Thin circular metal plates subjected to localised impulsive loads

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dc.contributor.advisorNurick, Gerald Nen_ZA
dc.contributor.authorRadford, Anthony Michaelen_ZA
dc.date.accessioned2016-09-06T14:46:16Z
dc.date.available2016-09-06T14:46:16Z
dc.date.issued1995en_ZA
dc.description.abstractThis thesis presents a theoretical model to predict the response of thin circular metal plates subjected to localised impulsive loads. These predictions are compared to experimental data and a finite element model. The theoretical model is described by two models where the first model predicts the plate deformation and the second model, using the deformation from the first, predict the strains in the plate. The first model or theoretical displacement model presents a stepwise velocity field approach, in which it is assumed that the explosive burns as a set of discretised rings spreading from the centre of the plate to the outer radius of the explosive. For each ring a velocity field for the plate is developed, and after including strain rate effects, a corresponding displacement is calculated. The total final displacement is determined by summing each of the individual displacements. The predictions are compared with all experimental data and a satisfactory correlation is found for both the mid-point displacements and the final plate shape. The second model or theoretical strain model uses the final displaced shape calculated using the theoretical displacement model to determine the strain in the deformed plates, with results being compared to uniaxial tensile strain and mean cap diameters obtained from experimentation. The maximum strain at failure calculated using the theoretical strain model gave good correlation to the uniaxial tensile strain and its position correlated well with the mean cap diameter.en_ZA
dc.identifier.apacitationRadford, A. M. (1995). <i>Thin circular metal plates subjected to localised impulsive loads</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/21703en_ZA
dc.identifier.chicagocitationRadford, Anthony Michael. <i>"Thin circular metal plates subjected to localised impulsive loads."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 1995. http://hdl.handle.net/11427/21703en_ZA
dc.identifier.citationRadford, A. 1995. Thin circular metal plates subjected to localised impulsive loads. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Radford, Anthony Michael AB - This thesis presents a theoretical model to predict the response of thin circular metal plates subjected to localised impulsive loads. These predictions are compared to experimental data and a finite element model. The theoretical model is described by two models where the first model predicts the plate deformation and the second model, using the deformation from the first, predict the strains in the plate. The first model or theoretical displacement model presents a stepwise velocity field approach, in which it is assumed that the explosive burns as a set of discretised rings spreading from the centre of the plate to the outer radius of the explosive. For each ring a velocity field for the plate is developed, and after including strain rate effects, a corresponding displacement is calculated. The total final displacement is determined by summing each of the individual displacements. The predictions are compared with all experimental data and a satisfactory correlation is found for both the mid-point displacements and the final plate shape. The second model or theoretical strain model uses the final displaced shape calculated using the theoretical displacement model to determine the strain in the deformed plates, with results being compared to uniaxial tensile strain and mean cap diameters obtained from experimentation. The maximum strain at failure calculated using the theoretical strain model gave good correlation to the uniaxial tensile strain and its position correlated well with the mean cap diameter. DA - 1995 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1995 T1 - Thin circular metal plates subjected to localised impulsive loads TI - Thin circular metal plates subjected to localised impulsive loads UR - http://hdl.handle.net/11427/21703 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/21703
dc.identifier.vancouvercitationRadford AM. Thin circular metal plates subjected to localised impulsive loads. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 1995 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/21703en_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.otherMechanical Engineeringen_ZA
dc.titleThin circular metal plates subjected to localised impulsive loadsen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMSc (Eng)en_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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