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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/88854完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 單秋成 | zh_TW |
| dc.contributor.advisor | Chow-Shing Shin | en |
| dc.contributor.author | 王俊凱 | zh_TW |
| dc.contributor.author | Chun-Kai Wang | en |
| dc.date.accessioned | 2023-08-15T18:03:47Z | - |
| dc.date.available | 2023-11-09 | - |
| dc.date.copyright | 2023-08-15 | - |
| dc.date.issued | 2023 | - |
| dc.date.submitted | 2023-08-07 | - |
| dc.identifier.citation | 1. Starkova, O., et al., Water transport in epoxy/MWCNT composites. European Polymer Journal, 2013. 49(8): p. 2138-2148.
2. Guo, F.-L., et al., Multiscale modeling of mechanical behaviors of carbon fiber reinforced epoxy composites subjected to hygrothermal aging. Composite Structures, 2021. 256: p. 113098. 3. Ooijevaar, T.H., et al., Vibration based Structural Health Monitoring of a composite T-beam. Composite Structures, 2010. 92(9): p. 2007-2015. 4. Montalvão, D., A.M.R. Ribeiro, and J. Duarte-Silva, A method for the localization of damage in a CFRP plate using damping. Mechanical Systems and Signal Processing, 2009. 23(6): p. 1846-1854. 5. Gunnion, A.J. and I. Herszberg, Parametric study of scarf joints in composite structures. Composite Structures, 2006. 75(1): p. 364-376. 6. Kahraman, R., M. Sunar, and B. Yilbas, Influence of adhesive thickness and filler content on the mechanical performance of aluminum single-lap joints bonded with aluminum powder filled epoxy adhesive. Journal of Materials Processing Technology, 2008. 205(1): p. 183-189. 7. Banea, M.D. and L.F.M. da Silva, Mechanical Characterization of Flexible Adhesives. The Journal of Adhesion, 2009. 85(4-5): p. 261-285. 8. Gong, Q.-m., et al., Thermal properties of aligned carbon nanotube/carbon nanocomposites. Materials Science and Engineering: A, 2004. 384(1): p. 209-214. 9. Guo, S., S. Dong, and E. Wang, Constructing Carbon-Nanotube/Metal Hybrid Nanostructures Using Homogeneous TiO2 as a Spacer. Small, 2008. 4(8): p. 1133-1138. 10. Jin, F.-L., X. Li, and S.-J. Park, Synthesis and application of epoxy resins: A review. Journal of Industrial and Engineering Chemistry, 2015. 29: p. 1-11. 11. Choi, I., et al., Radar absorbing sandwich construction composed of CNT, PMI foam and carbon/epoxy composite. Composite Structures, 2012. 94(9): p. 3002-3008. 12. Poornima, Rashmi, and J. Sundara Rajan, Effective use of nano-carbons in controlling the electrical conductivity of epoxy composites. Composites Science and Technology, 2021. 202: p. 108554. 13. Lim, A.S., et al., Damage sensing of adhesively-bonded hybrid composite/steel joints using carbon nanotubes. Composites Science and Technology, 2011. 71(9): p. 1183-1189. 