کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1636719 1516954 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical behavior of red sandstone under cyclic point loading
ترجمه فارسی عنوان
رفتار مکانیکی ماسه سنگ قرمز تحت بارگذاری نقطه چرخه
کلمات کلیدی
ماسه سنگ قرمز، بارگذاری نقطه چرخه، زندگی خستگی حلقه پسماند، نفوذ، اثر آموزش، اثر حافظه،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی
The mechanical properties of red sandstone subjected to cyclic point loading were investigated. Tests were conducted using MTS servohydraulic landmark test system, under cyclic loadings with constant amplitudes and increasing multi-level amplitudes. The frequencies range from 0.1 to 5 Hz and lower limit load ratios range from 0 to 0.60. Laboratory investigations were performed to find the effect of the frequency and the lower limit load ratio on the fatigue life and hysteresis properties of sandstone. The results show that the fatigue life of sandstone decreases first and then increases with the increase of frequency and lower limit load ratio. Under the same cycle number, the spacing between hysteresis loops increases with rising frequency and decreasing lower limit load ratio. The existence of “training” and “memory” effects in red sandstone under cyclic point loading was proved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 25, Issue 8, August 2015, Pages 2708-2717
نویسندگان
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