Tensile behaviour of stainless steel fibre/epoxy composites with modified adhesion

被引：52

作者：

Callens, Michael Guy ^{[1
]}

Gorbatikh, Larissa ^{[1
]}

Bertels, Ellen ^{[2
]}

Goderis, Bart ^{[2
]}

Smet, Mario ^{[2
]}

Verpoest, Ignaas ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Mat Engn, Leuven, Belgium

[2] Katholieke Univ Leuven, Dept Chem, Leuven, Belgium

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2015年 / 69卷

关键词：

Fibres; Plastic deformation; Adhesion; Mechanical testing; SURFACE HYDROXYL CONCENTRATION; SELF-REINFORCED POLYPROPYLENE; MECHANICAL-PROPERTIES; FRACTURE-TOUGHNESS; MATRIX COMPOSITES; POLYMER-MATRIX; FIBER; ARCHITECTURE; STRENGTH;

D O I：

10.1016/j.compositesa.2014.11.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study we investigate the tensile behaviour of unidirectional and cross-ply composites reinforced with ductile stainless steel fibres and modified adhesion to the epoxy matrix. Results show that annealed stainless steel fibres have a potential in designing tough polymer composites for structural applications. The stiffness of the UD composites made from these fibres is 77GPa combined with the strain-to-failure between 15% and 18% depending on the level of adhesion. Silane treatments were used to modify the adhesion. By treating the stainless steel fibres with different silane coupling agents, an increase of 50% in the transverse 3-point-bending strength was realised. Increasing the adhesion by 50% leads to a higher tensile strength and strain-to-failure in both UD and cross-ply laminates and a higher in-situ strength of the 90 degrees plies. It also delays formation of matrix cracks and hinders growth of debonding. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：208 / 218

页数：11

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