Issue 29

R. Dimitri et alii, Frattura ed Integrità Strutturale, 29 (2014) 266-283; DOI: 10.3221/IGF-ESIS.29.23

(a) Normal direction

(b) Tangential direction

(c) Normal direction

(d) Tangential direction

Figure 6 : Coupling effect on stresses for CZM 4, PL criterion:. g Nu /g Nmax

=2exp(1), g Tu

/g Tmax

=2√exp(1) for pure modes I and II (a) , (b) ;

=√exp(1) for pure modes I and II (c) , (d) .  =0.5.

/g Nmax

=exp(1), g Tu

/g Tmax

g Nu

(a) Normal direction

(b) Tangential direction

(c) Normal direction

(d) Tangential direction

Figure 7 : Coupling effect on stresses for CZM 4, BK criterion:. g Nu /g Nmax

=2exp(1), g Tu

/g Tmax

=2√exp(1) for pure modes I and II (a) , (b) ;

=√exp(1) for pure modes I and II (c) , (d) .  =1.75.

g Nu

/g Nmax

=exp(1), g Tu

/g Tmax

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