林輝政臺灣大學:工程科學及海洋工程學研究所劉冠宏Liu, Kuan-HungKuan-HungLiu2007-11-262018-06-282007-11-262018-06-282003http://ntur.lib.ntu.edu.tw//handle/246246/50999在90年代,SEEMANN公司研發出SCRIMP法來取代傳統的手積法;在1999年由聯設引進國內,形成一種工法上的改革。但手積法和SCRIMP法在製造的過程和成品都有顯著的差異,如樹脂受壓的大小、厚度和纖維含有率等等,也因此吸引吾人想要去研究,2種工法做出的試片,機械性質表現上是否也是有顯著的差異呢? 本文先介紹SCRIMP的實驗流程及所需的工具材料,因為整個SCRIMP也是一各寬廣及深入的題目,所以本文將不著重在工法流程,強調實驗上的一些心得建議;接著對2種工法(SCRIMP&手積法)製做出的五種積層試片,進行4種材料試驗從靜態(拉伸試驗和彎曲試驗)、動態(疲勞試驗和衝擊試驗)來做一個整理和比較,看看是否有哪個工法表現較佳,甚至是哪個積層用哪個工法會表現更好。 本文主要的研究焦點是在疲勞試驗,研究試片的疲勞破壞過程、疲勞破壞模式、耐疲勞強度和疲勞破壞相片之整理,此外比較2種工法製做出的試片機械性質強弱與否,以讓未來工程師在設計結構和使用積層組合上有更充分的運用。 同時在衝擊試驗從能量的觀點來出發,從實驗方法,到比較單位面積衝擊能量、單位寬衝擊能量,依照4種不同的衝擊能量來做一個比較,以知道哪種工法可以吸收較多的衝擊能量,以及何種工法製做出的試片屬於脆性破壞,剩餘強度較高。 透過4種實驗,可以對這兩種工法做一個更深入的瞭解,當以後要應用在不同材料、不同工法時,可以更放心擇其長處加以運用。In 90 decade, SEMANN’s company invented the method of SCRIMP to replace the method of Hand lay-up(HLU) traditionally. In 1999,USDDC introduced from USA, it becomed a revolution of manufacture. But they had differences obious between process of manufacture and product by methods of SCRIMP and hand lay-up, for example the pressure of resin, thickness and fiber content etc. . It cause people wanted to study spicemen of differences of mechanical properties by 2 methods. First, this thesis introduce processes of experiment and tools by SCRIMP, we don’t focus in process of experiment because method of SCRIMP is also wide topic, and to emphasize suggestion of experiment. Then the mechanical properties, tension, bending, fatigue and impact behavior of composite materical manufactured by methods of SCRIMP and hand lay-up are tested. Four types of material test (tension, bending, fatigue and impact) and five kinds of specimens were considered in the experiments This thesis focus in the fatigue experiment, we studied the fatigue damage processes, fatigue damage modes, fatigue strength and pictures of destruct, then to compared and discussed in the thesis, experimental processes of SCRIMP. In impact test, our points of view by energy, to compare impact energy of unit area, impact energy of unit wide, we could know which one method could accept higher impact energy, which one specimen of methods belonged destroy of brittle. The bending load by method of hand lay-up was better than one by method of SCRIMP, the fatigue strength by method of hand lay-up was better, the impact behavior by method of hand lay-up was also better, but ductility by method of SCRIMP was better. The test data may useful for structure design of marine engineer.圖 目 錄 I 表 目 錄 VII 壹、 緒論 1 1. 研究動機 1 2. 論文之架構 3 貳、 SCRIMP製程 4 1. SCRIMP系統 4 (1) 樹脂及纖維 4 (2) 耗材 5 (3) 真空系統 9 2. SCRIMP流程 11 3. 實驗的經驗 12 參、 複合材料積層組合及靜態性質 17 1. 試片積層及外觀 17 2. 實驗方法及實驗設備 21 (1) 拉伸實驗 21 (2) 單板三點彎曲實驗 21 (3) 實驗設備 23 (4) 實驗流程 24 3. 拉伸實驗結果 29 (1) T1試片拉伸試驗 29 (2) T2試片拉伸試驗 29 (3) T3試片拉伸試驗 30 (4) T4試片拉伸試驗 31 (5) K1試片拉伸試驗 31 (6) K2試片拉伸試驗 32 (7) K3試片拉伸試驗 33 (8) K4試片拉伸試驗 33 (9) K5試片拉伸試驗 34 (10) K6試片拉伸試驗 35 (11) 各組試驗之結果 36 (12) 試驗照片 36 4. 彎曲實驗結果 40 (1) T1試片彎曲試驗 40 (2) T2試片彎曲試驗 41 (3) T3試片彎曲試驗 42 (4) T4試片彎曲試驗 43 (5) K1試片彎曲試驗 44 (6) K2試片彎曲試驗 45 (7) K3試片彎曲試驗 46 (8) K4試片彎曲試驗 47 (9) K5試片彎曲試驗 48 (10) K6試片彎曲試驗 49 (11) 各組試驗之結果 50 (12) 試驗照片 50 5. 拉伸及彎曲實驗數據整理和結論 52 (1) 拉伸部分 52 (2) 彎曲部分 53 肆、 材料疲勞特性量測 56 1. 疲勞破壞模式 56 (1) 樹脂破壞 (Matrix Damage) 57 (2) 纖維破壞 (Fiber Damage) 57 (3) 界面破壞 (Interfacial Damage) 58 2. 疲勞破壞過程 60 3. 疲勞實驗之參數 61 (1) 週期(Cycle) 61 (2) 疲勞負荷(Fatigue Loading) 61 (3) 位移振幅(Displacement Amplitude) 61 (4) 負荷比(Load Ratio) 62 4. 疲勞實驗方法 62 5. 疲勞實驗流程 64 6. 疲勞實驗結果 68 (1) T1試片疲勞試驗 68 (2) T2試片疲勞試驗 71 (3) T3試片疲勞試驗 75 (4) T4試片疲勞試驗 79 (5) K1試片疲勞試驗 83 (6) K2試片疲勞試驗 86 (7) K3試片疲勞試驗 90 (8) K4試片疲勞試驗 93 (9) K5試片疲勞試驗 97 (10) K6試片疲勞試驗 100 7. 試片照片 104 (1) 數百次∼數千次 106 (2) 數千次∼數十萬次 108 (3) 百萬次 111 8. SCRIMP和手積法疲勞結果之比較 114 伍、 衝擊試驗 119 1. 衝擊現象簡介 119 2. 衝擊試驗方法 119 3. 衝擊試驗設備 122 4. 實驗結果 123 5. 試片照片 131 6. SCRIMP法和手積法衝擊性質之比較 134 陸、 綜合結論 136 1. 靜態方面 136 (1) 拉伸試驗 136 (2) 彎曲試驗 136 2. 動態試驗 136 (1) 疲勞實驗 136 (2) 衝擊試驗 1373382332 bytesapplication/pdfen-US疲勞強度SCRIMP[SDGs]SDG14SCRIMP和手積法試片之疲勞強度探討Study on Fatigue Strength of SCRIMP and HLU Specimensthesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/50999/1/ntu-93-R90525042-1.pdf