A new processing method is proposed for producing Alumina ceramic heads for total hip replacement. The new method has been shown to reduce the surface critical flaw size from 4 um to 2.5 µm. If the alumina has a plane strain fracture toughness of 5.4 MPa.m0.5 and currently is found to fail at a stress of 200 MPa what will the difference in failure stress be with the reduction in flaw size? (This question has only one correct answer) Select one: а. 253 MPa O b. A decrease in failure stress of 42 MPa С. An increase in failure stress of 53 MPa d. 158 MPa

A new processing method is proposed for producing Alumina ceramic heads for total hip replacement. The new method has been shown to reduce the surface critical flaw size from 4 um to 2.5 µm. If the alumina has a plane strain fracture toughness of 5.4 MPa.m0.5 and currently is found to fail at a stress of 200 MPa what will the difference in failure stress be with the reduction in flaw size? (This question has only one correct answer) Select one: а. 253 MPa O b. A decrease in failure stress of 42 MPa С. An increase in failure stress of 53 MPa d. 158 MPa

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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