Crack Paths 2009

a2 and K,, I ]62(X)1'1’1(212,X)(1X

(MN/mm)

(3)

0

(a)

Single Edge Cracks

K I jo(x) m(a,x)dx

‘ I r - 4 % , ;

0

/

I

Go

i I I

61X) at uniform

(b)

TwoEdge Cracks

a1 Ka1 I jcs1(x)m(a1,x)dx /

9"

m(a1,x)

E

a2

K,12 I jc2(x)m(a2,x)dx

0

/ \

Fig. 4. (a) SIF weight function equation used for a single edge crack. (b) Modifications

madeto predict SIF weight function of two edge cracks.

925