碳纖維/環氧樹脂複合疊層板疲勞損傷性質之研究

近十幾年來，碳纖維複合材料在構建上的應用有逐漸增加的趨勢，而大多數材料的破壞則在長時間的疲勞過程中所引起，由於疲勞破壞發生難以預測的狀態下發生，因此碳纖維複合材料在使用上的壽命預測變得非常重要。本研究建立碳纖維複合材料疊層板在不同的應力參數下的疲勞損傷檢測方法、並以疲勞勁度衰減的觀點建立關係模型。研究中以應力頻率、應力大小和應力強度為控制參數，將經過疲勞測試驗後之試片以C-SCAN檢查試片內部並獲取掃描影像；利用所撰寫的程式轉換影像，以量化試片的疲勞損傷程度值。再把實驗測得的疲勞勁度與量化的疲勞損傷值做比對以建立彼此關係模型。

關鍵字

疲勞；碳纖維疊層板；破壞； C-Scan

並列摘要

In recent years, the application of carbon fiber composite materials in the building on a growing trend, and most of the material damage caused in the long time fatigue process, due to the fatigue failure was difficult to predict when it occurred, so the life prediction in carbon fiber composite materials were became very important. In this study established Carbon/Epoxy laminate composite materials at the different stress parameters of fatigue damage on the detection method and the viewpoint of fatigue stiffness degradation to establish the relational model. It explored the fatigue damage properties of carbon/epoxy laminate by conducting the fatigue testing with different specific stresses, frequencies and stress ratios. Inspection images of loaded specimens by C-SCAN were obtained. By the program to convert images to quantify the degree of fatigue damage levels of the specimen value. Finally the experimentally results were compared to the fatigue stiffness and quantitative of fatigue damage and develop the model relational of each other.

並列關鍵字

Fatigue ； Carbon/Epoxy Laminate ； Damage ； C-Scan

參考文獻

[22] Rwei-Ching Chang *1, Chung-Chen Tsao 2, Kuen-Yi Chen1,2007,” Ultrasonic Delamination Inspection of CompositeMaterials under Fatigue Load”, Journal of Advanced Engineering Vol. 2, No. 3, pp. 151-155

[2] Ercan Sevkat, Jackie Li, Benjamin Liaw, Feridun Delale, 2008,” A statistical model of electrical resistance of carbon ﬁber reinforced composites under tensile loading”, Composites Science and Technology ,68,pp.2214-2219,

[3] Yuan Qinlu, Li Yulong, Li Hejun, Li Shuping, Guo Lingjun, 2008,” Quasi-static and dynamic compressive fracture behavior of carbon/carbon composites”, Carbon, 46,pp.699-703

[4] D. Samborsky, J. Wilson, Pancasatya Agastra, F. Mandell, 2008,” Delamination at Thick Ply Drops in Carbon and Glass Fiber Laminates Under Fatigue Loading”, ASME ,Vol. 130,pp.031001 1-8

[5] Min-Seok Sohn and Ziao-Zhi Hu*,1995, ”Comparative study of dynamic and ststic delamination behavior of carbon fiber/epoxy composite laminates” ,Composites,26,pp,849-858

國際替代計量

碳纖維/環氧樹脂複合疊層板疲勞損傷性質之研究

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