Issue 66

Ch. F. Markides et alii, Frattura ed Integrità Strutturale, 66 (2023) 233-260; DOI: 10.3221/IGF-ESIS.66.15

0.8

y

y 

x 

yy,in xy,in 0     

yy 

 

0.0

H



yy 

xy

xy 

30 

xx 

x

O

-0.8 -1.0

F

1MPa

  

xx,in 

Absence of friction on the crack

xx 

Stresses along HF (absence of friction on the crack) [MPa]

-1.6

0.00 0.02 0.04 0.06 0.08 0.10

(a)

H → F [m]

0.8

y

y 

x 

yy 

yy,in xy,in      

0

 

0.0

H



yy 

xy

xy 

30 

xx 

x

O

-0.8 -1.0

F

1MPa

  

xx,in 

xx 

Pr esence of friction on the crack

-1.6 Stresses along HF (presence of friction on the crack) [MPa]

0.00 0.02 0.04 0.06 0.08 0.10

(b)

H → F [m]

Figure 12: Stresses along HF for intact and cracked plates in case of (a) absence and (b) presence of friction along the crack lips.

0.4

y

xy 

y 

x 

0.0

 

yy,in xy,in 0      

yy  xy 

H

-0.4

30 

yy 

xx 

xx,in 

J

-1.2 - 1.0 -0.8

x

O

1MPa

  

xx 

Absence of friction on the crack

Stresses along JH (absence of friction on the crack) [MPa]

-1.6

0.00 0.02 0.04 0.06 0.08 0.10

(a)

J → H [m]

0.4

y

xy 

y 

x 

0.0

 

yy  xy 

yy,in xy,in 0      

H

yy 

30 

xx 

-0.4

J

xx,in 

xx 

x

O

-0.8 -1.0

1MPa

  

Pr esence of friction on the crack

-1.2 Stresses along JH (presence of friction on the crack) [MPa]

0.00 0.02 0.04 0.06 0.08 0.10

(b)

J → H [m]

Figure 13: Stresses along JH for intact and cracked plates in case of (a) absence and (b) presence of friction along the crack lips.

249