کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1637532 | 1516969 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fatigue behavior of aluminum stiffened plate subjected to random vibration loading
ترجمه فارسی عنوان
رفتار خستگی آلومینیوم سخت شده صفحه تحت بارگیری لرزش تصادفی
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کلمات کلیدی
ورق سفت و سخت خستگی ارتعاش آزمایش لرزش، زندگی خستگی فرکانس طبیعی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
Vibration tests were carried out on three types of stiffened aluminum plates with fully clamped boundaries under random base excitation. During the test, the response of the specimens was monitored using strain gauges. Based on the strain history, the accumulation of fatigue damage of the stiffened plates was estimated by means of the rainflow cycle counting technique and the Miner linear damage accumulation model in the time domain. Utilizing the change of natural frequencies, a nonlinear model was fitted for predicting the fatigue damage of plate and then the foregone failure criterion of 5% reduction in natural frequency is improved. The influence of section and spacing of the stiffeners on the vibration fatigue behavior of the aluminum plate was investigated. The results show that the fatigue life of aluminum plate increases with adding either T or L section riveted stiffeners. With the same cross-sectional area of stiffener, the T section stiffened plate shows longer fatigue life than L section stiffened plate. Meanwhile, the vibration fatigue life also shows great sensitivity to the spacing between the stiffeners.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 24, Issue 5, May 2014, Pages 1331-1336
Journal: Transactions of Nonferrous Metals Society of China - Volume 24, Issue 5, May 2014, Pages 1331-1336
نویسندگان
Hai-tao HU, Yu-long LI, Tao SUO, Feng ZHAO, Ying-gang MIAO, Pu XUE, Qiong DENG,