✦ LIBER ✦

Secondary cracking during surface crack growth under tensile fatigue loading

✍ Scribed by Jin-Bo Bai; Si-Yi Chen

Publisher: Elsevier Science
Year: 1988
Tongue: English
Weight: 695 KB
Volume: 30
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(88)90220-2

No coin nor oath required. For personal study only.

✦ Synopsis

Microscopic examination of the secondary cracking process during surface crack growth in LY12-R aluminum alloy under tensile fatigue loading was employed. Secondary cracking behaviors in three special directions were compared with each other and correlated with the macroscopic behavior of the main crack. Two more explanatory mechanisms were suggested. A new parameter, mean secondary crack length, L, is used to help gain insight into secondary cracking process.

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