Research in numerical simulation on the effect of metallic tube material parameters under two detonation waves impacted;

A numerical simulation of the metallic tube expansion inducedby inside head-on hitting two detonation waves;

The experiment of metallic tube expansion by inside head-on hitting detonation waves has been numerically simulated with LS-DYNA.

In order to simulate the acceleration pulse in impact tests, the design method of the acceleration pulse generator by the multi-segment tubes with different thicknesses based on the theory of metal tubes press expansion was researched.

Experimental studies are carried out on 24 specimens of mild steel, stainless steel and copper metallic cylindrical tubes of six specifications under axial compress of rigid cone-shaped plate with cone semi-angles 21.

Based on Maxwell equations,a theoretical derivation is presented instead of the existing formula P_m=B~2/2μ_0 for the distribution characteristics of eddy current in a circular metal plate under the transverse magnetic exitation,and the analytic expression of electromagnetic force is deduced to modify magnetic pressure formula.

Natural rubber(NR)/ solution polymerized styrene-butadiene rubber(SSBR)-round metal bonding were prepared by termal vulcanizative bonding technology,the effects of vulcanization system and reinforcing agent on adhesive property of high hardness rubber to round metal were investigated.