Deformation Scaling of Circular Plates Subjected to Dynamic Loading

Abstract

Dimensional analysis is performed to develop the appropriate parameters to guide the design of a set of scaled experimental configurations. Using the scaled experimental configurations, blast loading of the structures is developed by detonation of scaled explosive charges buried in saturated sand. To assess the quality of the scaling predictions for the response of the scaled structures, high-speed stereo-vision system is employed to quantify the transient dynamic plate response over a substantial portion of the structure. Results are reported for the out-of-plane surface deformations, including acceleration and velocity fields, during the blast loading process. Data presented in the form of scaled measurement for both plates indicates that both (a) temporal variations and (b) spatial variations are in very good to excellent agreement throughout the measurement period.