Fatigue Failure Analysis of Carbon Steel Electromotor Shaft
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 583
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شناسه ملی سند علمی:
IMES12_321
تاریخ نمایه سازی: 11 اردیبهشت 1398
چکیده مقاله:
to transfer power of an electromotor to various equipment. The most common material shaft for electromotor is AISI 1045 carbon steel. In this study failure causes of an electromotor shaft was investigated. Chemical and metallographic analysis, hardness measurements and scanning electron microscopy (SEM) were performed to determine causes of the failure. The microstructure evaluations showed ferritic-pearlitic microstructure in the area behind the fracture surface was heterogeneous. Fracture surface evaluation by SEM revealed that the fatigue was the failure mechanism of the shaft. However, the value of design stress was lower than the calculated stress fatigue limit. According to Miner equation, the percentage of the consumed fatigue life of the shaft in the first two years of its operation was greater than that in the second two years. It was concluded that the shaft failure occurred due to termination of its fatigue life.
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نویسندگان
Azin Ahmadi
Researcher, Industrial Environmental Protection Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
Akram Nouri Delavar
Researcher, Industrial Environmental Protection Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
Amir Pasha
Researcher, Industrial Environmental Protection Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
Mohammad Shayegani Akmal
Researcher, Industrial Environmental Protection Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran