Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL086027 |
Toward Robust and Predictive Geodynamic Modeling: The Way Forward in Frictional Plasticity | |
Duretz, Thibault1,2; de Borst, Rene3; Yamato, Philippe1,4; Le Pourhiet, Laetitia5 | |
2020-03-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Switzerland; England |
英文摘要 | Strain localization is a fundamental characteristic of plate tectonics. The resulting deformation structures shape the margins of continents and the internal structure of tectonic plates. To model the occurrence of faulting, geodynamic models generally rely on frictional plasticity. Frictional plasticity is normally embedded in visco-plastic (V-P) or visco-elasto-plastic (V-E-P) rheologies. This poses some fundamental issues, such as the difficulty, or often inability, to obtain a converged equilibrium state and a severe grid sensitivity. Here, we study shear banding at crustal-scale using a visco-elasto-viscoplastic (V-E-VP) model. We show that this rheology allows to accurately satisfy equilibrium, leads to shear band patterns that converge upon mesh refinement, and preserves characteristic shear band angles. Moreover, a comparison with analytic models and laboratory data reveals that V-E-VP rheology captures first-order characteristics of frictional plasticity. V-E-VP models thus overcomes limitations of V-P and V-E-P models and appears as an attractive alternative for geodynamic modeling. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000529112700034 |
WOS关键词 | SHEAR BANDS ; LITHOSPHERIC EXTENSION ; STRAIN LOCALIZATION ; NUMERICAL-MODELS ; DEFORMATION ; STOKES ; FORMULATIONS ; EFFICIENT ; SOLVERS ; SYSTEMS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/279777 |
专题 | 气候变化 |
作者单位 | 1.Univ Rennes, CNRS, Geosci Rennes, UMR 6118, Rennes, France; 2.Univ Lausanne, Inst Sci Terre, Lausanne, Switzerland; 3.Univ Sheffield, Dept Civil & Struct Engn, Sheffield, S Yorkshire, England; 4.IUF, Paris, France; 5.UPMC Univ Paris 06, Sorbonne Univ, CNRS, Inst Sci Terre Paris iSTeP, Paris, France |
推荐引用方式 GB/T 7714 | Duretz, Thibault,de Borst, Rene,Yamato, Philippe,et al. Toward Robust and Predictive Geodynamic Modeling: The Way Forward in Frictional Plasticity[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(5). |
APA | Duretz, Thibault,de Borst, Rene,Yamato, Philippe,&Le Pourhiet, Laetitia.(2020).Toward Robust and Predictive Geodynamic Modeling: The Way Forward in Frictional Plasticity.GEOPHYSICAL RESEARCH LETTERS,47(5). |
MLA | Duretz, Thibault,et al."Toward Robust and Predictive Geodynamic Modeling: The Way Forward in Frictional Plasticity".GEOPHYSICAL RESEARCH LETTERS 47.5(2020). |
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