کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1635571 1516943 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparison of mechanical properties in high temperature and thermal treatment granite
ترجمه فارسی عنوان
مقایسه خواص مکانیکی گرانیت گرمایش با درجه حرارت بالا و حرارتی
کلمات کلیدی
سنگ گرانیت، عملیات حرارتی، اثر حرارت بالا، خواص مکانیکی استاتیک، خواص شکست
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی

Static mechanical experiments were carried out on granite after and under different temperatures using an electro-hydraulic and servo-controlled material testing machine with a heating device. Variations in obvious form, stress-strain curve, peak strength, peak strain and elastic modulus with temperature were analyzed and the essence of rock failure modes was explored. The results indicate that, compared with granite after the high temperature treatment, the brittle-ductile transition critical temperature is lower, the densification stage is longer, the elastic modulus is smaller and the damage is larger under high temperature. In addition, the peak stress is lower and the peak strain is greater, but both of them change more obviously with the increase of temperature compared with that of granite after the high temperature treatment. Furthermore, the failure modes of granite after the high temperature treatment and under high temperature show a remarkable difference. Below 100 °C, the failure modes of granite under both conditions are the same, presenting splitting failure. However, after 100 °C, the failure modes of granite after the high temperature treatment and under high temperature present splitting failure and shear failure, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 26, Issue 7, July 2016, Pages 1926–1937
نویسندگان
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