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dc.contributor.advisorShivakumar, N D
dc.contributor.authorTonannavar, Sanketh
dc.date.accessioned2024-03-28T11:46:01Z
dc.date.available2024-03-28T11:46:01Z
dc.date.submitted2024
dc.identifier.urihttps://etd.iisc.ac.in/handle/2005/6459
dc.description.abstractLow–speed impact (LSI) of brittle structural panels by rigid bodies causes significant damage, evident in familiar scenarios like the breaking of monolithic and laminated glass panes due to stone pelting, punching a hole on wooden board with nail-hammer impact, and so on. The stress waves and the vibrations radiated from the point of impact cause fracture and fragmentation of the target bodies in addition to local and global deformations. LSI damage and fragmentation, however no less catastrophic, remain the underexplored research areas, thus posing difficulty in modeling. As most studies focus on the fragmentation of hard or stiff targets under high strain rates, such as ballistics and explosions, investigations on dynamic behavior and LSI fragmentation of rather compliant targets of natural origin such as ‘wood’ are limited. Hence, this work presents a comprehensive investigation of the LSI response of wood through experimental, theoretical, and numerical investigations. This work, overall, encompasses the following contributing works: At first, the nondestructive evaluation (NDE) of an Indian wood forms a preliminary exploration of the nature of stress wave propagation and characterization of natural defects to determine the wood quality. Secondly, experimental and theoretical analyses of LSI mechanics and fragmentation of wooden panels are carried out to understand the behavior of these stress waves under impact loading. Finally, numerical and mathematical modeling of LSI fragmentation of glass and wooden plates, respectively, to capture the precursors of catastrophic fragmentation.en_US
dc.language.isoen_USen_US
dc.relation.ispartofseries;ET00468
dc.rightsI grant Indian Institute of Science the right to archive and to make available my thesis or dissertation in whole or in part in all forms of media, now hereafter known. I retain all proprietary rights, such as patent rights. I also retain the right to use in future works (such as articles or books) all or part of this thesis or dissertationen_US
dc.subjectImpact Mechanicsen_US
dc.subjectNonlinear Dynamicsen_US
dc.subjectWave Propagationen_US
dc.subjectFracture and Fragmentationen_US
dc.subjectstress wavesen_US
dc.subjectbrittle structural panelsen_US
dc.subjectLow–speed impacten_US
dc.subjectWooden_US
dc.subject.classificationResearch Subject Categories::INTERDISCIPLINARY RESEARCH AREASen_US
dc.subject.classificationResearch Subject Categoriesen_US
dc.titleLow–Speed Impact Mechanics and Fragmentation of Wooden Panels: Characterization of Indian Woodsen_US
dc.typeThesisen_US
dc.degree.namePhDen_US
dc.degree.levelDoctoralen_US
dc.degree.grantorIndian Institute of Scienceen_US
dc.degree.disciplineEngineeringen_US


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