Engineering Board Exam Reviewer · Engineering Materials · hard
A steel plate with an edge crack 2 mm deep is loaded in tension at 200 MPa. Using K = 1.12 sqrt(π a), what is the stress intensity factor?
- 15.85 MPa · sqrt(m)
- 561.5 MPa · sqrt(m)
- 1.407 MPa · sqrt(m)
- 17.76 MPa · sqrt(m)
Answer
D. 17.76 MPa · sqrt(m)
Solution
K = 1.12(200)sqrt(π × 0.002) = 17.76 MPa · sqrt(m).
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