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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
 
Creator BHARDWAJ, R
ZIEGLER, K
SEO, JH
RAMESH, KT
NGUYEN, TD
 
Subject Blast injury
Fluid-structure interaction
Ocular biomechanics
Immersed boundary method
Sclera
FINITE-ELEMENT-ANALYSIS
INJURIES
DEFORMATION
ORIENTATION
SIMULATION
SCHEMES
TRAUMA
IRAQI
WAR
 
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.
 
Publisher SPRINGER HEIDELBERG
 
Date 2014-12-28T14:45:52Z
2014-12-28T14:45:52Z
2014
 
Type Article
 
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
 
Language English