In this study, interaction between a main crack and a surrounding layer of cracks is considered. Stress Intensity Factors during these interactions are obtained using Dimensional analysis (DA) based on the J-integral method. Amplification and shielding effects on the resulting stress field are shown. Besides, orientations as well as positions of cracks with respect to the main crack are considered as crucial parameters to quantify these effects. A series of illustrated examples is given and obtained results are compared with those of other researchers.
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