Implementation of viscoelastic Hopkinson bars

Simple item page
dc.contributor.advisorCloete,en_ZA
dc.contributor.advisorTrevor,en_ZA
dc.contributor.authorCurry, Richarden_ZA
dc.date.accessioned2014-12-27T19:47:39Z
dc.date.available2014-12-27T19:47:39Z
dc.date.issued2011en_ZA
dc.descriptionIncludes bibliographical references (p. 107-112).en_ZA
dc.description.abstractThe properties of soft, viscoelastic materials at high strain rates are important in furthering our understanding of their role during blast or impact events. Testing these soft or low impedance materials using metallic bars in a split Hopkinson pressure bar setup, poor signal to noise ratios and impedance mismatching occur. One solution is to use polymeric Hopkinson bars. In this dissertation, Polycarbonate, Polymethyl Methacrylate and Nylon are considered for use as Hopkinson bars. Conventional Hopkinson bar analysis cannot be used on the polymeric bars due to the viscoelastic nature of the bar material. As stress waves propagate along the length of the bars, viscoelastic effects result in dispersion and attenuation. The main topic of this dissertation is to account for this viscoelastic material effect.en_ZA
dc.identifier.apacitationCurry, R. (2011). <i>Implementation of viscoelastic Hopkinson bars</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/10293en_ZA
dc.identifier.chicagocitationCurry, Richard. <i>"Implementation of viscoelastic Hopkinson bars."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2011. http://hdl.handle.net/11427/10293en_ZA
dc.identifier.citationCurry, R. 2011. Implementation of viscoelastic Hopkinson bars. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Curry, Richard AB - The properties of soft, viscoelastic materials at high strain rates are important in furthering our understanding of their role during blast or impact events. Testing these soft or low impedance materials using metallic bars in a split Hopkinson pressure bar setup, poor signal to noise ratios and impedance mismatching occur. One solution is to use polymeric Hopkinson bars. In this dissertation, Polycarbonate, Polymethyl Methacrylate and Nylon are considered for use as Hopkinson bars. Conventional Hopkinson bar analysis cannot be used on the polymeric bars due to the viscoelastic nature of the bar material. As stress waves propagate along the length of the bars, viscoelastic effects result in dispersion and attenuation. The main topic of this dissertation is to account for this viscoelastic material effect. DA - 2011 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2011 T1 - Implementation of viscoelastic Hopkinson bars TI - Implementation of viscoelastic Hopkinson bars UR - http://hdl.handle.net/11427/10293 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/10293
dc.identifier.vancouvercitationCurry R. Implementation of viscoelastic Hopkinson bars. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2011 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/10293en_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.titleImplementation of viscoelastic Hopkinson barsen_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
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
thesis_ebe_2011_curry_r.pdf
Size:
3.17 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Masters