On the Numerical Analysis of Fan-Shaped Waves

被引：1

作者：

Tarasov, Boris G. ^{[1
]}

Sadovskii, Vladimir M. ^{[2
]}

Sadovskaya, Oxana V. ^{[2
]}

机构：

[1] Univ Western Australia, Ctr Offshore Fdn Syst, Stirling Highway 35, Perth, WA 6009, Australia

[2] Inst Computat Modeling SB RAS, Akademgorodok 50-44, Krasnoyarsk 660036, Russia

来源：

NUMERICAL ANALYSIS AND ITS APPLICATIONS (NAA 2016) | 2017年 / 10187卷

基金：

俄罗斯基础研究基金会;

关键词：

Shear rupture; Fan-shaped wave; Discrete model; Lagrange equations; Computational algorithm; SHEAR RUPTURE MECHANISM; HARD ROCKS;

D O I：

10.1007/978-3-319-57099-0_75

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

The fan-shaped mechanism of rotational motion transmission in a system of elastically bonded slabs on flat surface is studied. This mechanism governs the propagation of shear ruptures in super brittle rocks at stress conditions of seismogenic depths. The current paper analyzes a built laboratory physical model, which demonstrates the process of fan waves propagation. Equations of the dynamics of the fan-structure as a mechanical system with a finite number of degrees of freedom are obtained. Computational algorithm, taking into account contact interaction of slabs, is worked out. The computations, showing the incomplete disclosure of fans with different opening angles due to fast or slow change in the velocity of rotation of the first slab, are performed. Comparison of the results of computations of length and velocity of a fan by means of a discrete model with laboratory measurements and observations shows good correspondence between the results.

引用

页码：657 / 664

页数：8