Energy Evolution and Mechanical Features of Granite Subjected to Triaxial Loading-Unloading Cycles
المؤلفون المشاركون
Pei, Feng
Ji, Hongguang
Zhang, Tongzhao
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-01-06
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
Energy evolution varies during the whole process of rock deformation, and mechanical parameters are markedly altered under cyclic loading and unloading.
In order to investigate the effects of confining pressure on energy evolution and mechanical parameters, cyclic loading and unloading experiments were performed for granite under six different confining pressures.
The experiment revealed the confining pressure effect on variation and allocation pattern of energy and mechanical characteristics.
Four characteristic energy parameters, namely, storage energy rock, storage energy limit, energy storage ratio, and energy dissipation ratio, were proposed to describe energy storage and dissipation properties of rock.
Elastic modulus and dissipation ratio presented a downward “U” and “U”-shaped trends, respectively, with loading and unloading cycles, while Poisson’s ratio increased linearly at the same time.
Elastic energy was accumulated mainly before peak stress, while the energy dissipation and release were dominant after the peak strength.
As the confining pressure increased, efficiency of energy accumulation and storage limit improved.
An exponential function was proposed to express the relationship between the energy storage limit and confining pressure.
Dissipation energy increased nonlinearly with the strain, and the volume dilatancy point defined the turning point from a relatively slow growth to an accelerated growth of dissipation energy.
The dilatancy point can be used as an important indication for the rapid development of dissipation energy.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Pei, Feng& Ji, Hongguang& Zhang, Tongzhao. 2019. Energy Evolution and Mechanical Features of Granite Subjected to Triaxial Loading-Unloading Cycles. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1117592
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Pei, Feng…[et al.]. Energy Evolution and Mechanical Features of Granite Subjected to Triaxial Loading-Unloading Cycles. Advances in Civil Engineering No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1117592
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Pei, Feng& Ji, Hongguang& Zhang, Tongzhao. Energy Evolution and Mechanical Features of Granite Subjected to Triaxial Loading-Unloading Cycles. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1117592
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1117592
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