The shaped charge tandem warhead is an effective weapon against the ERA (explosive reactive armor). Whether the pre-warhead can reliably initiate the ERA directly determines the entire performance of the tandem warhead. The existing shaped charge pre-warhead mostly adopts a metal shaped jet, which effectively initiates the ERA, but interferes the main shaped jet. This article, on the other hand...

Introduction: We have used the Ansys Inc. AUTODYN ® software [1] to hydrodynamically model small particle impacts into aluminium (Al) foil, under the conditions of the Stardust encounter with comet 81P/Wild 2 [2] (i.e., normal incidence, 6 km s -1 ). We compare results of impact models, based on carefully defined particle structures, with three-dimensional (3D) crater shapes reported from Stard...

Recent post explosive control avalanches and the lack of analytical methods for evaluating explosive control have motivated this study to better quantify the effects explosives on snow. Currently, there are insufficient tools for predicting the effects that explosives will have on snow avalanche release. While there is significant practitioner experience, that experience has (on occasion) not a...

The evaluation of ammunition damage power and guidance for design heavily relies on the shock wave pressure wavefront temperature produced by an explosion. However, test results are often inaccurate unreliable. Therefore, this study utilized Autodyn explicit dynamics simulation software to conduct finite element numerical simulations explosion pressure, propagation, distribution trinitrotoluene...

This paper presents insights into the influence of ball size on flight characteristics and damage a bearing embedded in rear detonated cylindrical charge. It includes results from post-test analysis bearings previously reported experiments. Computational simulations using Ansys Autodyn were used to provide extra information about velocity variation during sustained by blast event. The (diameter...