Influence of sheet thickness on fatigue behavior and fretting of self-piercing riveted joints in aluminum alloy 5052

Lun Zhao, Xiaocong He, Baoying Xing, Yi Lu, Fengshou Gu, Andrew Ball

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

This article deals mainly with the influence of sheet thickness on the fatigue behavior and fretting of single-lap self-piercing riveted joints in aluminum alloy 5052. The fatigue lives, failure modes, failure positions, fretting and fretting failure mechanism of the joints were investigated. A statistical analysis was performed to analyze the rationality of fatigue test data. The results showed that the fatigue life of the joints increases with increasing sheet thickness, but the increase of the fatigue life is limited. And, with increasing sheet thickness the fatigue failure positions transferred from the pierced sheet to the locked sheet. In all the joints fretting resulted in the initiation and propagation of fatigue cracks at the interfaces. Increasing sheet thickness could decrease the size and degree of fretting at the interface between the two riveted sheets.

Original languageEnglish
Pages (from-to)1010-1017
Number of pages8
JournalMaterials and Design
Volume87
Early online date29 Aug 2015
DOIs
Publication statusPublished - 15 Dec 2015

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Piercing
Aluminum alloys
Fatigue of materials
Failure modes
Statistical methods

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title = "Influence of sheet thickness on fatigue behavior and fretting of self-piercing riveted joints in aluminum alloy 5052",
abstract = "This article deals mainly with the influence of sheet thickness on the fatigue behavior and fretting of single-lap self-piercing riveted joints in aluminum alloy 5052. The fatigue lives, failure modes, failure positions, fretting and fretting failure mechanism of the joints were investigated. A statistical analysis was performed to analyze the rationality of fatigue test data. The results showed that the fatigue life of the joints increases with increasing sheet thickness, but the increase of the fatigue life is limited. And, with increasing sheet thickness the fatigue failure positions transferred from the pierced sheet to the locked sheet. In all the joints fretting resulted in the initiation and propagation of fatigue cracks at the interfaces. Increasing sheet thickness could decrease the size and degree of fretting at the interface between the two riveted sheets.",
keywords = "Failure positions, Fretting, Fretting failure mechanism, Self-piercing riveting, Sheet thickness",
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Influence of sheet thickness on fatigue behavior and fretting of self-piercing riveted joints in aluminum alloy 5052. / Zhao, Lun; He, Xiaocong; Xing, Baoying; Lu, Yi; Gu, Fengshou; Ball, Andrew.

In: Materials and Design, Vol. 87, 15.12.2015, p. 1010-1017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Influence of sheet thickness on fatigue behavior and fretting of self-piercing riveted joints in aluminum alloy 5052

AU - Zhao, Lun

AU - He, Xiaocong

AU - Xing, Baoying

AU - Lu, Yi

AU - Gu, Fengshou

AU - Ball, Andrew

PY - 2015/12/15

Y1 - 2015/12/15

N2 - This article deals mainly with the influence of sheet thickness on the fatigue behavior and fretting of single-lap self-piercing riveted joints in aluminum alloy 5052. The fatigue lives, failure modes, failure positions, fretting and fretting failure mechanism of the joints were investigated. A statistical analysis was performed to analyze the rationality of fatigue test data. The results showed that the fatigue life of the joints increases with increasing sheet thickness, but the increase of the fatigue life is limited. And, with increasing sheet thickness the fatigue failure positions transferred from the pierced sheet to the locked sheet. In all the joints fretting resulted in the initiation and propagation of fatigue cracks at the interfaces. Increasing sheet thickness could decrease the size and degree of fretting at the interface between the two riveted sheets.

AB - This article deals mainly with the influence of sheet thickness on the fatigue behavior and fretting of single-lap self-piercing riveted joints in aluminum alloy 5052. The fatigue lives, failure modes, failure positions, fretting and fretting failure mechanism of the joints were investigated. A statistical analysis was performed to analyze the rationality of fatigue test data. The results showed that the fatigue life of the joints increases with increasing sheet thickness, but the increase of the fatigue life is limited. And, with increasing sheet thickness the fatigue failure positions transferred from the pierced sheet to the locked sheet. In all the joints fretting resulted in the initiation and propagation of fatigue cracks at the interfaces. Increasing sheet thickness could decrease the size and degree of fretting at the interface between the two riveted sheets.

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KW - Fretting

KW - Fretting failure mechanism

KW - Self-piercing riveting

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