气候变化领域集成服务门户(CCPortal): Assessing Energy Budget of Laboratory Fault Slip Using Rotary Shear Experiments and Micro-Computed Tomography

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DOI	10.1029/2019GL084787
	Assessing Energy Budget of Laboratory Fault Slip Using Rotary Shear Experiments and Micro-Computed Tomography
	Zhao Q.; Glaser S.D.; Tisato N.; Grasselli G.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:1
英文摘要	Quantitative assessment of the energy budget of earthquake events is one of the key aspects for understanding the physics of earthquakes. Investigation of laboratory fault slips under controlled conditions can provide insights on this important aspect of the natural and induced earthquakes. We conducted a rotary shear experiment under X-ray micro-computed tomography, which allowed in situ and operando measurement of macroscopic stresses and imaging of the newly formed fractures inside the sample. We estimate each component of the energy budget and found that friction energy loss (EF), fracture energy (EG), and radiated energy (ER) account for 70.16%, 15.68%, and 14.15% of the total energy budget, respectively. Quantitative analysis of the micro-computed tomography images indicates that the energy consumed by creating slip-induced off-fault fractures (Ef G) accounts for only 0.3% of the total energy, less than 2% of the total EG. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Budget control; Computerized tomography; Earthquakes; Energy dissipation; Fracture; Fracture energy; Learning systems; Controlled conditions; Energy budgets; Macroscopic stress; Micro CT; Microcomputed tomography; Quantitative assessments; Radiated energies; X ray micro-computed tomography; Fault slips; assessment method; detection method; energy budget; experimental design; laboratory method; machine learning
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170857
作者单位	Department of Civil and Environmental Engineering, University of California, Berkeley, CA, United States; Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX, United States; Department of Civil and Mineral Engineering, University of Toronto, Toronto, ON, Canada
推荐引用方式 GB/T 7714	Zhao Q.,Glaser S.D.,Tisato N.,et al. Assessing Energy Budget of Laboratory Fault Slip Using Rotary Shear Experiments and Micro-Computed Tomography[J],2020,47(1).
APA	Zhao Q.,Glaser S.D.,Tisato N.,&Grasselli G..(2020).Assessing Energy Budget of Laboratory Fault Slip Using Rotary Shear Experiments and Micro-Computed Tomography.Geophysical Research Letters,47(1).
MLA	Zhao Q.,et al."Assessing Energy Budget of Laboratory Fault Slip Using Rotary Shear Experiments and Micro-Computed Tomography".Geophysical Research Letters 47.1(2020).