Research of ANSYS Autodyn capabilities in evaluating the landmine blast resistance of specialized armored vehicles

The object of research is the processes pulse explosive loading in an explicit formulation for simulation complex nonlinear dynamics solids, gases, and their interactions. One most problematic areas modern studies dynamic loads materials using a numerical analysis that such usually do not take into account characteristic transition stationary deformation zone loaded material to unsteady one front pressure shockwave velocity variation by time. work aimed at developing mathematical model pulsed load shockwave, apparatus calculating parameters creating analytical dependences interaction with surface. A study software based on method solving equations continuum mechanics proposed. In this work, stress-state equation point under conditions was further developed, methods determining principal stresses invariant stress tensor, taking nature load, were established. character behavior formed as result detonation has been Analytical surface are compiled. developed its change time moment when it reaches Mathematical have proposed, which, contrast existing ones, make possible determine current values strains passing through points actual curve, well intensity metals. On basis theoretical experimental body action loading, mechanisms destruction KrAZ «Shrek» «Fiona» (Ukraine) specialized armored vehicles clarified establish compliance declared landmine resistance STANAG 4569 standardization agreement.