The R-curve for a certain material can be expressed as: K R =K + 3(a – a,)º E with R in MN/m, a and ao in meters, K« = 150 MPavm and E = 210 000 MPa. A wide centre cracked plate of this material has a crack length 2ao = 60 mm. Show that this plate allows a maximum stable crack growth of 3.1 mm at both tips. а)

The R-curve for a certain material can be expressed as: K R =K + 3(a – a,)º E with R in MN/m, a and ao in meters, K« = 150 MPavm and E = 210 000 MPa. A wide centre cracked plate of this material has a crack length 2ao = 60 mm. Show that this plate allows a maximum stable crack growth of 3.1 mm at both tips. а)

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter11: Fracture And Fatigue

Section: Chapter Questions

Problem 11.10P

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