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A tensile test was conducted on reinforcement steel bar having a diameter of 10 mm to record the stress and strain data as presented in Table 1. A 50 mm gauge length was marked on the specimen before the load applied.

A tensile test was conducted on reinforcement steel bar having a diameter of 10 mm to record the stress and strain data as presented in Table 1. A 50 mm gauge length was marked on the specimen before the load applied.

Steel Design (Activate Learning with these NEW titles from Engineering!)
Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN:9781337094740
Author:Segui, William T.
Publisher:Segui, William T.
Chapter1: Introduction
Section: Chapter Questions
Problem 1.5.3P: A tensile test was performed on a metal specimen having a circular cross section with a diameter 0....
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(b) A tensile test was conducted on reinforcement steel bar having a diameter of 10 mm to record the stress and strain data as presented in Table 1. A 50 mm gauge length was marked on the specimen before the load applied. Table 1 No. Stress Strain No. Stress Strain (MPa) (mm/mm) (MPa) (mm/mm) 1. 0.00 0.0000 8. 357.78 0.0336 118.41 0.0010 9. 361.60 0.0400 3. 189.71 0.0040 10. 364.15 0.0466 4. 225.36 0.0065 11. 367.97 0.0536 5. 285.21 0.0135 12. 361.60 0.0600 6. 320.86 0.0200 13. 350.14 0.0666 7. 346.32 0.0266 14. 332.32 0.0736 Note: All the answers should be labelled and shown in the graph paper. i) Construct the stress versus strain curve using the data in Table 1. Use a scale 10 mm : 25 MPa for y-axis and 10 mm : 0.025 mm/mm for x-axis. ii) Determine the ultimate stress and fracture stress by using the answer in (i). ii) Using the same plotted graph in answer (i), plot the elastic region by using a scale 10 mm : 0.0005 mm. Calculate the modulus of elasticity, modulus of resilience and proof stress at 0.2% offset by using the answer in (ii).
Transcribed Image Text:(b) A tensile test was conducted on reinforcement steel bar having a diameter of 10 mm to record the stress and strain data as presented in Table 1. A 50 mm gauge length was marked on the specimen before the load applied. Table 1 No. Stress Strain No. Stress Strain (MPa) (mm/mm) (MPa) (mm/mm) 1. 0.00 0.0000 8. 357.78 0.0336 118.41 0.0010 9. 361.60 0.0400 3. 189.71 0.0040 10. 364.15 0.0466 4. 225.36 0.0065 11. 367.97 0.0536 5. 285.21 0.0135 12. 361.60 0.0600 6. 320.86 0.0200 13. 350.14 0.0666 7. 346.32 0.0266 14. 332.32 0.0736 Note: All the answers should be labelled and shown in the graph paper. i) Construct the stress versus strain curve using the data in Table 1. Use a scale 10 mm : 25 MPa for y-axis and 10 mm : 0.025 mm/mm for x-axis. ii) Determine the ultimate stress and fracture stress by using the answer in (i). ii) Using the same plotted graph in answer (i), plot the elastic region by using a scale 10 mm : 0.0005 mm. Calculate the modulus of elasticity, modulus of resilience and proof stress at 0.2% offset by using the answer in (ii).
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