Modeling Electric Vehicle’s Battery Module using Computational Homogenization Approach

Numerical simulations of heterogeneous structures like battery modules electric vehicles are challenging due to the various length scales involved in it. Even with latest computing technology, it is impossible simulate crash scene full vehicle resolving all scales. Such hurdles have prevented manufacturers understand mechanical response packs scenarios. In this work, problem multiple was solved using RVE technique based on homogenization theory. An appropriate representative volume element identified, and a 3D FE model developed. Classical first-order boundary conditions were used research work. The subjected several macroscopic deformations, its obtained. homogenized material properties computed from obtained responses, available LS-Dyna’s library selected calibrated describe nonlinear multiaxial behavior module at macroscale. For validation, USABC Crush Drop Tests simulated for detailed modules. main output robust computationally efficient tool enabling satisfactory integration pack simulations, eliminating need micro details macro This approach significantly reduced computational cost. example, Test simulation, simulation time 40 hours (detailed model) about 3 minutes, while maintaining high precision ( R 2 = 0.9871 ) predicting load-displacement response. system level modeling will enable stakeholders perform optimization safety evaluation full-scale crashworthiness vehicles.