臺灣博碩士論文加值系統

摘 要
剝離試驗（peel test）為用來測定兩物體間界面之黏結強度的一個方便快速且有效的方法，本研究試著利用界面破壞能的原理將剝離試驗應用於雙L型樑試驗（Double-L beam test），在相同的界面下，基本上剝離試驗與雙L型樑試驗兩者之界面破壞能應相等，因此亦希望能夠預測雙L型樑試驗在FRP發生剝離時之臨界剝離力。
本研究主要是以有限元素法對剝離試驗及雙L型樑試驗作數值上之模擬與比較，分別以不同之複材貼片長度、剝離角度、裂縫長度及施加載重為改變因子進行分析，進而比較各別之差異。另外，本論文裡亦針對文獻【22】，利用本分析程式對文獻內容進行數值上之模擬分析，比較本程式之分析結果與文獻內容之差異性。
有限元素分析結果顯示，在不同複材貼片長度條件下，界面破壞能之改變趨勢並不明顯；而在其它的條件下，界面破壞能之改變趨勢則較為明顯。而在文獻【22】中，可明顯地比較出本程式分析之結果與ABAQUS分析之結果較為接近，理論公式推導的 、 及 比值則會有相當大的差異性。

Abstract
Peel test is an effective method to measure the bonding strength between different objects. The aim of this study is to make peel test be applied to Double-L beam test and find the relationship between the two tests. In Basic, the interfacial fracture energy of peel test is equal to the interfacial fracture energy of Double-L beam test with the same interface, therefore it is also hoped to predict the critical peel force of Double-L beam test while the specimens are peeled.
In this study, peel test and Double-L beam test are analyzed by means of finite element method. The different factors considered in this study include the length of specimen and crack, the peel angle and the different load. Besides, this study also analyze literature【22】by means of T25.
Numerical results analyzed by finite element method indicate that the change in interfacial fracture energy is not obvious under different specimen length condition. But the change in interfacial fracture energy is more obvious under other conditions. And about literature【22】, it can be obviously find that the analytical results calculated from T25 are more similar to the results from ABAQUS. But the results calculated from theoretical formula are much different with the results from ABAQUS.

目 錄
中文摘要Ⅰ
英文摘要Ⅱ
目錄Ⅲ
表目錄Ⅵ
圖目錄Ⅷ
第一章 緒論
1-1 研究動機1
1-2 研究目的3
1-3 研究內容4
第二章 文獻回顧5
2-1 文獻回顧5
2-2 基本破壞力學回顧12
2-2-1 應力強度因子13
2-2-2 能量釋放率19
2-3 混合模式線彈性破壞力學有限元素分析22
2-3-1 程式之理論背景22
2-3-2 程式之理論基礎24
第三章 複合材料貼片與混凝土界面強度實驗31
3-1 剝離實驗31
3-1-1 剝離實驗界面破壞力學理論31
3-1-2 剝離實驗裝置34
3-2 雙L型樑實驗36
3-2-1 雙L型樑實驗界面破壞力學理論36
3-2-2 雙L型樑實驗裝置41
3-3 實驗設計42
3-3-1 試體製作42
3-3-1-1 剝離實驗試體製作42
3-3-1-2 雙L型樑實驗試體製作44
3-3-2 材料實驗44
3-3-2-1 複材試片拉伸實驗44
3-3-2-2 混凝土抗壓實驗45
3-4 剝離實驗流程45
3-5 雙L型樑實驗流程46
第四章 混合模式線彈性破壞力學有限元素分析54
4-1 程式之應用與參考文獻之驗證54
4-1-1 程式之應用55
4-1-2 參考文獻之驗證56
4-2 材料試驗與程式分析結果60
4-2-1 材料試驗結果60
4-2-2 分析流程與結果61
4-2-2-1 網格之建立61
4-2-2-1.1 剝離實驗網格之建立61
4-2-2-1.2 雙L型樑實驗網格之建立62
4-2-2-2 分析結果與討論63
4-2-2-2.1 剝離實驗分析結果63
4-2-2-2.2 雙L型樑實驗分析結果65
4-3 雙L型樑實驗與剝離實驗之結果67
4-3-1 剝離實驗結果67
4-3-2 雙L型樑實驗結果67
第五章 結論與建議143
參考文獻145
照片附錄149

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