The objective of the study was to determine the role of acceleration-deceleration pulses on brain strains in lateral impact. A coronal plane finite element model was developed and validated with experimental temporal motion and strain data from literature. Parametric studies were conducted by applying acceleration, deceleration, or combined acceleration-deceleration pulses with varying separating time intervals. Temporal principal strains were obtained at the corpus callosum, base of postcentral sulcus, and cerebral cortex of the parietal lobe regions. Results indicated region- and pulse-specific responses to angular accelerations and separating time intervals.
Keywords: brain; finite element method; accelerations; diffuse brain injury