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  5. On Propagation Characteristics of Shock Waves Generated under Hypervelocity Impact

On Propagation Characteristics of Shock Waves Generated under Hypervelocity Impact

来源 :The 2nd International Conference on Structural Health Monito | 被引量 : 0次 | 上传用户：lxm1230520
【摘 要】
：
A numerical simulation model based on Smoothed-Particle Hydrodynamics(SPH)was developed,for modeling a hypervelocity impact(HVI)scenario in which an aluminum target plate,2-mm in its thickness,was pen
【作 者】
：
LIU Meng-iong SU Zhong-qing YUAN Shen-fang 
【机 构】
：
The Department of Mechanical Engineering,The Hong Kong Polytechnic University,Kowloon,Hong Kong SAR,
【出 处】
：
The 2nd International Conference on Structural Health Monito
【发表日期】
：
2014年5期
【关键词】
：
hypervelocity impact shock wave Lamb wave smoothed-particle hydrodynamics 
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　　A numerical simulation model based on Smoothed-Particle Hydrodynamics(SPH)was developed,for modeling a hypervelocity impact(HVI)scenario in which an aluminum target plate,2-mm in its thickness,was penetrated by an aluminum sphere,3-mm in its diameter,at an initial velocity of4117 rn/s.The meshless nature of the SPH algorithm has been demonstrated able to overcome the inefficiency of traditional finite element methods(FEM)in tackling large structural distortion problem to warrant the accuracy when handling HVI.
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