A Computational Model of the Eye for Primary and Secondary Blast Injury PRINCIPAL INVESTIGATOR:
نویسندگان
چکیده
Ocular injuries from blast have increased in recent wars, but the injury mechanism associated with the primary blast wave is unknown. We employ a three-dimensional fluid-structure interaction computational model to understand the stresses and deformations incurred by the globe due to blast overpressure. Our numerical results demonstrate that the blast wave reflections off the facial features around the eye increase the pressure loading on and around the eye. The blast wave produces asymmetric loading on the eye, which causes globe distortion. The deformation response of the globe under blast loading was evaluated and regions of high stresses and strains inside the globe were identified. Our numerical results show that the blast loading results in globe distortion and large von Mises stresses in the sclera, which may increase the risk for muscle tearing and rupture.
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