Suppose that a wing component on an aircraft is fabri-cated from an aluminum alloy that has a plane-strainfracture toughness of 26.0 MPa Vm (23.7 ksi Vin.).It has been determined that fracture results at astress of 112 MPa (16,240 psi) when the maximuminternal crack length is 8.6 mm (0.34 in.). For thissame component and alloy, compute the stress levelat which fracture will occur for a critical internalcrack length of 6.0 mm (0.24 in.).

GIVEN:fracture toughness k=26MPaσ1=112MPacrack length l1=8.6mm=8.6×10-3ml2=6mm=6×10-3mfactor…

Answered: ed from an aluminum cture toughness of…

ed from an aluminum cture toughness of 26 nas been determineč Ess of 112 MPa (16,2- ernal crack length is ne component and all.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Suppose that a wing component on an aircraft is fabri-
cated from an aluminum alloy that has a plane-strain
fracture toughness of 26.0 MPa Vm (23.7 ksi Vin.).
It has been determined that fracture results at a
stress of 112 MPa (16,240 psi) when the maximum
internal crack length is 8.6 mm (0.34 in.). For this
same component and alloy, compute the stress level
at which fracture will occur for a critical internal
crack length of 6.0 mm (0.24 in.).

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