| dc.contributor.advisor | Lu, Hongbing | |
| dc.contributor.author | Cakiroglu, Dilek | |
| dc.date.accessioned | 2014-04-17T19:52:07Z | |
| dc.date.available | 2014-04-17T19:52:07Z | |
| dc.date.issued | 2009-05-01 | |
| dc.identifier.uri | https://hdl.handle.net/11244/9907 | |
| dc.description.abstract | Nanoindentation load-displacement data of polyvinyl acetate (PVAc) was obtained at different temperatures ranging from ~20 oC to 42 oC using two novel equipments, Hysitron Triboindenter and Interfacial Force Microscopy (IFM). Load-displacement data was analyzed using viscoelastic contact theory and JKR contact mechanics theory. Load-displacement data obtained by Hysitron Triboindenter was analyzed using viscoelastic theory and shear creep compliance curves were obtained at different temperatures. Load-displacement data obtained by IFM was analyzed using viscoelastic theory and JKR contact mechanics theory and shear creep compliance curves were obtained at different temperatures. Small drift rate in load-displacement data obtained by Hysitron Triboindenter resulted in big error in shear creep compliance curves so that master shear creep compliance curve could not be formed. Glass transition temperature of PVAc was found at ~34 oC using shear creep compliance curves and it showed that glass transition temperature of PVAc is not unique. Adhesion forces between PVAc and tip was observed by IFM and invalidity of JKR method for PVAc was shown. | |
| dc.format | application/pdf | |
| dc.language | en_US | |
| dc.publisher | Oklahoma State University | |
| dc.rights | Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material. | |
| dc.title | Exploratory Investigation of Viscoelastic Nanoindentation on Polyvinyl Acetate | |
| dc.type | text | |
| dc.contributor.committeeMember | Singh, Raman P. | |
| dc.contributor.committeeMember | Kalkan, A. Kaan | |
| osu.filename | Cakiroglu_okstate_0664M_10174.pdf | |
| osu.college | Engineering, Architecture, and Technology | |
| osu.accesstype | Open Access | |
| dc.description.department | Mechanical & Aerospace Engineering | |
| dc.type.genre | Thesis | |
| dc.subject.keywords | interfacial force microscopy | |
| dc.subject.keywords | nanoindentation | |
| dc.subject.keywords | polyvinyl acetate | |
| dc.subject.keywords | shear creep compliance | |
| dc.subject.keywords | viscoleasticity | |
