Issue 41

F. Berto, Frattura ed Integrità Strutturale, 41 (2017) 475-483; DOI: 10.3221/IGF-ESIS.41.59 479 t/a s = 0 mm s = 0.25 mm s = 1 mm s = 2 mm 0.25 0.538 0.498 0.497 0.497 0.5 0.527 0.498 0.497 0.497 0.75 0.523 0.498 0.497 0.497 1 0.520 0.498 0.497 0.497 1.25 0.517 0.498 0.497 0.497 1.5 0.515 0.498 0.497 0.497 1.75 0.513 0.498 0.497 0.497 2. 0.512 0.498 0.497 0.497 2.25 0.510 0.498 0.497 0.497 2.5 0.510 0.498 0.497 0.497 2.75 0.509 0.498 0.497 0.497 3 0.508 0.498 0.497 0.497 Table 1 : Values of λ for τ xy , s is the distance from surface in the z direction. t/a s = 0 mm s = 0.25 mm s = 1 mm s = 2 mm 0.25 - - 0.507 0.504 0.5 - - 0.506 0.503 0.75 - - 0.506 0.502 1 - - 0.506 0.502 1.25 - - 0.506 0.502 1.5 - - 0.506 0.502 1.75 - - 0.506 0.502 2 - - 0.506 0.502 2.25 - - 0.506 0.502 2.5 - - 0.505 0.502 2.75 - - 0.506 0.502 3 - - 0.506 0.502 Table 2 : Values of λ for τ yz , s is the distance from surface in the z direction. Figure 4 : Stresses τ yz and τ xy on crack surface at s = 0 mm from plate surface, t/a =1.  xy  yz 