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The sketch below shows a material with a crack of length 2a, and a nominal stress of so. You are informed that the stress at the tip is 8 s0. The fracture stress of the material is 12 s0. 1) what is the radius of curvature of the crack tip? 2) if the radius of curvature is reduced further by a factor of 2, will the local tip stress now exceed the fracture stress? SO Crack tip 2a Select one: O a. O b. O c. O d. O e. O f. 1): a/8 2) yes 1): a/42) yes 1): a/16 2) no 1): a/42) no 1): a/16 2) yes 1): a/82) no

The sketch below shows a material with a crack of length 2a, and a nominal stress of so. You are informed that the stress at the tip is 8 s0. The fracture stress of the material is 12 s0. 1) what is the radius of curvature of the crack tip? 2) if the radius of curvature is reduced further by a factor of 2, will the local tip stress now exceed the fracture stress? SO Crack tip 2a Select one: O a. O b. O c. O d. O e. O f. 1): a/8 2) yes 1): a/42) yes 1): a/16 2) no 1): a/42) no 1): a/16 2) yes 1): a/82) no

Elements Of Electromagnetics
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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The sketch below shows a material with a crack of length 2a, and a nominal stress of s0. You are informed that the stress at the tip is 8 s0. The fracture stress of the material is 12 s0. 1) what is the radius of curvature of the crack tip? 2) if the radius of curvature is reduced further by a factor of 2, will the local tip stress now exceed the fracture stress?

The sketch below shows a material with a crack of length 2a, and a nominal stress of so. You are informed that the stress at the tip is 8 s0. The fracture stress of the material is 12 s0. 1) what is the radius of curvature of the crack tip? 2) if the radius of curvature is reduced further by a factor of 2, will the local tip stress now exceed the fracture stress? SO Crack tip 2a Select one: O a. O b. O c. O d. O e. O f. 1): a/8 2) yes 1): a/42) yes 1): a/16 2) no 1): a/42) no 1): a/16 2) yes 1): a/82) no
Transcribed Image Text:The sketch below shows a material with a crack of length 2a, and a nominal stress of so. You are informed that the stress at the tip is 8 s0. The fracture stress of the material is 12 s0. 1) what is the radius of curvature of the crack tip? 2) if the radius of curvature is reduced further by a factor of 2, will the local tip stress now exceed the fracture stress? SO Crack tip 2a Select one: O a. O b. O c. O d. O e. O f. 1): a/8 2) yes 1): a/42) yes 1): a/16 2) no 1): a/42) no 1): a/16 2) yes 1): a/82) no
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