爆破器材
爆破器材
폭파기재
2001年
1期
1-4
,共4页
贾光辉%王志军%张国伟%裴思行%王文龙
賈光輝%王誌軍%張國偉%裴思行%王文龍
가광휘%왕지군%장국위%배사행%왕문룡
爆炸%应力波%数值模拟
爆炸%應力波%數值模擬
폭작%응력파%수치모의
通过对爆炸过程进行分析,运用质量和动量守恒原理,导出了爆炸过程中应力波传播规律:随着介质质点距装药中心距离的增大,应力波幅值在衰减,应力波波形在变化,其传播速度也在减小。通过对球形装药爆炸后应力波传播过程的数值模拟,可以形象地说明上述传播规律。
通過對爆炸過程進行分析,運用質量和動量守恆原理,導齣瞭爆炸過程中應力波傳播規律:隨著介質質點距裝藥中心距離的增大,應力波幅值在衰減,應力波波形在變化,其傳播速度也在減小。通過對毬形裝藥爆炸後應力波傳播過程的數值模擬,可以形象地說明上述傳播規律。
통과대폭작과정진행분석,운용질량화동량수항원리,도출료폭작과정중응력파전파규률:수착개질질점거장약중심거리적증대,응력파폭치재쇠감,응력파파형재변화,기전파속도야재감소。통과대구형장약폭작후응력파전파과정적수치모의,가이형상지설명상술전파규률。
By analysis of the blasting procedure and using conservation principle of mass and moment,the rule of stress wave propagation in blasting is derived that the stress wave amplification is reduced,the wave form of stress wave is varied and the propagation velocity is reduced as the distance between the medium point and the blasting center become larger.The above rule may also be demonstrated by blasting simulation of a spherical explosive charge in an unlimited me-dium.