14. Gao, L., et al., Coupled carbon nanotube network and acoustic emission monitoring for sensing of damage development in composites. Carbon, 2009. 47(5): p. 1381-1388. 15. Vavouliotis, A., A. Paipetis, and V. Kostopoulos, On the fatigue life prediction of CFRP laminates using the Electrical Resistance Change method. Composites Science and Technology, 2011. 71(5): p. 630-642. 16. Wang, Y. and T.H. Hahn, AFM characterization of the interfacial properties of carbon fiber reinforced polymer composites subjected to hygrothermal treatments. Composites Science and Technology, 2007. 67(1): p. 92-101. 17. Niu, Y.-F., Y. Yan, and J.-W. Yao, Hygrothermal aging mechanism of carbon fiber/epoxy resin composites based on quantitative characterization of interface structure. Polymer Testing, 2021. 94: p. 107019. 18. Jojibabu, P., et al., Effect of carbon nano-filler addition on the degradation of epoxy adhesive joints subjected to hygrothermal aging. Polymer Degradation and Stability, 2017. 140: p. 84-94. | - |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/88854 | - |
| dc.description.abstract | 本研究為透過非破壞監測膠合接口於溫濕熱環境內部損傷程度。將碳纖維強化基板塗佈含有奈米碳管的環氧樹脂，使其試片具有導電性，並於試片兩側埋入銅箔接膠帶，以便監測其試片電性資料。
試片於高溫高濕環境及高溫低濕環境試驗中，監測試片於不同天數下，電性變化情形，以及經過濕熱老化後，機械性質下降的程度。抑或是透過電性的趨勢或改變，掌握其破壞的機制，能否觀察出介面弱化與基材弱化相對應到的電性趨勢，最後也透過SEM觀察其破斷面微觀破壞情形。 實驗結果顯示，利用電壓監控試片於高溫高濕及高溫低濕過程，僅能做定性分析，不太適合用來做定量分析。透過SEM觀察到，高溫高濕試片複材纖維有明顯樹脂塑化、纖維拔出(Fiber Pulled-Out)及介面弱化現象，高溫低濕試片複材本身無纖維拔出(Fiber Pulled-Out)，搭接劑斷面上有明顯脆性斷裂痕跡。 | zh_TW |
| dc.description.abstract | This study deals with monitoring single lap CNT-epoxy joints of carbon fiber reinforced plastics (CFRP) by conductivity in hygrothermal environment. The adhesive is conductive because it’s made of epoxy resin mixed with carbon nanotubes. The material is of the sheet in this experiment is made of CFRP by thermoforming .For voltage change measurement, copper foil is embedded in CFRP and welded with wires to measure the voltage change of entire adhesive joint.
The specimen will be set in hygrothermal environment and observe the voltage changes and mechanical properties during the experiment. .Find out the relationship between conductivity and failure mechanism. Using SEM to analyze materials’ fracture surface. The result of the experiments showed that voltage change measurement could do qualitative analysis to the load and aging experiment period. The spcimens of high temperature and moisture experiment reveals resin plastic、Fiber Pulled-Out and weakening of interface but it doesn’t reveal in the specimens which is set in high temperature and low moisture environment. It has been observed that the brittle fracture trace on the adhesive joint. | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2023-08-15T18:03:47Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2023-08-15T18:03:47Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | 致謝 I
