{'fraction_non_alphanumeric': 0.021757322175732216, 'fraction_numerical': 0.0, 'mean_word_length': 4.8341463414634145, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
A finite element model of the rat brain for injury investigation

Traumatic brain injuries (TBI) constitute a significant portion of all injuries occurring as a result of automotive, sports and domestic accidents. To determine the physiological and mechanical factors inducing TBI, experiments on animals have been used over the past few years. It has been inferred that angular accelerations are a main cause for such injuries as diffuse axonal injuries. However, studies concerning the accurate biomechanics of the mild TBI are still scarce. In order to improve knowledge on TBI, a finite element model (FEM) of the rat’s brain was developed in this study. The short-term aim of this model is to numerically reconstruct mechanical impacts which were generated by real experiments on rat’s heads. As a consequence, the influence of the material parameters of the FEM is a crucial point; thus, parametric studies were led on them. The long-term goal of the FEM of the rat’s head is to determine TBI mechanisms and tissue tolerance limits. This will be achieved by comparing injuries observed in experimental cases on the one hand, and mechanical results extracted from the FEM on the other hand.