Acoustic Emission Response Characteristics of Anthracitic Coal under Uniaxial Compression
المؤلفون المشاركون
Wang, Gongda
Du, Feng
Wang, Haiyan
Ma, Ji
Zhang, Guojun
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-09-25
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
The damage evolution of coal is accompanied by the generation of acoustic emission (AE) signal.
Through the analysis and research of the AE response characteristics of coal deformation and failure, it is helpful to reveal the initiation, propagation, and fracture evolution of microcracks in coal.
In this work, taking the anthracite coal as research object, the basic mechanical parameters of the coal samples were obtained by ultrasonic tests and uniaxial compression experiments.
Meanwhile, the AE response characteristics of coal samples during uniaxial compression were obtained through AE experiments.
The results show that when the density is low, the wave velocity of the coal sample decreases with the increase of density.
When the density is higher than a certain value, the wave velocity of the coal sample increases with the increase of density.
Through the measurement of ultrasonic wave velocity, it is found that there is some nonuniformity and anisotropy in raw coal samples.
The ring counts, energy counts, and AE events with time in uniaxial compression process have approximately normal distribution.
The AE events are concentrated in the elastic stage and yield stage, and the energy amplitude of AE events is higher in the plastic stage.
Compared with the ring counts and energy counts, the AE events have a good positioning function, which can better reflect the evolution of internal cracks of coal samples during uniaxial compression.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Wang, Haiyan& Wang, Gongda& Zhang, Guojun& Du, Feng& Ma, Ji. 2020. Acoustic Emission Response Characteristics of Anthracitic Coal under Uniaxial Compression. Shock and Vibration،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1213113
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Wang, Haiyan…[et al.]. Acoustic Emission Response Characteristics of Anthracitic Coal under Uniaxial Compression. Shock and Vibration No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1213113
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Wang, Haiyan& Wang, Gongda& Zhang, Guojun& Du, Feng& Ma, Ji. Acoustic Emission Response Characteristics of Anthracitic Coal under Uniaxial Compression. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1213113
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1213113
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