Issue 39

J. Sobek et alii, Frattura ed Integrità Strutturale, 39 (2017) 129-142; DOI: 10.3221/IGF-ESIS.39.14 134  1 g n  = 0.5 1 2 4 7 11 con 180° (0°) qua 90° (45°) exp 90° (80°) Figure 4 : Relative error of principal tensile stress  1 field approximation for chosen variants of nodal selection. crack tip