臺灣博碩士論文加值系統

本研究是利用熱壓成型的方式製作碳纖維瓦楞結構板材，並以此瓦楞板材為核心材料與面材為單向(Uni-direction, UD)碳纖維板來製作全碳纖維瓦楞核心之三明治材料後再進行一系列的性能評估(性能評估包含：側向壓縮、正向壓縮、三點彎曲與四點彎曲等測試)，由於本研究中所探討的三明治結構後續應用領域是鎖定離岸風電的風機機殼與結構，雖然目前市面上大多的風機所使用的三明治核心材料多為發泡材，但因發泡材無法提供足夠彎曲特性來製作風機外殼幾何複雜處的部件，且使用的核心發泡材料或三明治材料相關零件受嚴苛的離岸環境影響所產生的核心發泡材料損傷而使的的整體風機結構性能下降的問題發生，因此，本研究中開發出具有可彎折的碳纖複材瓦楞結構核心材，且使用纖維複材去製作以提供抗環境老化的性能，並針對研究中所探討的三明治板材將進行溫濕老化實驗，了解全碳纖的瓦楞核心三明治板受環境老化後對機械特性與破壞性能的影響。而為了了解常用的三明治核心材料(蜂巢)和研究中所開發的碳纖維複材瓦楞核心三明治板的性能差異，研究中也會將蜂巢結構所製作的三明治結構板材進行相同的測試(老化vs機械與破壞特性測試)並將結果與研究中所開發出來的碳纖維瓦楞核心三明治板進行比較與驗證。

In this study, the carbon fiber corrugated structural sheet was made by hot pressure process, and the corrugated sheets were used as the core material and the uni-direction (UD) carbon fiber planes were used as the face materials to make sandwich panel. The mechanical performance, such as lateral compression, forward compression, three-point bending and four-point bending, etc.) of the sandwich panel was evaluated. Since the subsequent application of the sandwich structure developed in this study is focused on the wind turbine in the offshore wind power-related industries. Although the sandwich core materials used in the most wind turbines on the market are mostly foam materials, the foam material cannot provide high-performance flexural characteristics to provide the application of wind turbine structures, and also foam core material may be damaged easily the harsh offshore environment. Consequently, the problem of overall wind turbine structure performance decline occurs. For this reason, a full carbon fiber sandwich structure with carbon corrugated core material was developed in this study. This sandwich panels were subjected to temperature and humidity aging. Experiments were conducted to understand the effect of environmental aging on the mechanical performance of the carbon fiber corrugated sandwich panels. In order to understand the difference in the performance between the commonly used sandwich core material of honeycomb and the carbon fiber composite corrugated core material developed in this study, the sandwich panel made of honeycomb was also be tested in the same experiments, and the results were compared with the carbon fiber composite corrugated sandwich panel.

摘要 I
ABSTRACT II
致謝 IV
目錄 VI
圖目錄 IX
表目錄 XV
符號說明 XVII
第 1 章 緒論 1
1.1 研究動機與目的 1
1.2 文獻回顧 4
第 2 章 理論介紹 6
2.1 複合材料概論 6
2.1.1 複合材料簡介 6
2.1.2 複合材料預浸材 9
2.1.3 複合材料成形製程 11
2.2 三明治夾芯結構介紹 14
2.2.1 三明治材料與材料特性 16
2.2.2 三明治工作原理 20
2.2.3 破壞模式 22
第 3 章 實驗材料與設備 28
3.1 實驗材料 28
3.1.1 碳纖維複合材料 28
3.1.2 試片成型與製作相關材料 30
3.1.3 試驗治具製作相關材料 33
3.2 實驗設備 34
3.2.1 研究試片成型與製作相關設備 34
3.2.2 研究相關設備 41
3.2.3 研究使用模具 43
第 4 章 實驗程序與方法 44
4.1 瓦楞模具設計 44
4.2 三明治彎曲試驗治具設計與製作 49
4.3 碳纖維瓦楞及三明治製作 52
4.4 碳纖維三明治測試 55
4.4.1 彎曲測試 55
4.4.2 彎曲計算方法 58
4.4.3 正向壓縮測試 61
4.4.4 邊向壓縮測試 63
4.4.5 耐候性測試 65
第 5 章 結果與討論 66
5.1 彎曲與剪切之特性與分析 66
5.2 正向壓縮之特性與分析 72
5.3 邊向壓縮之特性與分析 77
5.4 耐候試驗後殘留之正向壓縮特性及比較 83
5.5 耐候試驗後殘留之邊向壓縮特性及比較 88
5.6 DP420結構膠耐候測試 92
5.7 有限元素分析 95
5.7.1 彎曲破壞模式分析與比較 95
5.7.2 正向壓縮破壞模式分析 98
5.7.3 邊向壓縮破壞模式分析 100
第 6 章 結論與未來工作 105
6.1 結論 105
6.2 未來工作 106
第 7 章 參考文獻 107

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