An aircraft component is fabricated from an aluminum alloy that has a plane strain fracture toughness of 33 MPa m. It has been determined that fracture results at a stress of 237 MPa when the maximum (or critical) internal crack length is 3.00 mm. a) Determine the value of Yo na for this same component and alloy at a stress level of 355 MPa when the maximum internal crack length is 1.50 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 33 MPa m. It has been determined that fracture results at a stress of 237 MPa when the maximum (or critical) internal crack length is 3.00 mm. a) Determine the value of Yo na for this same component and alloy at a stress level of 355 MPa when the maximum internal crack length is 1.50 mm. MPa /m b) Under these circumstances will the component fail?

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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1 Q 4 N Current Attempt in Progress 30¹ F1 A specimen of a 4340 steel alloy with a plane strain fracture toughness of 54.8 MPa m (50 ksi vin.) is exposed to a stress of 978.0 MPa (141800 psi). Assume that the parameter Y has a value of 1.18. - Your answer is partially correct. @ 2 (a) If the largest surface crack is 0.9 mm (0.03543 in.) long, determine the critical stress o. i 1608.13 (b) Will this specimen experience fracture? W S Yes v eTextbook and Media Hint Save for Later 38 command F2 # 3 E D 80 F3 X C $ 4 R MPa 000 000 F4 F % 5 V F5 T G 6 B MacBook Pro Y H & 44 N U 8 J Attempts: 1 of 5 used en l M 9 K DD F9 0 < H I -O L Submit Answer A F10 P V . t C F11 { command option [ + " = ? |