Load Transfer Analysis in Short Carbon Fibers with Radially-Aligned Carbon Nanotubes Embedded in a Polymer Matrix
A novel shortfiber composite in which the microscopic advanced fiber reinforcements are coated with radially aligned carbon nanotubes (CNTs) is analyzed in this study. A shear-lag model is developed to analyze the load transferred to such coated fibers from the aligned-CNT reinforced matrix in a hyb...
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| Format: | Article |
| Language: | en_US |
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Society for the Advancement of Material and Process Engineering
2012
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| Online Access: | http://hdl.handle.net/1721.1/71852 https://orcid.org/0000-0003-3530-5819 |
| _version_ | 1826188156062400512 |
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| author | Ray, M. C. Guzman de Villoria, Roberto Wardle, Brian L. |
| author2 | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics |
| author_facet | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Ray, M. C. Guzman de Villoria, Roberto Wardle, Brian L. |
| author_sort | Ray, M. C. |
| collection | MIT |
| description | A novel shortfiber composite in which the microscopic advanced fiber reinforcements are coated with radially aligned carbon nanotubes (CNTs) is analyzed in this study. A shear-lag model is developed to analyze the load transferred to such coated fibers from the aligned-CNT reinforced matrix in a hybrid composite application. It is found that if the carbon fibers are coated with radially aligned CNTs, then the axial load transferred to the fiber is reduced due to stiffening of the matrix by the CNTs. Importantly, it is shown that at low loading of CNTs in the polymer matrix, there is a significant reduction in the maximum interfacial shear stress, e.g., at 1% CNTs, there is an ~25 % reduction in this maximum stress. Further, the modification in the load sharing between the fiber and the matrix plateaus at ~2% CNT matrix loading, indicating a small but critical window for engineering the interface in this manner. Effects of the variation of the aspect ratio of the fiber, CNT volume fraction and the application of radial load on the load transferred to such CNT coated fibers are also investigated. |
| first_indexed | 2024-09-23T07:55:25Z |
| format | Article |
| id | mit-1721.1/71852 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T07:55:25Z |
| publishDate | 2012 |
| publisher | Society for the Advancement of Material and Process Engineering |
| record_format | dspace |
| spelling | mit-1721.1/718522022-09-23T09:38:39Z Load Transfer Analysis in Short Carbon Fibers with Radially-Aligned Carbon Nanotubes Embedded in a Polymer Matrix Ray, M. C. Guzman de Villoria, Roberto Wardle, Brian L. Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Wardle, Brian L. Guzman de Villoria, Roberto Wardle, Brian L. A novel shortfiber composite in which the microscopic advanced fiber reinforcements are coated with radially aligned carbon nanotubes (CNTs) is analyzed in this study. A shear-lag model is developed to analyze the load transferred to such coated fibers from the aligned-CNT reinforced matrix in a hybrid composite application. It is found that if the carbon fibers are coated with radially aligned CNTs, then the axial load transferred to the fiber is reduced due to stiffening of the matrix by the CNTs. Importantly, it is shown that at low loading of CNTs in the polymer matrix, there is a significant reduction in the maximum interfacial shear stress, e.g., at 1% CNTs, there is an ~25 % reduction in this maximum stress. Further, the modification in the load sharing between the fiber and the matrix plateaus at ~2% CNT matrix loading, indicating a small but critical window for engineering the interface in this manner. Effects of the variation of the aspect ratio of the fiber, CNT volume fraction and the application of radial load on the load transferred to such CNT coated fibers are also investigated. 2012-07-26T19:30:53Z 2012-07-26T19:30:53Z 2009-01 Article http://purl.org/eprint/type/JournalArticle 1070-9789 http://hdl.handle.net/1721.1/71852 Ray, M.C., Roberto Guzman de Villoria and brian L. Wardle. "Load Transfer Analysis in Short Carbon Fibers with Radially-Aligned Carbon Nanotubes Embedded in a Polymer Matrix." Journal of Advanced Materials, issue 4, (Jan. 2009). https://orcid.org/0000-0003-3530-5819 en_US http://www.sampe.org/news/jam/2009/2009jamissue4.aspx Journal of Advanced Materials Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Society for the Advancement of Material and Process Engineering Guzman de Villloria |
| spellingShingle | Ray, M. C. Guzman de Villoria, Roberto Wardle, Brian L. Load Transfer Analysis in Short Carbon Fibers with Radially-Aligned Carbon Nanotubes Embedded in a Polymer Matrix |
| title | Load Transfer Analysis in Short Carbon Fibers with Radially-Aligned Carbon Nanotubes Embedded in a Polymer Matrix |
| title_full | Load Transfer Analysis in Short Carbon Fibers with Radially-Aligned Carbon Nanotubes Embedded in a Polymer Matrix |
| title_fullStr | Load Transfer Analysis in Short Carbon Fibers with Radially-Aligned Carbon Nanotubes Embedded in a Polymer Matrix |
| title_full_unstemmed | Load Transfer Analysis in Short Carbon Fibers with Radially-Aligned Carbon Nanotubes Embedded in a Polymer Matrix |
| title_short | Load Transfer Analysis in Short Carbon Fibers with Radially-Aligned Carbon Nanotubes Embedded in a Polymer Matrix |
| title_sort | load transfer analysis in short carbon fibers with radially aligned carbon nanotubes embedded in a polymer matrix |
| url | http://hdl.handle.net/1721.1/71852 https://orcid.org/0000-0003-3530-5819 |
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