Stress Response of Bovine Artery and Rat Brain Tissue due to Combined Translational Shear and Fixed Unconfined Compression Deformation

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dc.contributor.advisorHaslach, Henry W.en_US
dc.contributor.authorLeahy, Laurenen_US
dc.contributor.departmentMechanical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2016-02-09T06:34:39Z
dc.date.available2016-02-09T06:34:39Z
dc.date.issued2015en_US
dc.description.abstractDuring trauma resulting from impacts and blast waves, sinusoidal waves permeate the brain and cranial arterial tissue, both non-homogeneous biological tissues with high fluid contents. The experimental shear stress response to sinusoidal translational shear deformation at 1 Hz and 25% strain amplitude and either 0% or 33% compression is compared for rat brain tissue and bovine aortic tissue. Both tissues exhibit Mullins effect in shear. Harmonic wavelet decomposition, a novel application to the mechanical response of these tissues, shows significant 1 Hz and 3 Hz components. The 3 Hz component magnitude in brain tissue, which is much larger than in aortic tissue, may correlate to interstitial fluid induced drag forces that decrease on subsequent cycles perhaps because of damage resulting in easier fluid movement. The fluid may cause the quasiperiodic, viscoelastic behavior of brain tissue. The mechanical response differences under impact may cause shear damage between arterial and brain connections.en_US
dc.identifierhttps://doi.org/10.13016/M25B0N
dc.identifier.urihttp://hdl.handle.net/1903/17368
dc.language.isoenen_US
dc.subject.pqcontrolledMechanical engineeringen_US
dc.subject.pqcontrolledMechanicsen_US
dc.subject.pqcontrolledMaterials Scienceen_US
dc.subject.pquncontrolledaortaen_US
dc.subject.pquncontrolledbrainen_US
dc.subject.pquncontrolledFrequency analysisen_US
dc.subject.pquncontrolledMullins effecten_US
dc.subject.pquncontrolledSinusoidalen_US
dc.subject.pquncontrolledtranslational shear deformationen_US
dc.titleStress Response of Bovine Artery and Rat Brain Tissue due to Combined Translational Shear and Fixed Unconfined Compression Deformationen_US
dc.typeThesisen_US

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