摘要 II Abstract III 目錄 IV 圖目錄 VIII 表目錄 XI 第一章 緒論 1 1.1 前言 1 1.2 研究動機 1 1.3 章節說明 2 第二章 文獻回顧 3 2.1 膠合接口 3 2.1.1 單搭接膠合接口(SLJ) 3 2.1.2 膠合接口製備參數 3 2.2 電性監測 4 2.2.1 奈米碳管 4 2.2.2 電性趨勢與破壞機制 4 2.2.3 循環拉伸時初期電阻下降原因 8 2.3 高溫高濕 8 2.4 總結 11 第三章 實驗材料與儀器 12 3.1 複材製備相關材料與設備 12 3.1.1 搭接劑 12 3.1.2 多壁奈米碳管(Muti-wall carbon nanotube, MWCNT) 12 3.1.3 碳纖維預浸布 13 3.1.4 噴砂機 13 3.1.5 鑽石砂輪機 14 3.1.6 改良式熱壓成型系統 15 3.2 搭接劑調配相關設備 15 3.2.1 電磁加熱攪拌器 15 3.2.2 超音波打碎機 16 3.2.3 均質機 17 3.3 溫濕熱環境相關設備 17 3.3.1 恆溫水槽 17 3.3.2 恆溫恆濕箱 18 3.3.3 熱風循環烘箱 19 3.4 電性量測與資料擷取設備 20 3.4.1 電源供應器 20 3.4.2 多功能I/O介面卡 20 3.5 萬能材料試驗機 21 第四章 實驗方法與流程 22 4.1 試片命名規則 22 4.2 單搭接碳纖維強化複合材料製備 22 4.2.1 單搭接膠合接口內埋同銅箔試片製備 22 4.2.2 搭接試片前處理 23 4.2.3 搭接與搭接劑調配 24 4.3 高溫高濕環境實驗 26 4.4 高溫低濕環境實驗 26 4.5 乾燥 27 4.6 循環加載卸載拉伸測試 27 4.7 破斷面觀察 27 第五章 結果與討論 28 5.1 試片強度品管 28 5.2 高溫高濕 30 5.2.1 高溫高濕下電壓變化 30 5.2.2 高溫高濕15天後乾燥5天強度測試 35 5.2.3 高溫高濕30天乾燥5天強度測試 35 5.2.4 高溫高濕30天強度測試 37 5.2.5 高溫高濕試片乾燥與未乾燥試片強度比較 38 5.2.6 高溫高濕150天乾燥5天強度測試 39 5.2.7 高溫高濕電壓變化與強度關係 40 5.2.8 高溫高濕總結 42 5.3 高溫低濕 44 5.3.1 高溫低濕電壓變化 44 5.3.2 高溫低濕30天乾燥5天強度測試 47 5.3.3 高溫低濕90天乾燥5天強度測試 48 5.3.4 高溫低濕電壓變化與強度關係 49 5.3.5 高溫低濕總結 50 5.4 循環加載卸載拉伸試驗 51 5.4.1 電性變化 51 5.5 破斷面觀察結果 58 5.5.1 試片切面氣泡 58 5.5.2 破斷面觀察 59 第六章 結論與未來展望 70 6.1 結論 70 6.2 未來展望 70 參考文獻 71 附錄 73 循環加載卸載拉伸試驗 73 高溫高濕與高溫低濕實驗過程電壓變化 96 高溫高濕15天乾燥5天試片 96 高溫高濕30天乾燥5天試片 98 高溫高濕30天未乾燥試片 100 高溫高濕150天乾燥5天試片 102 高溫低濕30天乾燥5天試片 103 高溫低濕90天乾燥5天試片 105 | - |
| dc.language.iso | zh_TW | - |
| dc.subject | 單搭接膠合接口 | zh_TW |
| dc.subject | 電壓監測結構完整性 | zh_TW |
| dc.subject | 碳纖維複合材料 | zh_TW |
| dc.subject | 濕熱老化 | zh_TW |
| dc.subject | 奈米碳管 | zh_TW |
| dc.subject | Carbon-fiber reinforced composite | en |
| dc.subject | Voltage change measurement | en |
| dc.subject | Hygrothermal aging | en |
| dc.subject | Single Lap Joint | en |
| dc.subject | Carbon nanotubes | en |
| dc.title | 利用導電性監測複材膠合接口濕熱老化 | zh_TW |
| dc.title | Monitoring hygrothermal aging in single lap joints of CFRP by conductivity | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 111-2 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.oralexamcommittee | 林志郎;沈銘原;任貽明 | zh_TW |
| dc.contributor.oralexamcommittee | Chih-Lang Lin;Ming-Yuan Shen;Yi-Ming Jen | en |
| dc.subject.keyword | 單搭接膠合接口,碳纖維複合材料,電壓監測結構完整性,濕熱老化,奈米碳管, | zh_TW |
| dc.subject.keyword | Single Lap Joint,Carbon-fiber reinforced composite,Voltage change measurement,Hygrothermal aging,Carbon nanotubes, | en |
| dc.relation.page | 105 | - |
| dc.identifier.doi | 10.6342/NTU202302243 | - |
| dc.rights.note | 同意授權(全球公開) | - |
| dc.date.accepted | 2023-08-09 | - |
| dc.contributor.author-college | 工學院 | - |
| dc.contributor.author-dept | 機械工程學系 | - |
| 顯示於系所單位： | 機械工程學系 | |
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