一般工程構件及航空機件常因製造及使用過程中，產生不可預知的局部性損傷裂紋。在考慮時效性及經濟效益下，如果構件損傷程度尚未達到影響整體結構安全時，可以用修補的方式延長構件壽命；而纖維強化之高分子基複合材料，具有高比強度和高比勁度，而且其成型性及修補性佳，是優良的修補材料。
隨著複合材料應用在各種工程的比例逐漸提高，複合材料的修補之研究勢必日趨重要。因此本文將針對含圓孔及含裂縫的熱固性複合材料-碳纖維╱環氧樹脂積層板，以單邊貼片修補的方式，探討其經修補後對於靜態強度及疲勞壽命的影響與修補效益。

本論文以壓力釜壓製積層板，試片疊序為[0╱45╱90╱-45]2S，修補片疊序為[0]4。將修補片黏在含圓孔試片及含裂縫試片的其中一側，含圓孔試片並考慮以AB膠及CN膠兩種不同的黏著劑黏貼修補片。實驗內容包括：靜態拉伸試驗、拉伸疲勞試驗、殘留勁度、C-scan超音波檢測、疲勞破壞型態。

實驗結果發現：以AB膠或以CN膠黏修補片都能提升含圓孔試片的靜態強度及疲勞壽命，而且以AB膠黏修補片可得到較好的修補效果；而以CN膠黏貼片來修補含裂縫試片，不但不能發揮修補的效果，反而會降低試片的靜態強度及疲勞壽命。

單邊貼修補片會造成試片的中立軸偏移，使試片彎曲而加速背面脫層的成長。尤其是CN膠，因為其黏性較強，所以在疲勞過程初期，修補片緊黏在試片上，因此可以很清楚地看到試片中間隨著疲勞過程的進行而前後搖動，以致於加速脫層的成長而折損疲勞壽命； AB膠黏性較差，所以比較快脫離試片而承受較少的彎曲效應，雖然提升的強度不多，但亦不會折損太多的疲勞壽命。

經修補後之含圓孔試片受彎曲效應的影響較少，其修補效果仍大於折損，因此可以提高靜態強度及疲勞壽命。

經修補後之含裂縫試片受彎曲效應的影響較大，而且折損大於修補效果，因此反而降低靜態強度及疲勞壽命。所以，含裂縫試片不適合以高黏性的黏著劑進行單邊貼片修補。

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