CAVITY SHAPE MODELING IN SHAPED CHARGE PENETRATION BY MEANS OF CONVOLUTION OF A VOLUME TRANSFER FUNCTION
Simplified models for cavity shape prediction by shaped charge penetration into a target often assume radial growth of the cavity only. In this study a cavity shape prediction model is proposed that takes into account the local spread of volume creation by a jet segment around the impact point. In effect, the cavity shape is modeled as a type of convolution of a transfer function by a function of time that describes the incoming jet. The applicability of the model is tested by extracting transfer functions from hydrocode simulations, which is then used to predict the cavity shapes of other hydro-code simulations for which the transfer function is not known. Results illustrate that cavities can be predicted moderately well using this model.
M.F. Maritz C.J. Terblanche F.J. Mostert
Department of Mathematical Sciences, Division Applied Mathematics, Stellenbosch, University, Private RHEINMETALL-DENEL MUNITION, Western Cape, PO Box 187, Somerset West, 7129, South Africa CSIR Defence Peace Safety & Security, PO Box 395, Pretoria 0001, South Africa
国际会议
25th International Symposium on Ballistics(第25届国际弹道会议)
北京
英文
1367-1374
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）