Issue 51

G. Ramaglia et alii, Frattura ed Integrità Strutturale, 51 (2020) 288-312; DOI: 10.3221/IGF-ESIS.51.23

ID specimen b [mm] d [mm] h [mm] Type of fiber [-] n l

[-] t eq

[mm] f mc

[MPa] f m0

[MPa] f mc

/f mc0 1.432

[-]

S67

250

250

500

Glass

1

0.48

19.65

13.72

Table 15.B : Geometrical characteristics and experimental results [40].

k eff [-]

f l,(eq.13) [MPa]

f l,eff,(eq.13) [MPa]

(f l,eff

/ f m0

), (eq.13)

f l, (eq.18) [MPa]

f l,eff, (eq.18) [MPa]

(f l,eff

/ f m0

), (eq.18)

ID specimen

[MPa] 0.173

[MPa]

S67 0.173 Table 16.B : Effective confining stress calculated according to Eqns. (13) and (18) for the experimental program, [40]. 0.38 6.16 2.37 6.16 2.37

312