Numerical and Experimental Analysis of Elastic Three-layer Plate Under Static and Low Velocity Impact Loading
摘要
Computational and experimental approaches to determine the values of physical and mechanical properties of three-layer sandwich plates, consisting of two outer layers of fiberglass and a core of expanded polystyrene, bonded with epoxy glue, is proposed. To measure displacements and strains, an experimental stand which uses mechanical dial gauges and strain gauges, was developed. Experimental data are presented for static and low-velocity impact loading on the plate when a spherical impactor falls on it. The finite element analysis of the plate is carried out and the results are compared with experimental data.