bar is 250 mm long and 10 mm square over part of its length, the remainder being circular with a diameter of 25 mm. A gradually applied tensile load P kN induces a maximum stress in the bar of 200 MPa. The total strain energy in the bar when this stress of 200 MPa is acting is 1,3 J. Calculate (a) the load P; (b) the total extension of the bar; (c) the length of the square portion of the bar; (d) the suddenly applied load that will induce the same amount of energy; and (e) the load that falls from a height of 8 mm and induces 1,3 J in the bar. (Take E as 200 GPa.)

bar is 250 mm long and 10 mm square over part of its length, the remainder being circular with a diameter of 25 mm. A gradually applied tensile load P kN induces a maximum stress in the bar of 200 MPa. The total strain energy in the bar when this stress of 200 MPa is acting is 1,3 J. Calculate (a) the load P; (b) the total extension of the bar; (c) the length of the square portion of the bar; (d) the suddenly applied load that will induce the same amount of energy; and (e) the load that falls from a height of 8 mm and induces 1,3 J in the bar. (Take E as 200 GPa.)

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter8: Applications Of Plane Stress (pressure Vessels, Beams, And Combined Loadings)

Section: Chapter Questions

Problem 8.2.8P: A spherical steel pressure vessel (diameter 500 mm, thickness 10 mm) is coated with brittle lacquer...

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