Holographic determination of mechanical properties and behaviour of materials

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dc.contributor.advisorGryzagoridis, Jassonen_ZA
dc.contributor.authorSher, Arnolden_ZA
dc.date.accessioned2016-09-20T12:32:00Z
dc.date.available2016-09-20T12:32:00Z
dc.date.issued1991en_ZA
dc.descriptionBibliography: pages 116-122.en_ZA
dc.description.abstractThis study, which was primarily experimental, was aimed at investigating the feasibility and development of experimental procedures using holographic interferometry to determine different material properties such as: i) Modulus of Elasticity (E) ii) Poisson's ratio (v) (which included a study into the Modulus of Rigidity. (G)) iii) creep behaviour at room temperature. The Elastic Modulus (E) was determined from the relationship E=v²p, where v is the velocity of a longitudinal wave propagating in a long rod and p is the density of the rod. The technique of double-exposure holographic interferometry was used to record longitudinal waves propagating in long brass and steel rods. The waves were initiated by striking the end of the rod with a pendulum. From the pulsed laser interferograms obtained, the distance travelled by the wave in a known time could be measured and thereby the velocity (v) could be calculated. Experimental results indicate that it is feasible fo use holographic interferometry when dynamically determining the Elastic Modulus. The values produced for brass and steel compared favourably with the ones obtained from the ultrasonic velocity technique.en_ZA
dc.identifier.apacitationSher, A. (1991). <i>Holographic determination of mechanical properties and behaviour of materials</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/21833en_ZA
dc.identifier.chicagocitationSher, Arnold. <i>"Holographic determination of mechanical properties and behaviour of materials."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 1991. http://hdl.handle.net/11427/21833en_ZA
dc.identifier.citationSher, A. 1991. Holographic determination of mechanical properties and behaviour of materials. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Sher, Arnold AB - This study, which was primarily experimental, was aimed at investigating the feasibility and development of experimental procedures using holographic interferometry to determine different material properties such as: i) Modulus of Elasticity (E) ii) Poisson's ratio (v) (which included a study into the Modulus of Rigidity. (G)) iii) creep behaviour at room temperature. The Elastic Modulus (E) was determined from the relationship E=v²p, where v is the velocity of a longitudinal wave propagating in a long rod and p is the density of the rod. The technique of double-exposure holographic interferometry was used to record longitudinal waves propagating in long brass and steel rods. The waves were initiated by striking the end of the rod with a pendulum. From the pulsed laser interferograms obtained, the distance travelled by the wave in a known time could be measured and thereby the velocity (v) could be calculated. Experimental results indicate that it is feasible fo use holographic interferometry when dynamically determining the Elastic Modulus. The values produced for brass and steel compared favourably with the ones obtained from the ultrasonic velocity technique. DA - 1991 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1991 T1 - Holographic determination of mechanical properties and behaviour of materials TI - Holographic determination of mechanical properties and behaviour of materials UR - http://hdl.handle.net/11427/21833 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/21833
dc.identifier.vancouvercitationSher A. Holographic determination of mechanical properties and behaviour of materials. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 1991 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/21833en_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.titleHolographic determination of mechanical properties and behaviour of materialsen_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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