23) A steel rod with a cross-sectional area of 150 mm² is stretched between two fixed points. The tensile force in the rod at 20°C is 5340 N. (a) What will be the stress at -18°C? (b) At what temperature will the stress be zero? Use ß=11.7x10-6°C. 5340 N- 6 +₁ ar 81-190 5340 N

23) A steel rod with a cross-sectional area of 150 mm² is stretched between two fixed points. The tensile force in the rod at 20°C is 5340 N. (a) What will be the stress at -18°C? (b) At what temperature will the stress be zero? Use ß=11.7x10-6°C. 5340 N- 6 +₁ ar 81-190 5340 N

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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-26 A rectangular plate of dimensions 125 mm × 75 mm is subjected to tensile stress sy= 67 kPa and compressive stress a. If it is known that the normal stress along the diagonal t—t is ??t= -6.57 kPa, find stress ??y on element A. a
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