Large deformation of rigid-viscoplastic cantilevers subjected to impulsive loading

 

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dc.contributor.advisor Martin, J B en_ZA
dc.contributor.author Trossbach, Rolf en_ZA
dc.date.accessioned 2016-10-16T09:45:45Z
dc.date.available 2016-10-16T09:45:45Z
dc.date.issued 1984 en_ZA
dc.identifier.citation Trossbach, R. 1984. Large deformation of rigid-viscoplastic cantilevers subjected to impulsive loading. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/22145
dc.description Bibliography: pages 64-66. en_ZA
dc.description.abstract 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. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Civil Engineering en_ZA
dc.title Large deformation of rigid-viscoplastic cantilevers subjected to impulsive loading en_ZA
dc.type Thesis / Dissertation en_ZA
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Engineering & the Built Environment en_ZA
dc.publisher.department Department of Civil Engineering en_ZA
dc.type.qualificationlevel Masters en_ZA
dc.type.qualificationname MSc (Eng) en_ZA
uct.type.filetype Text
uct.type.filetype Image


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