Fracture toughness and shear behavior of composite bonded joints based on a novel aerospace adhesive

被引：81

作者：

Katsiropoulos, Ch V. ^{[1
]}

Chamos, A. N. ^{[1
]}

Tserpes, K. I. ^{[1
]}

Pantelakis, Sp G. ^{[1
]}

机构：

[1] Univ Patras, Dept Mech Engn & Aeronaut, Lab Technol & Strength Mat, Patras 26500, Greece

来源：

COMPOSITES PART B-ENGINEERING | 2012年 / 43卷 / 02期

关键词：

Polymer-matrix composites (PMCs); Adhesion; Fracture toughness; Mechanical testing; Bonded joints; MODE-I FRACTURE; THICKNESS;

D O I：

10.1016/j.compositesb.2011.07.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the mechanical performance of the newly developed LMB aerospace structural adhesive has been characterized experimentally. To this end, a comparison has been performed with the Epibond 1590 A/B adhesive on the basis of the effects of thermal aging, wet aging and adhesive thickness on the fracture toughness and shear behavior (static and fatigue) of bonded joints between CFRP laminates. Mode-I and -II fracture toughness was measured through tensile and 3-point bending tests on double-cantilever beam specimen, respectively, while the shear behavior of the joints was assessed through static and fatigue double-lap shear tests. A fractographic analysis of the fracture surfaces was performed in order to detect the failure mode of the bonded joint. The experimental results show a higher fracture toughness and improved fatigue behavior for the LMB adhesive. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：240 / 248

页数：9

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