Issue 33

V. Veselý et alii, Frattura ed Integrità Strutturale, 33 (2015) 120-133; DOI: 10.3221/IGF-ESIS.33.16 133 FEM N = 4 N = 7 N = 11 con. qua . exp. con. qua . exp. con. qua . exp. 90° (10°) 90° (45°) ;90° (80°) 180° (0°) Figure 11 : Contour plots of the approximation of  yy stress in the test specimen with the relative crack length  = 0.75 for all the considered variants of the nodal selection and number of Williams series terms N = 4, 7, 11 compared to the FEM solution.