典型文献
Shock-induced fracture of dolomite rock in small-scale blast tests
文献摘要：
This paper attempts to study dolomite failure using small-scale blast tests.The experimental setup consisted of a cylindrical specimen with a central borehole fitted with a detonation cord inside a copper pipe.The specimen was confined using lead material.During the test,acceleration histories were recorded using sensors placed on the lead confinement.The results showed that heterogeneity and initial cracks significantly influenced the observed failure and cracking patterns.The tests were numerically represented using the previously validated Johnson-Holmquist Ⅱ(JH-2)constitutive model.The prop-erties of the detonation cord were first determined and verified in a special test with a lead specimen to compare the deformation in the test with that of numerical simulation.Then,the small-scale blast test was simulated,and the failure of the dolomite was compared with the test observations.Comparisons of acceleration histories,scabbing failure,and number of radial cracks and crack density confirmed the overall repeatability of the actual testing data.It is likely that the proposed model can be further used for numerical studies of blasting of dolomite rock.
文献关键词：
中图分类号：
作者姓名：
Pawe? Baranowski;Micha? Kucewicz;Mateusz Pytlik;Jerzy Ma?achowski
作者机构：
Military University of Technology,Faculty of Mechanical Engineering,Institute of Mechanics&Computational Engineering,2 Gen.S.Kaliskiego Street,00-908,Warsaw,Poland;Central Mining Institute,Conformity Assessment Body,40-166,Katowice,Poland
文献出处：
引用格式：
[1]Pawe? Baranowski;Micha? Kucewicz;Mateusz Pytlik;Jerzy Ma?achowski-.Shock-induced fracture of dolomite rock in small-scale blast tests)[J].岩石力学与岩土工程学报（英文版）,2022(06):1823-1835
A类：
scabbing
B类：
Shock,induced,fracture,dolomite,rock,small,scale,tests,This,paper,attempts,study,failure,using,experimental,setup,consisted,cylindrical,specimen,central,borehole,fitted,detonation,inside,copper,pipe,was,confined,lead,material,During,acceleration,histories,were,recorded,sensors,placed,confinement,results,showed,that,heterogeneity,initial,cracks,significantly,influenced,observed,cracking,patterns,numerically,represented,previously,validated,Johnson,Holmquist,JH,constitutive,model,erties,first,determined,verified,special,deformation,simulation,Then,simulated,compared,observations,Comparisons,number,radial,density,confirmed,overall,repeatability,actual,testing,data,It,likely,proposed,further,used,studies,blasting
AB值：
0.55511
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
