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dc.contributor.supervisor Luo, Yunhua (Mechanical and Manufacturing Engineering) en_US
dc.contributor.author Liang, Zhaoyang
dc.date.accessioned 2012-03-22T13:46:10Z
dc.date.available 2012-03-22T13:46:10Z
dc.date.issued 2012-03-22
dc.identifier.uri http://hdl.handle.net/1993/5202
dc.description.abstract Biofidelity of finite element head model (FEHM) includes geometric and material aspects. A FEHM with inhomogeneous material properties was proposed to improve material biofidelity. The proposed FEHM was validated against experimental data and good agreements were observed. The capability of the proposed model in simulating large tissue deformation was also demonstrated. Influences of inhomogeneous material properties on the mechanical responses of head were investigated by comparing with homogeneous material model. The inhomogeneous material properties induce large peak strains in head constituents, which are probably the cause of various brain injuries. Helmets are effective in preventing head injuries. Parametric studies were conducted to investigate how changes in helmet shell stiffness, foam density and pad thickness influence the performance of a helmet in protecting the brain. Results showed that strain energy absorbed by foam component, contact stress on the interfaces and intracranial responses are significantly affected by foam density and pad thickness. en_US
dc.rights info:eu-repo/semantics/openAccess
dc.subject Head injury en_US
dc.subject Finite element analysis en_US
dc.subject Hounsfield Unit en_US
dc.subject CT images en_US
dc.subject inhomogeneous material en_US
dc.title Image - based Finite Element Analysis of Head Injuries and Helmet Design en_US
dc.type info:eu-repo/semantics/masterThesis
dc.degree.discipline Mechanical and Manufacturing Engineering en_US
dc.contributor.examiningcommittee Wang, Quan (Mechanical and Manufacturing Engineering) Zhang, Qiang (Biosystems Engineering) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note May 2012 en_US


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