Development and Application of Model for Adobe to Penetration in Adobe Targets

Abstract

Adobe materials are becoming more prevalent on the battlefield and so it is necessary to be able to assess their ballistic performance to a range of threats. The aim of the work described in this paper was to develop a material model that is capable of predicting the ballistic response of the adobe material within the spread of experimental data. The model is generated by a combination of theoretical and semi-empirical techniques and triaxial testing is used to determine the constitutive response. The simulations demonstrated the sensitivity of the adobe’s shear and compressive meridian to the prediction of penetration depth and demonstrated that the compressive meridian was the dominant process. The simulations have also been compared with shaped charge penetration experiments with good agreement for the borehole shape and perforation time. The paper discusses the aspects of the model that require further development to predict the cratering response.