Effect of the variation of conical liner apex angle （锥形衬管顶角的变化的影响）.pdfVIP

Indi an Journal of Engineerin g Materi als Sc iences Vo l. 10, October 2003 , pp . 38 1-389 Effect of the variation of conical liner apex angle and explosive ignition point on shaped charge jet formation b I Gokhan Ak soy a Sadri Sen * a Department of Mechani ca l Engineerin g, Engin eerin g Faculty , In onu Univ ersity, Malatya. Turkey b Departm ent o f Mechani ca l Engineerin g, Engineerin g Faculty , Ataturk Uni versity . Erzurum , T urkey Received 6 March 2003; accept ed 10 July 2003 Shaped charge techn ology has an import ant ro le in th e milit ary a nd commercial areas, as bull ets and warh eads mad e by th e shaped charge princ ipl e are espec iall y used for penetrati on to target and demoliti on purposes. In earl y studi es, th e so luti on o f shaped charge prob lem s has bee n obt ained by using anal yti ca l meth od s. However, over th e past decade , num eri cal meth ods based on fi nite difference and finite e leme nt meth ods are used fo r simulating thi s complex process. In thi s study, th e e ffects of va ry ing parameters (coni ca l liner apex angle and expl osive igniti on place) are in vesti gated by a num eri cal modelling of th e shaped charge perfo rm ed using th e Dyna2D hydrodynamic code. The 8 1 mm prec isio n shaped charge warh ead whi ch is designed by Ball isti c Research Laboratory (BRL) is taken as a reference charge . The simul ati ons are carried out from 13° to 46 ° of th e apex angle because bo th th e j ets do not oc