Blast waves generated by improvised explosive devices (IEDs) cause traumatic brain injury (TBI) in soldiers and civilians. Currently, in vivo animal models are extensively used to study blast TBI, to identify mechanisms of injury, and to develop injury thresholds. This work focuses on the study of the effect of Incident Pressure (IP), skull rigidity on the measured Intracranial Pressure (ICP) and maximum principle strain measured on the skull using a validated finite element model of the rat head. Our results indicate that the ICP has a negative correlation with the skull rigidity; i.e., with increase in the skull rigidity the ICP tends to decrease. Similarly, ICP linearly increases with an increase in the IP. Finally, the strain has a negative non linear relationship with the skull rigidity.
- Bioengineering Division
Development of Finite Element Rat Head Model to Study the Effect of Incident Pressure and Skull Rigidity Under Blast-Induced Biomechanical Loading
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Sundaramurthy, A, & Chandra, N. "Development of Finite Element Rat Head Model to Study the Effect of Incident Pressure and Skull Rigidity Under Blast-Induced Biomechanical Loading." Proceedings of the ASME 2013 Summer Bioengineering Conference. Volume 1B: Extremity; Fluid Mechanics; Gait; Growth, Remodeling, and Repair; Heart Valves; Injury Biomechanics; Mechanotransduction and Sub-Cellular Biophysics; MultiScale Biotransport; Muscle, Tendon and Ligament; Musculoskeletal Devices; Multiscale Mechanics; Thermal Medicine; Ocular Biomechanics; Pediatric Hemodynamics; Pericellular Phenomena; Tissue Mechanics; Biotransport Design and Devices; Spine; Stent Device Hemodynamics; Vascular Solid Mechanics; Student Paper and Design Competitions. Sunriver, Oregon, USA. June 26–29, 2013. V01BT55A029. ASME. https://doi.org/10.1115/SBC2013-14797
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