Evaluation of Tools & Techniques Used For Frontal Crash Analysis

Frontal and side crashes causes the severe injury to the occupants and damage to the components. The objective of this study is to evaluate various tools and techniques used for analysis of dynamic response of vehicle occupants and automobile components during frontal and side impact. Crash simulation is a virtual recreation of a destructive crash test of a vehicle and its components using a computer aided analysis software in order to examine the level of safety of the vehicle and its occupants. CAD software are generally used for modeling of the vehicle components, this CAD data is transferred to an FEM software for pre-processing, solving and post-processing followed by interpretation of results related to energies, acceleration and displacements with different loads & boundary conditions possible in various accidental situations. Simulation software like LSDYNA, Pamcrash, Abaqus-Explicit and others are used to perform crash simulations. Multibody analyses have been applied extensively in biodynamic modeling and in investigations of the dynamic behavior of bio systems. In this study multibody dynamics method is used to explore frontal collision phenomena. Specifically, it study examines the dynamic response of the human body in a crash event and assesses the injuries sustained to the occupant’s head and chest. The multibody dynamics results are found to be in good agreement with the numerical results found using crash simulation tools.