THE INFLUENCE OF TEMPERATURE ON THE THERMODYNAMICS PROPERTIES OF COMPOSITES

Abstract

Abstract: As the temperature of severing environment variating severely, there would be a great alteration in the thermodynamics properties of composites. Due to the great difference of thermal expansion coefficient between internal fiber and resin in the composites, the resin performance is more sensitive to temperature environment. In this paper, based on the Maxwell constitutive model, the relationship between resin constitutive and temperature is studied. Assuming that the fiber performance does not vary with temperature, according to the mesoscopic composite theory, a hexagon representative volume element is employed, and the finite element method (FEM) is adopted to establish the thermodynamics constitutive model of composites under temperature. The influence of fiber arrangement and fiber content on the composites thermodynamics constitutive is discussed, respectively. The process would be applied for a multi-scale solution for composite under thermodynamics coupling loads.

Key words: composite, constitutive, multi-scale, micromechanics FEM

CLC Number:

TB332

GAO Hong-cheng, HUANG Qi-zhong, MA Shuai, HU Zhao-hui. THE INFLUENCE OF TEMPERATURE ON THE THERMODYNAMICS PROPERTIES OF COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2016, 0(10): 42-49.

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