PSI - Issue 78

Chiara Miglietta et al. / Procedia Structural Integrity 78 (2026) 309–316

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Table 1. Mechanical properties of specimens.

Steel grade

Yield strength (N/mm 2 )

Shell plate

S235 J0 P355N

235 355

Nozzle

The tests were carried out using a universal testing machine and a specific setup configuration was designed for each loading direction. Figure 1 reports the geometrical characteristics of each specimen, while Table 2 reports the complete test matrix.

Fig. 1. Characteristics of specimens: (a) S1; (b) S2; (c) S3.

Table 2. Test matrix.

Test ID T1_M_1 T1_C_1 T1_C_2 T2_M_1

Specimen

Test protocol

Loading direction

S1 S1 S1 S2

Monotonic

Axial Axial Axial

Cyclic Cyclic

Monotonic

Transverse