دورية أكاديمية
Experimental Study on the Evolution Law of Mechanical Properties of High Temperature Granite under Different Cooling Modes
| العنوان: | Experimental Study on the Evolution Law of Mechanical Properties of High Temperature Granite under Different Cooling Modes |
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| المؤلفون: | Guoxu XIN, Baoping XI, Xinxin YANG, Yunsheng DONG, Shuixin HE, Yangchun WU |
| المصدر: | Taiyuan Ligong Daxue xuebao, Vol 55, Iss 2, Pp 267-275 (2024) |
| بيانات النشر: | Editorial Office of Journal of Taiyuan University of Technology, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Chemical engineering LCC:Materials of engineering and construction. Mechanics of materials LCC:Technology |
| مصطلحات موضوعية: | high temperature granite, cooling mode, thermal shock, mechanical properties, evolution law, Chemical engineering, TP155-156, Materials of engineering and construction. Mechanics of materials, TA401-492, Technology |
| الوصف: | Purposes The mechanical properties of granite in the same high temperature state under different cooling modes (thermal shock cooling in water at 20 ℃ and natural cooling in air at 20 ℃) are different. Methods By using the laboratory self-developed thermal shock fracture experimental platform, uniaxial compression, Brazilian splitting, and variable-angle shearing (45°, 55°, 65°) were carried out on granite in different temperature states (25-600 ℃) under two cooling modes. To test its uniaxial compressive strength, stress-strain curve, peak strain, tensile strength, cohesion c, internal friction angle φ and other macro-mechanical parameters. Besides, the evolution of the mechanical properties of high-temperature granite under different cooling modes was studied. Findings The research results show that: 1) the cooling mode has a great influence on the uniaxial compressive strength, tensile strength, and cohesion c, but has little effect on the internal friction angle; 2) The mechanical strength of granite at the same high temperature deteriorates more seriously with thermal shock cooling in water at 20 ℃, and 300 ℃ is the threshold temperature for the difference between the two cooling modes; 3) From 25 ℃ to 600 ℃, compared with natural cooling, thermal shock cooling caused compressive strength, tensile strength, and shear strength (cohesive force) deteriorations of granite which are 51.7%, 33%, and 27.6%, respectively, showing that the cooling mode affects the mechanical strength of granite in descending order: tensile strength, shear strength, and compressive strength. Conclusions The research results can provide test reference for related projects. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Chinese |
| تدمد: | 1007-9432 |
| Relation: | https://tyutjournal.tyut.edu.cn/englishpaper/show-2268.html; https://doaj.org/toc/1007-9432 |
| DOI: | 10.16355/j.tyut.1007-9432.20220099 |
| URL الوصول: | https://doaj.org/article/2256725bb5354cb5843bef31cd8eb274 |
| رقم الأكسشن: | edsdoj.2256725bb5354cb5843bef31cd8eb274 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 10079432 |
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| DOI: | 10.16355/j.tyut.1007-9432.20220099 |