Secondary bending effects in progressively damaged single-lap, single-bolt composite joints
Static tensile experiments and progressive failure simulations of single-bolt, single- and double-lap joints were carried out to comparatively investigate secondary bending effects, which present significant eccentric-loading phenomena in single-lap joints but are almost non-existent in symmetric do...
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doaj-6efe41851b674d888dd7d31f761177512020-11-25T01:28:31ZengElsevierResults in Physics2211-37972016-01-016704711Secondary bending effects in progressively damaged single-lap, single-bolt composite jointsLibin Zhao0An Xin1Fengrui Liu2Jianyu Zhang3Ning Hu4School of Astronautics, Beihang University, Beijing 100191, ChinaSchool of Astronautics, Beihang University, Beijing 100191, ChinaSchool of Astronautics, Beihang University, Beijing 100191, ChinaCollege of Aerospace Engineering, Chongqing University, Chongqing 400044, China; Corresponding author.College of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaStatic tensile experiments and progressive failure simulations of single-bolt, single- and double-lap joints were carried out to comparatively investigate secondary bending effects, which present significant eccentric-loading phenomena in single-lap joints but are almost non-existent in symmetric double-lap joints. Progressive damage models of single-lap and double-lap joints were established, from which the numerical predictions were found to be in good agreement with the experimental outcomes. Experimental macro-scope failure patterns and seven numerical micro-scope failure modes obtained from the progressive damage analyses were presented for the two types of joints. The effects of secondary bending on the mechanical degradation and failure mechanism of single-lap joints were revealed. Some characterizations of secondary bending in the joints, such as a characterized parameter on the AGARD points, joint deformations and contact states, were quantitatively traced during the total progressive damage process. All these characterizations increased the understanding of the effects of secondary bending on the failure process of a single-bolt, single-lap joint. Keywords: Composite, Bolted joint, Secondary bending, Progressive damage analysishttp://www.sciencedirect.com/science/article/pii/S2211379716301632 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Libin Zhao An Xin Fengrui Liu Jianyu Zhang Ning Hu |
spellingShingle |
Libin Zhao An Xin Fengrui Liu Jianyu Zhang Ning Hu Secondary bending effects in progressively damaged single-lap, single-bolt composite joints Results in Physics |
author_facet |
Libin Zhao An Xin Fengrui Liu Jianyu Zhang Ning Hu |
author_sort |
Libin Zhao |
title |
Secondary bending effects in progressively damaged single-lap, single-bolt composite joints |
title_short |
Secondary bending effects in progressively damaged single-lap, single-bolt composite joints |
title_full |
Secondary bending effects in progressively damaged single-lap, single-bolt composite joints |
title_fullStr |
Secondary bending effects in progressively damaged single-lap, single-bolt composite joints |
title_full_unstemmed |
Secondary bending effects in progressively damaged single-lap, single-bolt composite joints |
title_sort |
secondary bending effects in progressively damaged single-lap, single-bolt composite joints |
publisher |
Elsevier |
series |
Results in Physics |
issn |
2211-3797 |
publishDate |
2016-01-01 |
description |
Static tensile experiments and progressive failure simulations of single-bolt, single- and double-lap joints were carried out to comparatively investigate secondary bending effects, which present significant eccentric-loading phenomena in single-lap joints but are almost non-existent in symmetric double-lap joints. Progressive damage models of single-lap and double-lap joints were established, from which the numerical predictions were found to be in good agreement with the experimental outcomes. Experimental macro-scope failure patterns and seven numerical micro-scope failure modes obtained from the progressive damage analyses were presented for the two types of joints. The effects of secondary bending on the mechanical degradation and failure mechanism of single-lap joints were revealed. Some characterizations of secondary bending in the joints, such as a characterized parameter on the AGARD points, joint deformations and contact states, were quantitatively traced during the total progressive damage process. All these characterizations increased the understanding of the effects of secondary bending on the failure process of a single-bolt, single-lap joint. Keywords: Composite, Bolted joint, Secondary bending, Progressive damage analysis |
url |
http://www.sciencedirect.com/science/article/pii/S2211379716301632 |
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