Effects of Heating Rate on the Dynamic Tensile Mechanical Properties of Coal Sandstone during Thermal Treatment
المؤلفون المشاركون
Zhang, Lianying
Wu, Yu
Mao, Xianbiao
Chen, Yanlong
Li, Ming
Pu, Hai
المصدر
العدد
المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2017-10-18
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
The effects of coal layered combustion and the heat injection rate on adjacent rock were examined in the process of underground coal gasification and coal-bed methane mining.
Dynamic Brazilian disk tests were conducted on coal sandstone at 800°C and slow cooling from different heating rates by means of a Split Hopkinson Pressure Bar (SHPB) test system.
It was discovered that thermal conditions had significant effects on the physical and mechanical properties of the sandstone including longitudinal wave velocity, density, and dynamic linear tensile strength; as the heating rates increased, the thermal expansion of the sandstone was enhanced and the damage degree increased.
Compared with sandstone at ambient temperature, the fracture process of heat-treated sandstone was more complicated.
After thermal treatment, the specimen had a large crack in the center and cracks on both sides caused by loading; the original cracks grew and mineral particle cracks, internal pore geometry, and other defects gradually appeared.
With increasing heating rates, the microscopic fracture mode transformed from ductile fracture to subbrittle fracture.
It was concluded that changes in the macroscopic mechanical properties of the sandstone were result from changes in the composition and microstructure.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Li, Ming& Mao, Xianbiao& Pu, Hai& Chen, Yanlong& Wu, Yu& Zhang, Lianying. 2017. Effects of Heating Rate on the Dynamic Tensile Mechanical Properties of Coal Sandstone during Thermal Treatment. Shock and Vibration،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1204429
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Li, Ming…[et al.]. Effects of Heating Rate on the Dynamic Tensile Mechanical Properties of Coal Sandstone during Thermal Treatment. Shock and Vibration No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1204429
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Li, Ming& Mao, Xianbiao& Pu, Hai& Chen, Yanlong& Wu, Yu& Zhang, Lianying. Effects of Heating Rate on the Dynamic Tensile Mechanical Properties of Coal Sandstone during Thermal Treatment. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1204429
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1204429
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر