Experimental and Numerical Investigation on the plain and reinforced Steel Sheets under free fall impact

Steel sheets are used in various industries such as automotive, aerospace, and … . The issue of impact and penetration in steel sheets has been the main focus of many studies. In this study, Laboratory and numerical studies of flat and reinforced steel sheets by steel reinforcement have been performed under the of impact caused by free fall of the weights. Steel sheets used are steel St12. The material and thickness of the pendentive used are similar to the sheet and have a width of 2 cm. The parameters have evaluated include the amount of impact acceleration on the sheet, the rate of permanent deformation, and the amount of energy absorption for simple and reinforcer flat sheets. The numerical modeling of Abaqus finite element software is used. The results show that the use of reinforcer causes a slight increase in the acceleration of the sheet and a significant reduction in its permanent deformation.