Experimental and numerical investigation of the interface between epoxy matrix and hemp yarn

被引：42

作者：

Guillebaud-Bonnafous, C. ^{[1
]}

Vasconcellos, D. ^{[1
]}

Touchard, F. ^{[1
]}

Chocinski-Arnault, L. ^{[1
]}

机构：

[1] Univ Poitiers, Inst Pprime, CNRS, UPR 3346,Dept Phys & Mecan Mat, F-86961 Futuroscope, France

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2012年 / 43卷 / 11期

关键词：

Interface; Fragmentation; Stress transfer; Finite element analysis (FEA); FIBER-REINFORCED COMPOSITES; POLYPROPYLENE COMPOSITES; MECHANICAL-PROPERTIES; TENSILE PROPERTIES; ACOUSTIC-EMISSION; IMAGE-CORRELATION; MODEL COMPOSITES; STRESS TRANSFER; LASER SPECKLE; FLAX FIBERS;

D O I：

10.1016/j.compositesa.2012.07.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, the adhesion between an impregnated hemp yarn and the epoxy matrix was investigated. The micromechanical tests usually used to characterise the fibre/matrix interface were adapted to the yarn/matrix interface. Single yarn composite specimens with yarn axis at 0 degrees were manufactured and submitted to fragmentation tests to determine the experimental interfacial shear strength (IFSS). Specific single yarn composite specimens with yarn axis at 90 degrees from the loading direction were also tested to track by digital image correlation the strain fields in the yarn, in the resin and at the yarn/matrix interface. A finite element analysis was developed and optimised to simulate the fragmentation process and provides a conservative value of IFSS. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：2046 / 2058

页数：13

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