P =A high strength steel has100 ksi and fracture toughness KICTyield150 ksivin. Based on aparticular non-destructive inspection the smallest flaw size that can be detected is 0.3 in. Assumethe most dangerous crack geometry in the structure is a single edge notch with K₁ = 1.12√√а.The structure is subject to cyclic fatigue loading in which max = 45 ksi and omin = 25 ksi.The fatigue crack growth in this steel can be described by the Paris equation with C =0.66 x 10-8 and n = 2.25. Estimate the fatigue life for this structure.=

Given:To find:Fatigue life of the structure.

A high strength steel has yield = 100 ksi and fracture toughness KIC = 150 ksi√in. Based on a particular non-destructive inspection the smallest flaw size that can be detected is 0.3 in. Assume the most dangerous crack geometry in the structure is a single edge notch with K, = 1.12σγπα. The structure is subject to cyclic fatigue loading in which max = 45 ksi and σmin = 25 ksi. The fatigue crack growth in this steel can be described by the Paris equation with C = 0.66 × 10-8 and n = 2.25. Estimate the fatigue life for this structure.

A high strength steel has yield = 100 ksi and fracture toughness KIC = 150 ksi√in. Based on a particular non-destructive inspection the smallest flaw size that can be detected is 0.3 in. Assume the most dangerous crack geometry in the structure is a single edge notch with K, = 1.12σγπα. The structure is subject to cyclic fatigue loading in which max = 45 ksi and σmin = 25 ksi. The fatigue crack growth in this steel can be described by the Paris equation with C = 0.66 × 10-8 and n = 2.25. Estimate the fatigue life for this structure.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Question

=
A high strength steel has
100 ksi and fracture toughness KIC
Tyield
150 ksivin. Based on a
particular non-destructive inspection the smallest flaw size that can be detected is 0.3 in. Assume
the most dangerous crack geometry in the structure is a single edge notch with K₁ = 1.12√√а.
The structure is subject to cyclic fatigue loading in which max = 45 ksi and omin = 25 ksi.
The fatigue crack growth in this steel can be described by the Paris equation with C =
0.66 x 10-8 and n = 2.25. Estimate the fatigue life for this structure.
=

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