Experimental study of the stress effect on attenuation of normally incident P-wave through coal
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- 作者：Junjun Feng ; Enyuan Wang ; weycumt@126.com" class="auth_mail" title="E-mail the corresponding author ; Liang Chen ; Xuelong Li ; Zhaoyong Xu ; Guoai Li
- 关键词：Quality factor ; Energy attenuation ; Dynamic stress ; Crack closure model ; Split Hopkinson pressure bar
- 刊名：Journal of Applied Geophysics
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：132
- 期：Complete
- 页码：25-32
- 全文大小：1295 K
文摘
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P-wave attenuation across coal was studied by a split Hopkinson pressure bar system.
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A modified method was given to measure the energy attenuation of P-wave across coal.
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A crack closure model was proposed to link the crack closure length and stress.
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Stress effect on P-wave attenuation across coal was represented by a power function.