This thesis presents a closed form model for the analysis of the symmetric planar W type shaped charges (WSC) with asymmetric V sections. In the symmetric planar WSC, for two V sections, two primary cores and two primary jets, are produced. If these two V sections have proper asymmetry, these primary cores will force two primary jets into a secondary core which will be produced onto the axis of the whole symmetry of WSC. For the analysis of such planar WSC, a complete generalized model for the asymmetric planar V shaped charges (VSC) with any desired order of asymmetry is mandatory. Some factors such as liner and confinement asymmetries, detonation wave front asymmetries, and other factors can effect these phenomena. In such cases, the velocities of the elements lying on the two arms of the liner in the asymmetric planar VSC may not be symmetric. Thus, elements colliding at the core will have different distances from the nominal axis of VSC symmetry, and of course will not meet on this axis. In this thesis, by means of a model that explains the collapse and jet formation process in the VSC for any desired order of geometrical asymmetries, secondary jet formation phenomenon in the symmetric WSC will be described. In other words by presenting a closed form analysis of the WSC, the secondary jet specifications can be easily evaluated and thus can be compared with respect to the jet quantities in symmetric or asymmetric VSC. Finally, for the primary and secondary jets, the coherency conditions and their critical parameters are investigated and as a case study in a typical WSC these critical parameters are evaluated. In the presence of proper asymmetry in such WSC’s, a jet with a greater rate of inlet mass and energy tha conventional VSC’s can be produced. Keywords: Secondary Jet formation theory, W type shaped charge, Collapse phenomenon, Asymmetric shaped charge.
