PSI - Issue 13

Fuminori Yanagimoto et al. / Procedia Structural Integrity 13 (2018) 2095–2100 Author name / Structural Integrity Procedia 00 (2018) 000–000

2099

5

4

8

12

0

20

24

28

16

32

36

40

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Crack tip on upper flange surface

Crack tip on lower flange surface

52 Fig. 4 Crack behavior in Mark C (arrest at 60 μs in web) 56

60

48

0 100 200 300 400 500 600

100 150 200 250 300 350 400

Web Left in flange Right in flange

Crack velocity [ m/s ]

Crack velocity [ m/s ]

20 Web Left in flange Right in flange time [ μs ] 40 60

0 50

40 time [ μs ]

0

80

0

20

60

80

a)

b)

0 100 200 300 400 500 600 Crack velocity [ m/s ]

Web Left in flange Right in flange

40 time [ μs ]

0

20

60

80

c) Fig. 5 Crack velocity history: a) mark A, b) mark B, c) mark C