Issue 14

M.N 8 wh   u,v   z A, Cas exa K S , fou It i pla . James et alii,  2 u    z    Az    ere:    , z z  B, C, D, E , F ting the CJP mple, using K R and the T nd as compo Figure 1 : full-fiel s not yet clea sticity-induce l l l I r S r R r X y K K K T T        Frattura ed Inte  iv       2 B E z   1/2 1/2 Dz ln  = s = f = h = a = c = u model in th digital image -stress as fo nents T x in x Displacement d fitting betwe a crack 29.3 r whether th d growth rat   0 0 0 im 2 im 2 im 2 r r r C F                     grità Strutturale   2 2 B E z  1/2 1/2 Ez ln   1/2 2 z Dz   hear modulu unction of Po orizontal and uxiliary funct omplex coor nknown coe ese terms allo correlation t llows (note t -direction an field around a en model and mm long und e CJP mode e perturbatio   1 2 3 2 2 y xy x Er l          , 14 (2010) 5-1 1 1 2 2 4 Ez   4 C F z     2 C F z     s, MPa isson’s ratio vertical disp ions in Musk dinate in the fficients and ws direct co echniques (F hat when usi d T y in y-dire crack tip mea experimental er a load of 12 l, based on t ns, or lead to       2 3 n r A B D E      6; DOI: 10.3221/ 1 2 2 C Ez lnz   ν lacements helishvili‘s m plane z=x+iy D+E = 0 mparison wi ig. 1) . Expr ng displacem ction): sured using D data. A 2 mm 0 N. The mea he plastic inc a reconcilia  3 2 A B    IGF-ESIS.14.01 4 F z     odel th full field c essions can b ent data rath IC techniques thick alumini surement regi lusion conce tion of confl  8 E rack tip disp e directly ob er than stres . The pattern um specimen i on is 17.7 mm pt, will prov icting views lacement fiel tained from s data, the T of points is us s used which c by 13.2 mm. ide a means of plasticity-i (5) ds measured, Eq. 5 g iving -stress has to ed for the ontains (6) of characteri nduced crack for K F , be sing tip