A link-up resulted fatigue crack branching in Al–Cu–Mg alloy

Songsong Lu; Rui Bao; Ting Zhang; Binjun Fei

doi:10.1016/j.ijfatigue.2016.02.036

A link-up resulted fatigue crack branching in Al–Cu–Mg alloy

Songsong Lu
, Rui Bao^*
, Ting Zhang
, Binjun Fei

^*此作品的通讯作者

航空科学与工程学院

Beihang University

科研成果: 期刊稿件 › 文章 › 同行评审

11 引用（Scopus）

摘要

Fatigue crack branching phenomena in Al–Cu–Mg alloy 2324-T39 are studied. Both spectrum and constant amplitude loading cases are examined. A novel type of crack branching process and mechanism is present, which results from the link-up of the secondary crack with the main crack. The grain shapes in 2324-T39 are different from those in the 2024 and 2524 alloys, and their interaction with the plastic zone size contributes to the appearance of this type of crack branching. FE analysis shows that the surface secondary crack is located near the plastic zone boundaries of the main crack.

源语言	英语
页（从-至）	459-469
页数	11
期刊	International Journal of Fatigue
卷	92
DOI	https://doi.org/10.1016/j.ijfatigue.2016.02.036
出版状态	已出版 - 1 11月 2016

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title = "A link-up resulted fatigue crack branching in Al–Cu–Mg alloy",

abstract = "Fatigue crack branching phenomena in Al–Cu–Mg alloy 2324-T39 are studied. Both spectrum and constant amplitude loading cases are examined. A novel type of crack branching process and mechanism is present, which results from the link-up of the secondary crack with the main crack. The grain shapes in 2324-T39 are different from those in the 2024 and 2524 alloys, and their interaction with the plastic zone size contributes to the appearance of this type of crack branching. FE analysis shows that the surface secondary crack is located near the plastic zone boundaries of the main crack.",

keywords = "Al–Cu–Mg alloy, Crack branching, Fatigue crack growth, Spectrum loading",

author = "Songsong Lu and Rui Bao and Ting Zhang and Binjun Fei",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

year = "2016",

month = nov,

day = "1",

doi = "10.1016/j.ijfatigue.2016.02.036",

language = "英语",

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TY - JOUR

T1 - A link-up resulted fatigue crack branching in Al–Cu–Mg alloy

AU - Lu, Songsong

AU - Bao, Rui

AU - Zhang, Ting

AU - Fei, Binjun

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Fatigue crack branching phenomena in Al–Cu–Mg alloy 2324-T39 are studied. Both spectrum and constant amplitude loading cases are examined. A novel type of crack branching process and mechanism is present, which results from the link-up of the secondary crack with the main crack. The grain shapes in 2324-T39 are different from those in the 2024 and 2524 alloys, and their interaction with the plastic zone size contributes to the appearance of this type of crack branching. FE analysis shows that the surface secondary crack is located near the plastic zone boundaries of the main crack.

AB - Fatigue crack branching phenomena in Al–Cu–Mg alloy 2324-T39 are studied. Both spectrum and constant amplitude loading cases are examined. A novel type of crack branching process and mechanism is present, which results from the link-up of the secondary crack with the main crack. The grain shapes in 2324-T39 are different from those in the 2024 and 2524 alloys, and their interaction with the plastic zone size contributes to the appearance of this type of crack branching. FE analysis shows that the surface secondary crack is located near the plastic zone boundaries of the main crack.

KW - Al–Cu–Mg alloy

KW - Crack branching

KW - Fatigue crack growth

KW - Spectrum loading

UR - https://www.scopus.com/pages/publications/84959377953

U2 - 10.1016/j.ijfatigue.2016.02.036

DO - 10.1016/j.ijfatigue.2016.02.036

M3 - 文章

AN - SCOPUS:84959377953

SN - 0142-1123

VL - 92

SP - 459

EP - 469

JO - International Journal of Fatigue

JF - International Journal of Fatigue

ER -

A link-up resulted fatigue crack branching in Al–Cu–Mg alloy

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