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The notched bar shown in the following figure is subjected to an axial load P that varies between -50 kN and 20 kN. The fatigue stress concentration factor at the notch is ke = kfm = 2.1. The bar is made of steel (Sut = 324 MPa). Its corrected endurance limit is Se = 162 MPa. Determine the infinite lifetime fatigue factor of safety (using Case 3 safety factor calculation). r= 3 mm 36 mm 30 mm 30 mm P. r= 3 mm Select one: O a. Nf = 4.63 O b. Nf = 3.47 O c. N = 2.52 O d. Nf = 1.63

The notched bar shown in the following figure is subjected to an axial load P that varies between -50 kN and 20 kN. The fatigue stress concentration factor at the notch is ke = kfm = 2.1. The bar is made of steel (Sut = 324 MPa). Its corrected endurance limit is Se = 162 MPa. Determine the infinite lifetime fatigue factor of safety (using Case 3 safety factor calculation). r= 3 mm 36 mm 30 mm 30 mm P. r= 3 mm Select one: O a. Nf = 4.63 O b. Nf = 3.47 O c. N = 2.52 O d. Nf = 1.63

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
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The notched bar shown in the following figure is subjected to an axial load P that varies between -50 kN and 20 kN. The fatigue stress concentration factor at the notch is ke = kfm = 2.1. The bar is made of steel (Sut = 324 MPa). Its corrected endurance limit is Se = 162 MPa. Determine the infinite lifetime fatigue factor of safety (using Case 3 safety factor calculation). r= 3 mm 36 mm 30 mm 30 mm P. r= 3 mm Select one: O a. Nf = 4.63 O b. Nf = 3.47 O c. N = 2.52 O d. Nf = 1.63
The notched bar shown in the following figure is subjected to an axial load P that varies between -50 kN and 20 kN. The fatigue stress concentration factor at the notch is kf = kfm = 2.1. The bar is made of steel (Sut = 324 MPa). Its corrected endurance limit is Se = 162 MPa. Determine the infinite lifetime fatigue factor of safety (using Case 3 safety factor calculation). r= 3 mm 36 mm 30 mm 30 mm P. r= 3 mm Select one: O a. Nf = 4.63 O b. N = 3.47 O c. N = 2.52 O d. Nf = 1.63
Transcribed Image Text:The notched bar shown in the following figure is subjected to an axial load P that varies between -50 kN and 20 kN. The fatigue stress concentration factor at the notch is kf = kfm = 2.1. The bar is made of steel (Sut = 324 MPa). Its corrected endurance limit is Se = 162 MPa. Determine the infinite lifetime fatigue factor of safety (using Case 3 safety factor calculation). r= 3 mm 36 mm 30 mm 30 mm P. r= 3 mm Select one: O a. Nf = 4.63 O b. N = 3.47 O c. N = 2.52 O d. Nf = 1.63
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