CRACKING BEHAVIOUR AND MECHANICALANALYSIS ON DUPLEX STRUCTUREUNDER CYCLIC LOADING

Acta Metall Sin

1991, Vol. 27

Issue (5): 39-44 DOI:

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CRACKING BEHAVIOUR AND MECHANICALANALYSIS ON DUPLEX STRUCTUREUNDER CYCLIC LOADING

WANG Zhaoxia;CHAI Donglang;LIU Jinghua Xi'an Jiaotong University

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WANG Zhaoxia;CHAI Donglang;LIU Jinghua Xi'an Jiaotong University. CRACKING BEHAVIOUR AND MECHANICALANALYSIS ON DUPLEX STRUCTUREUNDER CYCLIC LOADING. Acta Metall Sin, 1991, 27(5): 39-44.

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Abstract On the basis of stress-strain analysis under cyclic loading, the mechanism, origin and cyclic number of micro-crack nucleation of duplex structure materials, saying ferrite plus martensite, have been experimentally studied and calculated.Both results are in fair mutual agreement. The morphology, distribution, size and relative quantities of the constitutional phase, especially strengthening phase, as well as the stress-strain distribution and variation in the micro-region are directly influential in the origin of micro-crack in duplex structure materials.

Key words: stress-strain analysis crack fatigue

Received: 18 May 1991

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1991/V27/I5/39

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