A NEW LOW CYCLE FATIGUE LIFETIME PREDICTION MODEL FOR MAGNESIUM ALLOY BASED ON THE MODIFIED PLASTIC STRAIN ENERGY APPROACH

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AZADI M.; FARRAHI GH.H.

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Paper Information

Journal: JOURNAL OF SIMULATION AND ANALYSIS OF NOVEL TECHNOLOGIES IN MECHANICAL ENGINEERING (JOURNAL OF SOLID MECHANICS IN ENGINEERING) Year:2013 | Volume:6 | Issue:1 (13) Page(s): 63-75

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Title

A NEW LOW CYCLE FATIGUE LIFETIME PREDICTION MODEL FOR MAGNESIUM ALLOY BASED ON THE MODIFIED PLASTIC STRAIN ENERGY APPROACH

Author(s)

AZADI M. | FARRAHI GH.H. | Issue Writer Certificate

Keywords

CYLINDER HEADQ2

LOW CYCLE FATIGUEQ2

FATIGUE LIFETIME PREDICTION MODELQ2

MAGNESIUM ALLOYQ1

ENERGY APPROACHQ1

Abstract

Nowadays, the technology intends to use materials such as MAGNESIUM ALLOYs due to their high strength to weight ratio in engine components. As usual, engine CYLINDER HEADs and blocks have been made of various types of cast irons and aluminum alloys. However, MAGNESIUM ALLOYs have physical and mechanical properties near to aluminum alloys and reduce the weight up to 40 percents. In this article, a new LOW CYCLE FATIGUE lifetime prediction model is presented for a MAGNESIUM ALLOY based on the ENERGY APPROACH and to obtain this objective, the results of LOW CYCLE FATIGUE tests on the magnesium specimens are used. The presented model has lower material constants compared to other criteria. It also has proper accuracy; because in ENERGY APPROACHes, a plastic work-lifetime relation is used where the plastic work is the multiple of stress and plastic strain. According to cyclic softening behaviors of magnesium and aluminum alloys, plastic strain energy can be a proper selection, because of being constant the product value of stress and plastic strain during fatigue loadings. In addition, the effect of mean stress is applied to the LOW CYCLE FATIGUE lifetime prediction model by using a correction factor. Results of the presented models showed a good compasision to the experimental ones.

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APA: Copy

AZADI, M., & FARRAHI, GH.H.. (2013). A NEW LOW CYCLE FATIGUE LIFETIME PREDICTION MODEL FOR MAGNESIUM ALLOY BASED ON THE MODIFIED PLASTIC STRAIN ENERGY APPROACH. JOURNAL OF SIMULATION AND ANALYSIS OF NOVEL TECHNOLOGIES IN MECHANICAL ENGINEERING (JOURNAL OF SOLID MECHANICS IN ENGINEERING), 6(1 (13)), 63-75. SID. https://sid.ir/paper/171444/en

Vancouver: Copy

AZADI M., FARRAHI GH.H.. A NEW LOW CYCLE FATIGUE LIFETIME PREDICTION MODEL FOR MAGNESIUM ALLOY BASED ON THE MODIFIED PLASTIC STRAIN ENERGY APPROACH. JOURNAL OF SIMULATION AND ANALYSIS OF NOVEL TECHNOLOGIES IN MECHANICAL ENGINEERING (JOURNAL OF SOLID MECHANICS IN ENGINEERING)[Internet]. 2013;6(1 (13)):63-75. Available from: https://sid.ir/paper/171444/en

IEEE: Copy

M. AZADI, and GH.H. FARRAHI, “A NEW LOW CYCLE FATIGUE LIFETIME PREDICTION MODEL FOR MAGNESIUM ALLOY BASED ON THE MODIFIED PLASTIC STRAIN ENERGY APPROACH,” JOURNAL OF SIMULATION AND ANALYSIS OF NOVEL TECHNOLOGIES IN MECHANICAL ENGINEERING (JOURNAL OF SOLID MECHANICS IN ENGINEERING), vol. 6, no. 1 (13), pp. 63–75, 2013, [Online]. Available: https://sid.ir/paper/171444/en

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