Numerical-experimental study of steel plates subjected to blast loading

摘要

The main objective of this paper is the comparison between testing and numerical responses of metallic plates subjected to air blast loads, in order to determine the accuracy of modern calculation methods and computational codes. The secondary objective is to provide data that could be used for checking the accuracy of a variety of calculation methods. A set of four tests at full scale is presented on two non-stiffened metallic steel plates with different boundary conditions (one set up as a cantilever and another clamped along the four edges), subjected to the action of pressure waves originating from the detonation of high explosive charges. The time history of the acceleration at different points on both plates and the pressure waves at selected points, are recorded. In addition, a linear dynamic analysis of the plate models was carried out (using the codes ABAQUS and COSMOS). Suggestions about computational modeling of structures under impulsive loads are discussed arising from the comparison of numerical and experimental results.