Numerical Simulation of Dynamic Response of a Composite Battery Housing for Transport Applications

This study focuses on simulating the dynamic response of a novel battery housing constructed from an innovative thermoplastic composite material using the FE method,
implemented in the LS-Dyna software. The composite comprises a thermoplastic matrix (ELIUM MC and Martinal ATH) reinforced by glass fibers. The initial mechanical properties of the composite are characterized through standardized mechanical tests. The housing undergoes analysis under various loading scenarios, including sine-sweep and random vibration, mechanical shock and impact loads. Throughout these analyses, the housing’s structural integrity is thoroughly assessed for potential failures. The numerical results demonstrate that the housing remains resilient against vibration and mechanical shock. Additionally, while low-energy impact induces some damage, it does not impede the battery pack’s normal operation. However, high-energy impact causes substantial damage that compromises the integrity of the battery. Importantly, the FE model of the battery housing serves as a basis for the creation of a digital twin of the battery, offering opportunities for further design and optimization strategies.