A computational model of blast loading on the human eye
DSpace at IIT Bombay
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Title |
A computational model of blast loading on the human eye
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Creator |
BHARDWAJ, R
ZIEGLER, K SEO, JH RAMESH, KT NGUYEN, TD |
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Subject |
Blast injury
Fluid-structure interaction Ocular biomechanics Immersed boundary method Sclera FINITE-ELEMENT-ANALYSIS INJURIES DEFORMATION ORIENTATION SIMULATION SCHEMES TRAUMA IRAQI WAR |
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Description |
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 deviatoric stresses in the sclera. These large deviatoric stresses may be indicator for the risk of interfacial failure between the tissues of the sclera and the orbit.
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Publisher |
SPRINGER HEIDELBERG
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Date |
2014-12-28T14:45:52Z
2014-12-28T14:45:52Z 2014 |
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Type |
Article
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Identifier |
BIOMECHANICS AND MODELING IN MECHANOBIOLOGY, 13(1)123-140
1617-7959 1617-7940 http://dx.doi.org/10.1007/s10237-013-0490-3 http://dspace.library.iitb.ac.in/jspui/handle/100/16788 |
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Language |
English
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