Numerical-experimental study of steel plates subjected to blast loading

DANIEL AMBROSINI; ABEL JACINTO

Florianópolis, Brasil

Congreso; Impact Loading of Lightweight Structures; 2005

The main objective of this paper is the comparison between testing and numerical responses of metallic plates subjected to air blast loads, in or- der to determine the accuracy of modern calculation methods and compu- tational 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-sti®ened metallic steel plates with di®erent 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 di®erent points on both plates and the pres- sure 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