Example (1): A specimen of steel bar 25mm in diameter and 200mm long (gauge Length) has an extension of 0.16mm at a load of 80kN. Elastic limit load is 160kN and the maximum load 180KN. The breaking load is 150kN. Total extension is 56mm and the diameter at fracture is 18mm. Find: (i) Elastic limit stress (ii) Ultimate stress (ii true stress at failure (iv) Nominal failure stress (v) Young's modulus of the material (vi) % elongation (vii) % reduction in c/s area.

Example (1): A specimen of steel bar 25mm in diameter and 200mm long (gauge Length) has an extension of 0.16mm at a load of 80kN. Elastic limit load is 160kN and the maximum load 180KN. The breaking load is 150kN. Total extension is 56mm and the diameter at fracture is 18mm. Find: (i) Elastic limit stress (ii) Ultimate stress (ii true stress at failure (iv) Nominal failure stress (v) Young's modulus of the material (vi) % elongation (vii) % reduction in c/s area.

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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