Light combat vehicles are playing an important support role for both troops and other heavily armored combat vehicles. As such, they have a much greater risk than in previous roles of being subjected to transient loads such as impact and overpressure loads. Propagation of ballistic shock from an impacted region to the critical locations and attachment points for secondary systems can cause damage and misalignment to sensitive equipments contributing to malfunction and reduction of vehicle performance. Accuracy of determination of dynamic response of these vehicles is directly dependent on the degree of refinement of the generated model and how well the model incorporates the essential features of the vehicle and correlates to its important characteristics without being over-burdened by non-essential details. Additionally, response of nonlinear components of the vehicle in high frequency regime may influence the overall global response of the vehicle. As a result, hatch openings and access door cutouts with unsymmetric locations may have to be incorporated in the finite element model to allow fair comparison with first order experiments involving a stripped vehicle hull. The current study is an attempt to assess the influence of multiple rectangular cutouts on the overall transient response of a vehicle hull subjected to a side-on impact load.

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