... B1=A1 /3) we find that:29we find that: 25212 3 2 3 cos 3 12cosrrAr ~2/10211rrrAijijIijij The admissible ... .~2jxixIijIijrK 30 The first term is the leading singular term for linear elastic mode I crack problems. is a function of θ alone (no rdependence). The second term, generally referred to as the ... values of λ are,2)( ,,2,2 3 ,1,21,0,21Zorwhere 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:29we find...