Am. Korsunsky et Da. Hills, THE SOLUTION OF CRACK PROBLEMS BY USING DISTRIBUTED STRAIN NUCLEI, Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science, 210(1), 1996, pp. 23-31
Crack problems may be solved by first establishing the stress field in
the crack's absence and distributing strain nuclei along the line of
the crack in order to render its faces traction-free. The relationship
between the different possible forms of nucleus and the kinds of sing
ular integral equation to which they lead are explored. The merits of
each are then highlighted.