Issue 39

J. Sobek et alii, Frattura ed Integrità Strutturale, 39 (2017) 129-142; DOI: 10.3221/IGF-ESIS.39.14

g n

 1

1

2

4

7

11

 = 0.5

con 180° (0°)

crack tip

qua 90° (45°)

exp 90° (80°)

Figure 4 : Relative error of principal tensile stress  1

field approximation for chosen variants of nodal selection.

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