A PREDICTED APPROACH FOR DETERMINING EFFECTIVE CONSTANTS OF FIBER COMPOSITE WITH GRADED INTERPHASE

摘要：

A predicted approach for determining moduli, which include extensional moduli, shear moduli and Poisson’s ratio is presented for fiber composites with graded interphase. The approach is derived based on a mechanics of materials formulations for the concentric cylinder assembles model of a single fiber, surrounding matrix, and a graded interphase to account for the chemical reaction and diffuseness which commonly occurs between fiber and matrix. The principles of the displacement compatibility and force equilibrium for each constitutes of the representative volume element, converted to those of Equivalent Square assembles, are used in the process of the derived predicted approach without complicated computations. The validity of the predicted approach is demonstrated versus comparisons with experimental data and some other models existing in the literature. Synchronously, it shows that determining effective moduli of fiber composite with graded interphase by micromechanics equations is a special case of the predicted approach.

关键词： Micromechanics effective properties graded interphase fiber composite mechanics of materials approach

作者: Jianhui ZHAO Zhiying OU

作者单位: School of Instrumentation Science & Opto-electronics Engineering, Beihang University, Beijing 10080, School of Science, Lanzhou University of Technology, Lanzhou 730050, China

会议类型: 国际会议

会议名称: 2007年微纳系统集成及其商业化应用国际学术会议(2007 International Conference & Exhibition on Integration and Commercialization of Micro and Nano-Systems)

会议地点: 海南三亚

会议语种:英文

在线出版日期: 2007-01-10（万方平台首次上网日期，不代表论文的发表时间）