Issue 14

C.M 28 A N Th K K F . Sharanaprabh ALYTICAL E or a sin Cartesian xx   yy   xy   zz    0 zz   e stress inten I p w t   II p w t   u et alii, Frattu STIMATION gular elastic co-ordinate 1 co 2 I K r    1 c 2 II K r    1 s 2 I K r    ( ) xx yy    Pla sity factor fo c o s 1 b b w     s in 1 b b w     ra ed Integrità S OF CRACK field of an i s ( x , y ) shown Figure 1 : s 1 sin 2 2      os 1 si 2     in cos 2 2   2 K 2 I r     ne stress r CTS specim 1 0     1 0     trutturale, 14 (2 INITIATIO nfinite plate in Fig.1 are Crack tip stres 3 sin 2 K     3 n sin 2 2     3 cos 2 K   cos 2 II K   en of interes 0 .2 6 .5 5 b w      0 .23 .67 b w       010) 27-35; DO N ANGLE with a crack given a s [4]. ses expressed sin 2 2 II     sin 2 II K   cos 1 2 II     sin 2    t is given by  2 .6 5 0 .0 w b        1 .40 2 .0 w b       I: 10.3221/IGF-E , the stress in Cartesian co cos cos 2   cos cos 2  sin sin 2   Plane Strain [11].  8 b b b w b          8 b b b w b         SIS.14.03 near the cra -ordinates. 3 2    3 2     3 2      2    2    ck tip expressed in term (1) (2) (3) (4) (5) (6) (7) s of