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Mechanics and Scaling of the Critical Slip Distance for Seismic Faulting

Mechanics and Scaling of the Critical Slip Distance for Seismic Faulting
地震断层临界滑移距离的力学和尺度
批准号：
9316082
负责人：
Chris Marone
金额：
$25.37万
依托单位：
Massachusetts Institute of Technology
依托单位国家：
美国
项目类别：
Continuing grant
财政年份：
1994
资助国家：
美国
项目状态：
已结题
起止时间：
1994-03-01 至 1997-08-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9316082&HistoricalAwards=false
关键词：
MechanicsScalingCriticalSlipDistance

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中文摘要
翻译
小行星9316082 PI将进行实验以确定临界滑动距离，该距离在确定破裂成核尺寸、地震矩释放的大小和最大地震地面加速度方面起着关键作用。 他将测量此参数的材料，法向应力和滑移率比以前的研究范围更广，将详细研究摩擦行为和本构参数的剪切内分形粗糙表面，并将系统地模拟收集的数据。 通过这种方式，他将发展对基本力学和物理过程的理解，并研究这些力学和过程如何与自然断层带中的力学和过程相关。 ****
英文摘要
9316082 Marone The PI will perform experiments to determine the critical slip distance, which plays a key role in determining the rupture nucleation dimension, the magnitude of the precursive moment release, and the maximum seismic ground acceleration. He will measure this parameter for a wider range of materials, normal stresses, and slip rates than previous studies, will investigate in detail the frictional behavior and constitutive parameters for shear within fractally-rough surfaces, and will systematically model the data collected. In this way, he will develop an understanding of the underlying mechanics and physical processes, and investigate how these mechanics and processes relate to those operative in natural fault zones. ****
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Collaborative Research: Investigating the interplay between creeping and seismogenic fault sections using large-scale laboratory experiments and high-resolution numerical models
EarthCube Data Infrastructure: Collaborative Proposal: A unified experimental-natural digital data system for analysis of rock microstructure
Collaborative Research: Laboratory and Theoretical Investigations of the Micro-Mechanical Origins of Rate and State Friction on Tectonic Faults
The Spectrum of Fault Slip Behaviors and the Mechanics of Slow Earthquakes
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