By Mariusz Ziejewski, PhD, Inz, Ghodrat Karami, PhD, and Iskander Akhatov, PhD

This paper will introduce the importance of the biomechanics analysis of brain injury under blast loading. It will demonstrate the implementation procedures of a mechanized, and a multiscale model for head, brain tissues and brain cells in an effort to address the level of brain injury under blast loading. In such a modeling scheme, the objective will be to conduct the analysis and characterization procedures in a multi-step process so that the brain injury can be detected at different levels and under different blasts with various severities. The Finite Elements computational algorithms will be used for the analysis needed throughout. Also, cavitation, a microscale phenomenon, which happens as a result of the movements of the elements of brain under impact loading, will be dealt with using the small-scaled fluid dynamics phenomena.