کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6718560 503532 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identifying fatigue failure in asphalt binder time sweep tests
ترجمه فارسی عنوان
شناسایی نارسایی خستگی در آزمایشهای جابجایی آسفالت
کلمات کلیدی
خستگی گیرنده آسفالت، آسیب خزش تعریف شکست انرژی مضاعف،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
Identification of fatigue failure of asphalt binder in time sweep test results remains a question crucial to asphalt binder fatigue performance evaluation and prediction. This paper presents a comparison of different analysis approaches for defining the occurrence of fatigue failure during time sweep fatigue tests conducted in both control-displacement and control-stress loading modes. The candidate failure definitions evaluated include the traditional 50% reduction in stiffness parameter (S0.5), dissipated energy indicators including the dissipated energy ratio (DER) and the ratio of dissipated energy change (RDEC), as well as two phenomenological parameters corresponding to the peak in S × N and peak in phase angle. Both phenomenological parameters and dissipated energy based indicators were found to be effective in defining fatigue failure. Statistical analysis results further indicate that maximum S × N, maximum phase angle and RDEC approach provide equivalent fatigue life results, however, peak in S × N is strongly recommended for detecting fatigue failure of asphalt binder in time sweep tests because it is easy to calculate and well defined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 121, 15 September 2016, Pages 535-546
نویسندگان
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