An investigation into the deformation and tearing of thin circular plates subjected to impulsive loads

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dc.contributor.advisorNurick, Gerald Nen_ZA
dc.contributor.authorTeeling-Smith, R Graemeen_ZA
dc.date.accessioned2015-10-30T10:45:05Z
dc.date.available2015-10-30T10:45:05Z
dc.date.issued1990en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractThis investigation, primarily experimental, examines the failure of circular plates subjected to impulsive velocities. The experiments are conducted on fully clamped circular steel plates subjected to a uniformly distributed impulse. The strain-rate-sensitive mild steel plates fail with mode I (large ductile deformation), mode II (tensile-tearing and deformation) and mode III (transverse-shear) failure modes. The impulse is measured by means of a ballistic pendulum upon which the test plates are attached. During mode II and mode III failure the complete circumferential tearing of the test plate produces a circular disc. The velocity of this disc is recorded. An energy analysis is performed on the test results and an energy balance equation is formulated. Einput = Edeformation + Etearing + Edisc. The input and disc energies are obtained from the experimental measurements and the deformation energy is predicted by using the final deformed height and a shape function together with a rigid-plastic energy analysis adopted by Duffey. Etearing refers to the energy for tensile-tearing in mode II failure or the energy for transverse-shear in mode III failure. Good correlation is found and the experiments show good repeatability. The threshold velocities for the onset of failure modes II and III are given.en_ZA
dc.identifier.apacitationTeeling-Smith, R. G. (1990). <i>An investigation into the deformation and tearing of thin circular plates subjected to impulsive loads</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/14564en_ZA
dc.identifier.chicagocitationTeeling-Smith, R Graeme. <i>"An investigation into the deformation and tearing of thin circular plates subjected to impulsive loads."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 1990. http://hdl.handle.net/11427/14564en_ZA
dc.identifier.citationTeeling-Smith, R. 1990. An investigation into the deformation and tearing of thin circular plates subjected to impulsive loads. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Teeling-Smith, R Graeme AB - This investigation, primarily experimental, examines the failure of circular plates subjected to impulsive velocities. The experiments are conducted on fully clamped circular steel plates subjected to a uniformly distributed impulse. The strain-rate-sensitive mild steel plates fail with mode I (large ductile deformation), mode II (tensile-tearing and deformation) and mode III (transverse-shear) failure modes. The impulse is measured by means of a ballistic pendulum upon which the test plates are attached. During mode II and mode III failure the complete circumferential tearing of the test plate produces a circular disc. The velocity of this disc is recorded. An energy analysis is performed on the test results and an energy balance equation is formulated. Einput = Edeformation + Etearing + Edisc. The input and disc energies are obtained from the experimental measurements and the deformation energy is predicted by using the final deformed height and a shape function together with a rigid-plastic energy analysis adopted by Duffey. Etearing refers to the energy for tensile-tearing in mode II failure or the energy for transverse-shear in mode III failure. Good correlation is found and the experiments show good repeatability. The threshold velocities for the onset of failure modes II and III are given. DA - 1990 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1990 T1 - An investigation into the deformation and tearing of thin circular plates subjected to impulsive loads TI - An investigation into the deformation and tearing of thin circular plates subjected to impulsive loads UR - http://hdl.handle.net/11427/14564 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/14564
dc.identifier.vancouvercitationTeeling-Smith RG. An investigation into the deformation and tearing of thin circular plates subjected to impulsive loads. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 1990 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/14564en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Mechanical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherPlates (Engineering)en_ZA
dc.subject.otherPlates (Engineering) - Fatigueen_ZA
dc.subject.otherDeformations (Mechanics)en_ZA
dc.subject.otherMechanical Engineeringen_ZA
dc.titleAn investigation into the deformation and tearing of thin circular plates subjected to impulsive loadsen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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