ANALYSIS AND OPTIMIZATION OF CRASH BOX

During a minor collision between two vehicles or a vehicle and an obstacle, the internal structure of the vehicle is irreparably damaged. To reduce pollution, new cars are fitted with so-called crash boxes located in the front and rear of the vehicle. The aim of our study was to evaluate the impact of a crash box structure to minimize limb deformities, as if damaged, this part, or repaired, would not ensure good safety in the event of a major collision. The crash box is a separate part of the car installed between the car frame and the front bumper. During an accident, it disables axially and absorbs energy by accident. The structure of the crash box provides comfort to the passenger during impact. It serves as a protection for expensive parts behind the bumper like engine cover and cooling system. Various parameters such as width, thickness, critical filling affecting the performance of the crash box are investigated using a test design. a detailed analysis of the flexible crash box on the ANSYS performance bench. Test tests are performed on a UTM machine. A comparative analysis will then be made between the results of the test and the analysis and then the result and conclusion will be taken.