Enhancement of FEM representation of Piezo-electric sensors with comobining RBE2 and Solide propreties

Science and Engineering, Faculty of Science and Technology, Sidi MohamedBen AbdeLlah University FEZ,Morocco mohammed.berradagouzi@usmba.ac.ma ahmed.elkhalfi@usmba.ac.ma

Abstract

In automotive industry, numerical crash analysis is a mandatory test before going to tooling kick off phase, this test makes engineers able to predict the vehicle behavior face to side, frontal, and rear impacts. Where EURONCAP protocols have become international standards for vehicle safety ranking. The coherence between physical test and FEM test has become the main challenge for making simulations more realistic, with ensuring optimization of automotive modeling and the best representation of physical sensors. This communication proposes an enhancement of FEM modeling of piezo-electric sensors (Accels) for acceleration measurement in object to get the deceleration data under impact using RBE2 and solid FEM properties in object the avoid deviations causing data errors. Moreover, a verification test has been able to validate the proposed approach where the curve of acceleration is the same for solid representation of accelerometer and aligned mesh with X, where with using deviation of the edge the result changed.