A method for in situ SEM fracture studies of brittle materials using the double torsion technique : application to nuclear graphite

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dc.contributor.authorRosie, Kathryn Aen_ZA
dc.date.accessioned2015-01-03T05:33:29Z
dc.date.available2015-01-03T05:33:29Z
dc.date.issued2011en_ZA
dc.description.abstractThis work concerned the design and development of a miniature double torsion (DT) testing rig, for use inside the chamber of a scanning electron microscope, to perform in situ loading studies of brittle materials using the DT fracture mechanics specimen. The in situ performance of the system inside the SEM was highly satisfactory, while still providing free rotation of the attached stepper motor. Crack growth rates of down to 19nm/s were directly observed in PMMA specimens. It was concluded that the technique displayed merit in its ability to contribute to the knowledge base of slow cracking and damage development in brittle materials, with the advantage being that the gearing ratios of the current device resulted in slower specimen loading rates, which were more controlled, than reported previously.en_ZA
dc.identifier.apacitationRosie, K. A. (2011). <i>A method for in situ SEM fracture studies of brittle materials using the double torsion technique : application to nuclear graphite</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/11099en_ZA
dc.identifier.chicagocitationRosie, Kathryn A. <i>"A method for in situ SEM fracture studies of brittle materials using the double torsion technique : application to nuclear graphite."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2011. http://hdl.handle.net/11427/11099en_ZA
dc.identifier.citationRosie, K. 2011. A method for in situ SEM fracture studies of brittle materials using the double torsion technique : application to nuclear graphite. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Rosie, Kathryn A AB - This work concerned the design and development of a miniature double torsion (DT) testing rig, for use inside the chamber of a scanning electron microscope, to perform in situ loading studies of brittle materials using the DT fracture mechanics specimen. The in situ performance of the system inside the SEM was highly satisfactory, while still providing free rotation of the attached stepper motor. Crack growth rates of down to 19nm/s were directly observed in PMMA specimens. It was concluded that the technique displayed merit in its ability to contribute to the knowledge base of slow cracking and damage development in brittle materials, with the advantage being that the gearing ratios of the current device resulted in slower specimen loading rates, which were more controlled, than reported previously. DA - 2011 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2011 T1 - A method for in situ SEM fracture studies of brittle materials using the double torsion technique : application to nuclear graphite TI - A method for in situ SEM fracture studies of brittle materials using the double torsion technique : application to nuclear graphite UR - http://hdl.handle.net/11427/11099 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/11099
dc.identifier.vancouvercitationRosie KA. A method for in situ SEM fracture studies of brittle materials using the double torsion technique : application to nuclear graphite. [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/11427/11099en_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.titleA method for in situ SEM fracture studies of brittle materials using the double torsion technique : application to nuclear graphiteen_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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