In order to ascertain the influence factor of shell and core material on the penetration aftereffect of PELE

a series of experiments of PELE impacting steel plate were made with different steel shells and inert cores projected by a 30 mm cannon.The result of the experiment indicates the following rules.Firstly

the number and the angle of the splashing fragment can be increased by enhancing impacting velocity which affects the angle more than the number.Secondly

the penetration aftereffect of PELE is better when the yielding intensity of the shell is bigger or the cutting modulus of the shell is smaller. Thirdly

the density of core is not the main influence factor but cutting modulus.And lastly

the best matching relation is D60 shell and PE core.These rules are important for the design and application of small caliber PELE.