高压物理学报2012，Vol.26Issue(2)：205-210,6.
复合型切缝药包成缝机理及数值模拟实验
Slitting Mechanism and Numerical Simulation Experiments of Complex Ligamented Charge Holders
摘要
Abstract
According to the theries of explosion mechanics and rock fracture dynamics mechanics,we found that the slits location shear stress of the complex ligamented charge holders is about 1.59 times of that of the conventional ligamented charge holders.The finite element software ANSYS10.0/LS-DYNA was employed to numerically compare the blasting effects of three kinds of seam cartridge,and it was found that the blasting effect of the complex ligamented charge holders is the best.Through comparing the effective plastic strain in the slits direction and vertical slits direction of the complex ligamented charge holders,we obtained that the effective plastic strain is the slits direction is 2.93 times of that in the vertical slits direction.After companing the pressure of surrounding rock in the far zone,we observed that the blasting pressure in the far zone of the complex ligamented charge holders is the lowest,which may lead to the minimum degree of injury to the surrounding rock and full use of the energy.关键词
复合型切缝药包/成缝机理/ANSYS10.0/LS-DYNA/数值模拟/定向爆破Key words
complex ligamented charge holders/slitting mechanism/ANSYS10.0/LS-DYNA/numerical simulation/directional blasting分类
数理科学引用本文复制引用
谢华刚,阮怀宁,吴玲丽..复合型切缝药包成缝机理及数值模拟实验[J].高压物理学报,2012,26(2):205-210,6.基金项目
国家重点工程项目 （）
铜陵学院自然科学基金 （）
