An aircraft component is fabricated from an aluminum alloy that has a plane strain fracture toughness of 37 MPa/m. It has been determined that fracture results at a stress of 215 MPa when the maximum (or critical) internal crack length is 2.10 mm. a) Determine the value of Yo/na for this same component and alloy at a stress level of 279 MPa when the maximum internal crack length is 1.05 mm. MPa m b) Under these circumstances will the component fail?

An aircraft component is fabricated from an aluminum alloy that has a plane strain fracture toughness of 37 MPa/m. It has been determined that fracture results at a stress of 215 MPa when the maximum (or critical) internal crack length is 2.10 mm. a) Determine the value of Yo/na for this same component and alloy at a stress level of 279 MPa when the maximum internal crack length is 1.05 mm. MPa m b) Under these circumstances will the component fail?

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter11: Fracture And Fatigue

Section: Chapter Questions

Problem 11.12P

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