Crack Paths 2006

3

(c)

2

m m )

oni t (

startin g p

1

c r a c k

0

0

1

2

3

4

5

6

7

8

9

10

t f r o m

f f s e

-1

V e r t ic a l o

-2

T S Aleft crack

T S Aright crack

F R A N C 2 DlefLt crack

F R A N C 2 DriLght crack

-3

Crack length (mm)

Figure 7. Left and right crack path comparison using thermoelastic stress analysis and

finite element analysis (FRANC2DL).(a) 0 m moffset, (b) 16 m moffset, (c) 64 m m

offset.

205

(a)

15

, M P a m

10

K

-05

0

1

2

3

4

5

6

7

8

9

10

T S Aleft crack m o d eI

T S Aright crack m o d eI

T S Aleft crack m o d eII

T S Aright crack m o d eII

F R A N C 2 lDeftLcrack m o d eI

F R A N C 2 rDigLht crack m o d eI

F R A N C 2 lDeftLcrack m o d eII

F R A N C 2 rDigLht crack m o d eII

-10

Crack length (mm)