کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
768751 1462995 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Failure analysis of a petrochemical plant reducing gear
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Failure analysis of a petrochemical plant reducing gear
چکیده انگلیسی

This study aims to investigate the cause of failure of an 845 mm external diameter reducing gear that operated during 30 months in a petrochemical plant. The failure analysis procedure included material characterisation (microstructure, chemical composition and microhardness), fracture surface evaluation, and stress distribution by finite elements on critical regions of the gear. Fracture mechanics and fatigue crack growth were also used to develop a da/dN–ΔK curve and then determine the gear material crack growth resistance. Results indicate that the gear was not properly manufactured and failure occurred as a result of a fatigue process facilitated by a manufacturing defect.


► Failure of spur gear was analyzed to identify the cause.
► Finite element modeling and fatigue crack growth testing were performed to validate proposed failure mode.
► Fatigue failure was a result fabrication defect with same type of crack observed similar components.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Failure Analysis - Volume 29, April 2013, Pages 56–61
نویسندگان
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