Experimental and Numerical Study of Quasi-Brittle Fracture of Rocks

被引：0
|
作者：
Kostandov, Yu. A. [1 ]
Makarov, P. V. [2 ,3 ]
Eremin, M. O. [2 ,3 ]
机构：
[1] Natl Taurida Univ VI Vernadskii, Simferopol, Russia
[2] Inst Strength Phys & Mat Sci SB RAS, Tomsk 634055, Russia
[3] Natl Res Tomsk State Univ, Tomsk 634050, Russia
来源：
INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS OF MULTILEVEL SYSTEMS 2014 | 2014年 / 1623卷
基金：
俄罗斯科学基金会;
关键词：
pre-fracture time; kinetics of damage accumulation; fracture focus;
D O I：
10.1063/1.4898942
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The experimental determination of characteristic pre-fracture times and a numerical simulation of the stress-strain state evolution of gabbro specimens were carried out at a three-point bend. The pre-fracture times obtained experimentally are used to determine the parameters of a quasi-brittle model. It is shown that the bend value grows in the final stages of deformation in a blow-up regime both in the experiments and numerical simulation.
引用
收藏
页码：303 / 306
页数：4
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