... satisfies the biharmonic equation: .11,0 2 2 22 2 222 rrrrThe boundary conditions for this plane crack problem 22 The boundary conditions for this plane crack ... be bounded. 0ij 2 2 2r2coscos 12 11 BArrxrrr1 25 2sin2sin111 BArApply ... of λ are, 2 )( , ,2, 2 3,1, 2 1,0, 2 1Zorwhere Z is –1, 0, or a positive integer. Taking the most dominant singular term (λ = 1 /2 and thus B1=A1/3)we find that: 29 we find...