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DOI	10.1038/s41467-021-22806-9
	Unconventional singularities and energy balance in frictional rupture
	Brener E.A.; Bouchbinder E.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	A widespread framework for understanding frictional rupture, such as earthquakes along geological faults, invokes an analogy to ordinary cracks. A distinct feature of ordinary cracks is that their near edge fields are characterized by a square root singularity, which is intimately related to the existence of strict dissipation-related lengthscale separation and edge-localized energy balance. Yet, the interrelations between the singularity order, lengthscale separation and edge-localized energy balance in frictional rupture are not fully understood, even in physical situations in which the conventional square root singularity remains approximately valid. Here we develop a macroscopic theory that shows that the generic rate-dependent nature of friction leads to deviations from the conventional singularity, and that even if this deviation is small, significant non-edge-localized rupture-related dissipation emerges. The physical origin of the latter, which is predicted to vanish identically in the crack analogy, is the breakdown of scale separation that leads an accumulated spatially-extended dissipation, involving macroscopic scales. The non-edge-localized rupture-related dissipation is also predicted to be position dependent. The theoretical predictions are quantitatively supported by available numerical results, and their possible implications for earthquake physics are discussed. © 2021, The Author(s).
语种	英语
scopus关键词	dip-slip fault; earthquake event; earthquake rupture; energy balance; fault; friction; Article; conceptual framework; earthquake; energy balance; friction; human; quantitative analysis; theoretical study
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251478
作者单位	Peter Grünberg Institut, Forschungszentrum Jülich, Jülich, Germany; Institute for Energy and Climate Research, Forschungszentrum Jülich, Jülich, Germany; Chemical and Biological Physics Department, Weizmann Institute of Science, Rehovot, Israel
推荐引用方式 GB/T 7714	Brener E.A.,Bouchbinder E.. Unconventional singularities and energy balance in frictional rupture[J],2021,12(1).
APA	Brener E.A.,&Bouchbinder E..(2021).Unconventional singularities and energy balance in frictional rupture.Nature Communications,12(1).
MLA	Brener E.A.,et al."Unconventional singularities and energy balance in frictional rupture".Nature Communications 12.1(2021).