本文以實驗方法探討擬均向碳纖維強化聚醚醚酮(Gr/PEEK)複合材料 積層板承受低能量衝擊且經修補後之靜態拉伸與拉伸—壓縮疲勞性質，且利用非破壞檢測C-scan及微觀形態學SEM觀察其破壞模式，並針對其損傷特性以不同方法修補，以了解修補後複合材料在不同應力負荷下承受拉伸—壓縮疲勞測試勁度與疲勞壽命。
實驗結果顯示，當材料承受衝擊損傷後，在低應力等級之疲勞壽命衰減程度較大，且隨著衝擊能量的增加，壽命衰減愈嚴重。複合材料經25%Ei低能量衝擊並經修補後，其靜態拉伸強度及疲勞性質皆有提昇，修補後之低應力等級疲勞壽命改善程度較佳；而複合材料經45%Ei低能量衝擊後，試片內有部分纖維斷裂，另再加0。方向之預浸材上下各一層補片以熱壓法修補，結果顯示其靜態拉伸強度及低應力等級之疲勞壽命大幅增加，顯示0。層補片的確具有補強效果。複合材料承受拉伸—壓縮疲勞負載，其疲勞壽命較拉伸—拉伸疲勞壽命為短，而壓縮負載加速衝擊造成之裂縫和脫層延伸，使複材經25%Ei及45%Ei低能量衝擊過後之疲勞壽命衰減更多，顯示衝擊損傷加上壓縮破壞嚴重影響材料的疲勞性質。

在複合材料疲勞負載過程中，勁度先上升而後下降，複材承受低應力等級者下降幅度較承受高應力等級者明顯，顯示在低應力等級時，試片具有較佳的承受負載能力；由C-scan觀察疲勞過程損傷發展，發現脫層朝向施力方向延伸，且因基材的塑性性質使試片在斷裂前無較大的脫層產生。由SEM觀察破壞形態可發現纖維挫曲和壓縮破壞，以韋伯分佈函數分析實驗數據可合理描述材料之靜態與疲勞性質。

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