PSI - Issue 33

Anass Gouya et al. / Procedia Structural Integrity 33 (2021) 215–220 GOUYA Anass / Structural Integrity Procedia 00 (2019) 000–000

217

3

circular profile. The elements used in the mesh are C3D8R for the discretization of the strand wires, with a mesh pitch of about 1.9 mm (Fig. 1a). The contact conditions between the wire surfaces are modeled using surface-to-surface contact with a friction coefficient of 0.2. An axial load is applied to the strand model [1]. The numerical results obtained for strand 23 (steel core strand) are shown in Fig. 1b. The maximum magnitude of the Von Mises stress, occurring in the contact area with the strand core, is about 1983 MPa, as shown in Fig.1b.

Fig. 1: a) Finite Element Mesh, b) Von Mises Stress distribution The numerical analysis of the failure stresses of the core strands were carried out on 27 of strand models with different configurations. The obtained results are presented in Table 1.

Table 1: Finite Element analysis Results of studied strands Strand number Young’s Modulus E [GPa]

Winding angle [Deg]

Diameter D [mm]

Failure stress [MPa]

Strand1 Strand2 Strand3 Strand4 Strand5 Strand6 Strand7 Strand8 Strand9 Strand10 Strand11

70 70 70 70 70 70 70 70 70

0 0 0

1.58

1074 1072 1154 1109 1435 1077 1287 1370 1338 1459 957

1.7 1.9

114.6 114.6 114.6

1.58

1.7 1.9

229.19 229.19 229.19

1.58

1.7 1.9

120 120

0 0

1.58

1.7