VARIATION COEFFICIENTS MODEL FOR CREEP OF POLYMER MATRIX

Fiber Reinforced Plastics/Composites ›› 2019, Vol. 0 ›› Issue (12): 39-42.

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VARIATION COEFFICIENTS MODEL FOR CREEP OF POLYMER MATRIX

LIANG Na¹, ZHU Si-rong^2*

1.Hubei University of Science and Technology, Xianning 437100, China;
2.School of Science, Wuhan University of Technology, Wuhan 430070, China

Received:2019-03-13 Online:2019-12-28 Published:2019-12-28

Abstract

Abstract: The dashpot of standard three-element viscoelastic model is extended to the generalized based on the assumption that the coefficient of viscosity is a function of time. A variation coefficients model for creep is established. The creep strain is obtained by resolving the variable parameter constitutive relation. The parameter determination method was established by the principle of the least square. The theoretical analysis shows that the model is suitable for describing the creep behavior of GFRP composites in the first two stages. The creep tests of glass-fiber reinforced plastic (GFRP) unidirectional plate has been conducted, and the proposed model was verified through the experimental data.

Key words: polymer matrix composites, creep strain, empirical function, GFRP unidirectional plate

CLC Number:

TB332

LIANG Na, ZHU Si-rong. VARIATION COEFFICIENTS MODEL FOR CREEP OF POLYMER MATRIX[J]. Fiber Reinforced Plastics/Composites, 2019, 0(12): 39-42.

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VARIATION COEFFICIENTS MODEL FOR CREEP OF POLYMER MATRIX

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