Many researchers have studied the interfacial shear stress (ISS) in nanocomposites through theoretical calculation, computational simulation or sophisticated nanomanipulation experiment measurement. In this research, we attempt to directly calculate ISS values in actual nanocomposites based on a modified Cox's model using tensile test results of various macroscopic carbon nanotube (CNT) nanocomposites. Young's modulus, tensile strength and strain of CNT ropes rather than individual CNT properties were applied into the model. The effects of functionalization, CNT rope length, volume fraction and CNT type (SWNT, DWNT, MWNT) on interfacial shear stress were studied. It was found that the functionalization increased the mechanical properties of both interfacial bonding and DWNT and MWNT rope themselves; however, it decreased the mechanical properties of SWNT ropes. The major failure mode of the CNT nanocomposites was identified to be CNT rope rupture. The calculation results revealed that the ISS values in the nanocomposites are comparable with the ones reported in literature. / A Thesis submitted to the Department of Industrial and Manufacturing Engineering in partial fulfillment of the requirements
for the degree of Master of Science. / Spring Semester, 2010. / December 14, 2009. / Interfacial Shear Stress, Functionalization, Carbon Nanotube, Nanocomposite, Epoxy / Includes bibliographical references. / Richard Liang, Professor Directing Thesis; Ben Wang, Committee Member; Okenwa Okoli, Committee Member.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_253940 |
| Contributors | Wang, Xianping (authoraut), Liang, Richard (professor directing thesis), Wang, Ben (committee member), Okoli, Okenwa (committee member), Department of Industrial and Manufacturing Engineering (degree granting department), Florida State University (degree granting institution) |
| Publisher | Florida State University, Florida State University |
| Source Sets | Florida State University |
| Language | English, English |
| Detected Language | English |
| Type | Text, text |
| Format | 1 online resource, computer, application/pdf |
| Rights | This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). The copyright in theses and dissertations completed at Florida State University is held by the students who author them. |
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