کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
286337 509253 2007 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fatigue life prediction of heavy mining equipment. Part 1: Fatigue load assessment and crack growth rate tests
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Fatigue life prediction of heavy mining equipment. Part 1: Fatigue load assessment and crack growth rate tests
چکیده انگلیسی

Frequent fatigue failure of heavy mining equipment has created the need for fatigue life prediction of its cracked components. As the first step, field monitoring of a cable shovel boom that had a history of chronic fatigue cracking was conducted. A set of load spectra for the boom was constructed from the collected field data. A finite element model of the boom was prepared and calibrated against the test data to predict the stress and strain histories. Eight crack growth rate coupon tests were carried out to obtain the fatigue properties of the material used. Constant amplitude equivalent stress ranges were calculated based on Palmgren–Miner’s cumulative damage rule and crack growth rate tests results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Constructional Steel Research - Volume 63, Issue 11, November 2007, Pages 1494–1505
نویسندگان
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