PSI - Issue 44

Federico Gusella et al. / Procedia Structural Integrity 44 (2023) 790–797 F. Gusella et al./ Structural Integrity Procedia 00 (2022) 000 – 000

793

4

Table 3. Classification of the fuse cross-section

Test

Cross-section UPN 50x38

f yk [N/mm

2 ]

Compression part

Class(*)

ε

c/t 4.4

Internal compression part

1 1 1 1 1 1 1 1 1

UPN 50

275

0.92

3.71 6.36 3.87

Outstand flanges

Internal compression part

UPN 65

UPN 65x42

275

0.92

Outstand flanges

11

Internal compression part

UPN 100

UPN 100x50

275

0.92

4.18

Outstand flanges

12

Lateral Internal compression part Flange Internal compression part Lateral Internal compression part Flange Internal compression part

RHS 80

80x40x5

235

1

4

33.5

RHS 150

150x100x4

235

1

21 1 (*) for internal compression part: 1st class, c/t≤72ε; 2nd class, 72ε< c/t≤83ε and 3 rd class, 83ε