A Thermal Damage Constitutive Model for Oil Shale Based on Weibull Statistical Theory
المؤلفون المشاركون
Zhao, Guijie
Chen, Chen
Yan, Huan
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-10-13
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
In this work, we first studied the thermal damage to typical rocks, assuming that the strength of thermally damaged rock microelements obeys a Weibull distribution and considering the influence of temperature on rock mechanical parameters; under the condition that microelement failure conforms to the Drucker–Prager criterion, the statistical thermal damage constitutive model of rocks after high-temperature exposure was established.
On this basis, conventional triaxial compression tests were carried out on oil shale specimens heated to different temperatures, and according to the results of these tests, the relationship between the temperature and parameters in the statistical thermal damage constitutive model was determined, and the thermal damage constitutive model for oil shale was established.
The results show that the thermal damage in oil shale increases with the increase of temperature; the damage variable is largest at 700°C, reaching 0.636; from room temperature to 700°C, the elastic modulus and Poisson’s ratio decrease by 62.66% and 64.57%, respectively; the theoretical stress-strain curve obtained from the model is in good agreement with the measured curves; the maximum difference between the two curves before peak strength is only 5 × 10−4; the model accurately reflects the deformation characteristics of oil shale at high temperature.
The research results are of practical significance to the underground in situ thermal processing of oil shale.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zhao, Guijie& Chen, Chen& Yan, Huan. 2019. A Thermal Damage Constitutive Model for Oil Shale Based on Weibull Statistical Theory. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1195856
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zhao, Guijie…[et al.]. A Thermal Damage Constitutive Model for Oil Shale Based on Weibull Statistical Theory. Mathematical Problems in Engineering No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1195856
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zhao, Guijie& Chen, Chen& Yan, Huan. A Thermal Damage Constitutive Model for Oil Shale Based on Weibull Statistical Theory. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1195856
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1195856
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