HEAT ENERGY DISSIPATION IN FATIGUE DAMAGE PROCESS OF MATERIALS

Acta Metall Sin

1992, Vol. 28

Issue (4): 21-27 DOI:

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HEAT ENERGY DISSIPATION IN FATIGUE DAMAGE PROCESS OF MATERIALS

TUNG Xiaoyan;WANG Dejun;XU Hao Northweestern Polytechnical University; Xi'an; Northeast University of Technology; Shenyang

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TUNG Xiaoyan;WANG Dejun;XU Hao Northweestern Polytechnical University; Xi'an; Northeast University of Technology; Shenyang. HEAT ENERGY DISSIPATION IN FATIGUE DAMAGE PROCESS OF MATERIALS. Acta Metall Sin, 1992, 28(4): 21-27.

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Abstract Using the dissipated energy as an essential parameter, the energy dissipativestructure in process of fatigue damage of materials has been established. Throughthermodynamic analysis for irreversible energy dissipation in fatigue damage process, the heatdissipative variations in cyclic loading process as well as in a cycle have been systematically stu-died on the basis of low cycle fatigue tests and infrared measurement of self-heatingthermography. Meanwhile, the cyclic hysteresis energy and efficicent energy dissipation (storedenergy) have been proposed during fatigue damage process.

Key words: fatigue damage energy dissipation cycle loading process

Received: 18 April 1992

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1992/V28/I4/21

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