Strain Rate Effect on Acoustic Emission Characteristics and Energy Mechanisms of Karst Limestone under Uniaxial Compression
المؤلفون المشاركون
Chen, Jianxun
Luo, Yanbin
Li, Yao
Guo, Jiaqi
Wang, Qingsong
Liu, Qin
Wang, Hongyu
المصدر
Advances in Materials Science and Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-13، 13ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-02-14
دولة النشر
مصر
عدد الصفحات
13
الملخص EN
In this paper, the strain rate effect on mechanical properties, failure modes, acoustic emission (AE) characteristics, and energy mechanism of the karst limestone was analyzed based on uniaxial compression tests with different strain rates (5 × 10−6–5 × 10−4/s).
The results showed that the peak strength increased linearly and peak strain increased quadratically with the logarithm value of the strain rate.
Moreover, the strain rate effect on elastic modulus was not significant.
Under low strain rates, the rock was damaged seriously, AE signals appeared continuously, and the cumulative number of AE signals was high.
Under high strain rates, the total quantity of the macroscopic cracks decreased, but the crack length extended with better coalescence.
The AE peak significantly increased under high strain rates, while the cumulative AE activity significantly reduced.
The energy evolution of the karst limestone failure process had significant stage characteristics, and the strain energy ratio presented an S-shape.
The maximum value of the elastic strain energy at peak stress showed a linear relationship with the logarithm value of the strain rate.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Wang, Qingsong& Chen, Jianxun& Guo, Jiaqi& Luo, Yanbin& Li, Yao& Wang, Hongyu…[et al.]. 2020. Strain Rate Effect on Acoustic Emission Characteristics and Energy Mechanisms of Karst Limestone under Uniaxial Compression. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1128956
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Wang, Qingsong…[et al.]. Strain Rate Effect on Acoustic Emission Characteristics and Energy Mechanisms of Karst Limestone under Uniaxial Compression. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1128956
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Wang, Qingsong& Chen, Jianxun& Guo, Jiaqi& Luo, Yanbin& Li, Yao& Wang, Hongyu…[et al.]. Strain Rate Effect on Acoustic Emission Characteristics and Energy Mechanisms of Karst Limestone under Uniaxial Compression. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1128956
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1128956
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