Issue 66

M. Zaglal et alii, Frattura ed Integrità Strutturale, 66 (2023) 1-16; DOI: 10.3221/IGF-ESIS.66.01

E XPERIMENTAL RESULTS AND DISCUSSION

I

n this section, the results obtained in the experimental study will be discussed for each specimen. The results include mode failure, cracking load (Pcr ), maximum load (Pm ), and their subsequent displacements (  cr ), (  m ) respectively. The summary of the results is found in Tab. 5.

End of the first line elastic state

Maximum

Mode of failure

Specimens

 cr (mm)

 m (mm)

Load (kN)

Load (kN)

RMBA RMBB RMBC

7

0.6

25

11.8 6.14 15.3

Shear Shear

8.8

0.93

25.7 30.5

7

0.5

Flexure

Table 5: Results of testes beams.

600

35

RMBA RMBB RMBC

RMBA RMBB RMBC

30

500

25

400

22 kN

20

300

15

Load, kN

200

10

Energy, kN.mm

100

5

0

0 5 101520253035 0

0

8 16 24 32 40

Deflection, mm

Deflection, mm

a)

b)

10

8

6

4

Load, kN

2

RMBA RMBB RMBC

0 0.4 0.8 1.2 1.6 2 0

Deflection, mm

c) Figure 5: Experimental Results; a) Load vs displacement curves, b) Strain energy, and c) Zoom on the linear part of the curve.

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