Analytical investigation of thermomechanical stresses in graded interphase between the fiber and the matrix. Issue 15 (18th November 2017)

• Record Type: Journal Article
• Authors: Hao, Wenfeng; Ma, Yinji; Yao, Xue-feng
• Is Part Of: Mechanics of advanced materials and structures. Volume 24:Issue 15(2017)
• Page Start: 1239
• Page End: 1246
• Publication Date: 2017-11-18
• Subjects: Graded interphase -- stress transfer -- polymer-matrix composites (PMCs) -- thermomechanical properties; Composite materials -- Mechanical properties -- Periodicals; Composite construction -- Periodicals; 620.118
• DOI: 10.1080/15376494.2016.1232453
• Languages: English
• ISSNs: 1537-6494

Abstract

ABSTRACT: In this article, the thermomechanical stresses in the graded interphase between the fiber and the matrix in fiber-reinforced composites are investigated. First, the general theoretical analysis of two-dimensional steady-state mechanical and thermal stresses in a graded cylinder along the radial direction with the Power Law and Exponential Law distribution of the material properties is developed. Then the theoretical solution is applied to investigate the mechanical stresses and the thermal stresses of the fiber-matrix interphase, and the effects of material graded constant on the mechanical stresses and thermal stresses are discussed. Finally, the stress transfer mechanisms in the graded interphase are investigated which indicates that the total stresses in the fiber-matrix interphase increased with the increasing of the interphase thickness if the material graded constant varied with the radius in Power Law, but decreased in Exponential Law.