이종접합재의 원공에서 파생하는 계면균열에 대한 응력세기계수의 해석

Applications of bonded dissimilar materials in the fields of industries such as cars, aircrafts, electronic devices and engineering structures are very increasing. When the uses of bonded dissimilar materials which must fasten the structures with bolts and nuts or rivets in the holes, stress concentration occurs around the hole on the bonded interface and it causes crack initiation and catastrophic failure. Therefore, it is very impotant that analyze stress intensity factors for interface cracks emanating from circular holes in bonded dissimilar materials. In this paper, stress intensity factors by boundary element method for interface cracks emanating from a circular hole and semicircular hole in bonded dissimilar materials were analyzed, and relations between therir variations and effects were discussed.