Issue 59

N. Kouider et alii, Frattura ed Integrità Strutturale, 59 (2022) 153-171; DOI: 10.3221/IGF-ESIS.59.12

Figure 18: Failure mode (Mises stress state) of beam with corrugated web: beam with triangular web.

Normal web

Trapezoidal web

Triangular web

10 11

0 1 2 3 4 5 6 7 8 9

Load (kN)

0 100 200 300 400 500 600 700 800 900 1000 1100 1200

Vertical deflection Uy ( mm)

Figure 19: Comparative state (load-deflection Uy) of the studied beams.

Vertical deflection y U (mm)

Stress

Horizontal deflection x U (mm)

Moment analytical M (kN.m)

Element

Failure mode

 yy . (MPa) 207.85 175.43 266.57

Local and lateral torsional buckling

Beam with normal web

3.81

105.54

49.28

Beam with Trapezoidal web Beam with Triangular web

3.02 5.00

86.78 67.67

39.69 64.23

Local buckling

Lateral torsional buckling

Table 3: Numerical results for flexural capacity.

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