a. There is no shear stress, only hydrostatic compressive normal stress in all directions b. At the centre of the contact surface. c At the surface, some small radial distance away from the z-axis. O.At the centre of the sphere. Oe. On the z-axis, some small vertical distance into the sphere. C. QUESTION 17 Which of these alloys would you expect to have a true endurance limit? O a. Titanium. Ob.Copper. c. Magnesium. Od. Aluminum. Oc. QUESTION 18 Which failure theory is most accurate for use with a fully-hardened spring steel component whose elongation at fracture is 1%?

a. There is no shear stress, only hydrostatic compressive normal stress in all directions b. At the centre of the contact surface. c At the surface, some small radial distance away from the z-axis. O.At the centre of the sphere. Oe. On the z-axis, some small vertical distance into the sphere. C. QUESTION 17 Which of these alloys would you expect to have a true endurance limit? O a. Titanium. Ob.Copper. c. Magnesium. Od. Aluminum. Oc. QUESTION 18 Which failure theory is most accurate for use with a fully-hardened spring steel component whose elongation at fracture is 1%?

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter7: Analysis Of Stress And Strain

Section: Chapter Questions

Problem 7.2.26P: -26 A rectangular plate of dimensions 125 mm × 75 mm is subjected to tensile stress sy= 67 kPa and...

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