摘要
本文探討內含單一裂紋之無限域均質線彈性體，在裂紋內填入彈性體後，其裂紋尖端之應力強度因子值。填充物性質以線性彈簧模擬之。文中引用在無限域中含單一裂紋受無窮遠端作用力之基本解，與假設作用於裂紋表面之未知應力，利用線性疊加原理，推演未知應力的奇異積分方程式。將此奇異積分方程式離散化後，推得其結果，並可藉此得到應力強度因子值。文中分別就平面內及反平面內的問題、改變裂紋內填入彈性體的位置，藉以求取分段位置與應力強度因子間的關係。

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