Effect of bolt tightening on the fatigue behavior of GLARE double shear lap joints

被引：0

作者：

Abazadeh, B. ^{[1
]}

Maleki, Hr ^{[1
]}

机构：

[1] Univ Bonab, Fac Mech Engn, Bonab, Iran

来源：

JOURNAL OF COMPOSITE MATERIALS | 2021年 / 55卷 / 21期

关键词：

Bolt clamping; fatigue; GLARE; fiber metal laminate; pre-stress; CRACK GROWTH-BEHAVIOR; FAILURE ANALYSIS; CLAMPING FORCE; FIBER; 2024-T3; DAMAGE; MODEL;

D O I：

10.1177/00219983211003315

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

In this paper, the effect of bolt torque tightening has been investigated on the fatigue behavior of GLARE in double shear lap configuration. To do so, experimental fatigue tests were conducted using GLARE3-5/4-0.4 specimens with applied torques of 0 (finger tightened), 2 and 4 Nm at different cyclic longitudinal load ranges to achieve the stress-life (S-N) curves. The results revealed that applying and increasing the clamping force enhances the fatigue life of the GLARE specimens. Furthermore, comparison of fatigue test results of GLARE and available monolithic aluminum alloy 2024-T3 plates indicated when the applied load range is low, the effect of clamping force is more noticeable in GLARE specimens due to longer fatigue crack growth life of GLARE. Also, the occurrence of fretting fatigue didn't reduce the fatigue life of GLARE specimens considerably in contrary to aluminum sheets because of the laminated structure of GLARE. The obtained results can provide insights in designing bolted GLARE joints with superior fatigue in-service performance.

引用

页码：2911 / 2920

页数：10

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