Finite Element Modeling of the Crash-Tests for Energy Absorbing Lighting Columns
Alexey Borovkov, Oleg Klyavin, Alexander Michailov
Finite Element system LS-DYNA is used in this project to perform contact-impact non-linear dynamic analysis of the lighting column crash-test with vehicle. FE spatial discretization is achieved by the use of shell and solid ele-ments. Developed 3D CAD and FEM models of different types of columns that allowed simula-tion of the following nonlinearities: impact at different vehicle speed, plasticity in column and vehicle parts, contact interaction between simu-lated objects, progressive damage in column laminates. The resultant simulated deceleration curves allowed calculation of head injury crite-ria (HIC) and safety estimation for all columns crash tests.