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dc.contributor.advisorBudyn, Elisaen_US
dc.contributor.authorBilagi, Akshay Kalmeshen_US
dc.date.accessioned2013-10-24T20:44:38Z
dc.date.available2013-10-24T20:44:38Z
dc.date.created2013-08en_US
dc.date.issued2013-10-24
dc.date.submitted2013-08en_US
dc.identifier.urihttp://hdl.handle.net/10027/10176
dc.description.abstractThis study is intended to facilitate the damage detection and microcrack propagation analysis to predict the quality and healthy mechanical behavior of metal elements and biomaterials. The study focuses on the dual experimental and numerical methods applied to extract morphological information and to analyse the damage and cracks in the materials. First, a complete numerical model of a ball bearing is built to obtain the fault frequencies characteristic of a spall crack in the outer bearing and to analyse the effect of the spall crack increasing length on the first three harmonic frequencies of the numerised experimental testing system. Second, an efficient visualisation technique is also developed for observing the cartilagenous and bony vertebral endplate morphology and for detecting different microdamages present in this human tissue. Additionally, the spacial distribution of the chondrocyte cells is analysed by Fast Fourier Transform image processing and its influence on the disc degeneration and nutrient supply. Finally, an idealised Monte Carlo model based on non-interpenetrable elliptical cylinders is applied to generate synthetic cortical bone microstructures and compared with explicit in silico in situ models of human Haversian cortical bone tissues from elderly women. This study estimate the mechanical reliability of idealised structures at the tissue scale and their limitations at the osteonal level. All the presented studies relies on dual concomitant experimental and numerical methods.en_US
dc.language.isoenen_US
dc.rightsen_US
dc.rightsCopyright 2013 Akshay Kalmesh Bilagien_US
dc.subjectBall bearingen_US
dc.subjectSpall cracken_US
dc.subjectFinite Element Modelen_US
dc.subjectDiscrete Fourier Transformen_US
dc.subjectEnvelope Analysisen_US
dc.subjectAnti-aliasingen_US
dc.subjectIntervertebral Discen_US
dc.subjectReflection Light Microscopyen_US
dc.subjectTransmission Light Microscopyen_US
dc.subjectMicro-damageen_US
dc.subjectAgingen_US
dc.subjectHaversian cortical bone, Monte-Carlo, Homogenization.en_US
dc.titleDamage and Microcrack Detection in Metals and Biomaterials using Numerical and Experimental Methodsen_US
thesis.degree.departmentMechanical and Industrial Engineeringen_US
thesis.degree.disciplineMechanical Engineeringen_US
thesis.degree.grantorUniversity of Illinois at Chicagoen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMS, Master of Scienceen_US
dc.type.genrethesisen_US
dc.type.materialtexten_US


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