Issue 56

A. Regad et alii, Frattura ed Integrità Strutturale, 56 (2021) 115-122; DOI: 10.3221/IGF-ESIS.56.09

us a quarter-tube with a quarter-defect [21] (see Fig. 2).

Figure 1: Geometry of the defect

a(mm)

a/e

c(mm)

2 4 6 8

0 .167 0 .333

25

34.87 42.14

0.5

0.667 0.833

48

10

52.91

Table 1: Geometric characteristics of the surface defects

Figure 2: Pipe with elliptical defect

Figure 3: HDPE 100 tube meshing.

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