the numbers of carbon fiber laminas can improve the capability of buckling resistance of G/CFHC laminates effectively and increase the stability when the thickness and layer numbers are kept unchanged.

Key words: glass/carbon fibre hybrid composites, thermo-mechanical loading, finite element method, buck-ling load

CLC Number:

TB332

WANG Xiugang, SUN Shuangshuang, ZHANG Shengqi, MA Jiabin. Buckling analysis of glass/carbon fiber hybrid composite laminates under thermal-mechanical loading[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(12): 88-95.

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