LOW-CYCLIC HYSTERESIS ENERGY FOR WELDED JOINT WITH MECHANICAL HETEROGENEITY

Acta Metall Sin

1993, Vol. 29

Issue (7): 44-50 DOI:

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LOW-CYCLIC HYSTERESIS ENERGY FOR WELDED JOINT WITH MECHANICAL HETEROGENEITY

CHENG Guangxu;KUANG Zhenbang;LOU Zhiwen Xi'an Jiaotong UniversityDepartment of Chemical Engineering; Xi'an Jiaotong University; Xi'an 710049

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CHENG Guangxu;KUANG Zhenbang;LOU Zhiwen Xi'an Jiaotong UniversityDepartment of Chemical Engineering; Xi'an Jiaotong University; Xi'an 710049. LOW-CYCLIC HYSTERESIS ENERGY FOR WELDED JOINT WITH MECHANICAL HETEROGENEITY. Acta Metall Sin, 1993, 29(7): 44-50.

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Abstract The cyclic hysteresis loops and their variation rules of base metal, weld metaland heat-affected zone for 16MnR pressure vessel steel were investigated by low-cycle fa-tigue tests. The definition of fatigue failure for welded joint was proposed, and the experimen-tal relations of cyclic hysteresis energy or total absorbed energy to failure vs the fatigue lifewere established. Finally, the effect of welding mechanical heterogeneity to fatigue damagewas discussed.

Key words: welded joint fatigue cyclic hysteresis energy

Received: 18 July 1993

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