Large deformation of rigid-viscoplastic cantilevers subjected to impulsive loading

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dc.contributor.advisorMartin, J Ben_ZA
dc.contributor.authorTrossbach, Rolfen_ZA
dc.date.accessioned2016-10-16T09:45:45Z
dc.date.available2016-10-16T09:45:45Z
dc.date.issued1984en_ZA
dc.descriptionBibliography: pages 64-66.en_ZA
dc.description.abstractThe problem of a ductile metal cantilever structure (not necessarily initially straight) subjected to dynamic loads leading to deformations of the order of the dimensions of the structure is considered. The material is treated as rigid-viscoplastic; in this idealisation elastic effects are ignored, and the dependence of the yield stress on the rate of strain is taken into account. The problem is first analysed as one of impulsive loading, using the concepts of the mode approximation technique. A new algorithm for the determination of mode shapes is presented for small displacement assumptions and then extended to incorporate geometric effects. An algorithm is given for the time integration of the motion in which the geometry of the st ructure is updated. Applications of the method are described for impulsive loading, and extended to a type of pipe-whip problem where the loading is a combination of an impulse and a pulse which acts in the direction of the tangent at the tip of the cantilever structure at each instant. Illustrative examples are presented which show that the algorithms can be used to give very good predictions of the displaced shape of the structures under consideration.en_ZA
dc.identifier.apacitationTrossbach, R. (1984). <i>Large deformation of rigid-viscoplastic cantilevers subjected to impulsive loading</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering. Retrieved from http://hdl.handle.net/11427/22145en_ZA
dc.identifier.chicagocitationTrossbach, Rolf. <i>"Large deformation of rigid-viscoplastic cantilevers subjected to impulsive loading."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 1984. http://hdl.handle.net/11427/22145en_ZA
dc.identifier.citationTrossbach, R. 1984. Large deformation of rigid-viscoplastic cantilevers subjected to impulsive loading. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Trossbach, Rolf AB - The problem of a ductile metal cantilever structure (not necessarily initially straight) subjected to dynamic loads leading to deformations of the order of the dimensions of the structure is considered. The material is treated as rigid-viscoplastic; in this idealisation elastic effects are ignored, and the dependence of the yield stress on the rate of strain is taken into account. The problem is first analysed as one of impulsive loading, using the concepts of the mode approximation technique. A new algorithm for the determination of mode shapes is presented for small displacement assumptions and then extended to incorporate geometric effects. An algorithm is given for the time integration of the motion in which the geometry of the st ructure is updated. Applications of the method are described for impulsive loading, and extended to a type of pipe-whip problem where the loading is a combination of an impulse and a pulse which acts in the direction of the tangent at the tip of the cantilever structure at each instant. Illustrative examples are presented which show that the algorithms can be used to give very good predictions of the displaced shape of the structures under consideration. DA - 1984 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1984 T1 - Large deformation of rigid-viscoplastic cantilevers subjected to impulsive loading TI - Large deformation of rigid-viscoplastic cantilevers subjected to impulsive loading UR - http://hdl.handle.net/11427/22145 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/22145
dc.identifier.vancouvercitationTrossbach R. Large deformation of rigid-viscoplastic cantilevers subjected to impulsive loading. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 1984 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/22145en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Civil Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherCivil Engineeringen_ZA
dc.titleLarge deformation of rigid-viscoplastic cantilevers subjected to impulsive loadingen_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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