A steel bar of 22 mm diameter and 8 em gage length was axially loaded in tension and the following load deformation diagram was obtained. Determine: a) The yield strength by 0.2% off-set method. b) Modulus of elasticity by initial tangent method. c) Modulus of elasticity by tangent method at 2/3 of the yield strength. d) Modulus of elasticity by secant method at 70% of ultimate strength. e) Strain in fracture. Answer: a) 6576.7 kgf/em² b) 2.3x10° kgf/em² c) 1.11x10° kgf/em? d)1.49 kgf/em² e)1.6%

A steel bar of 22 mm diameter and 8 em gage length was axially loaded in tension and the following load deformation diagram was obtained. Determine: a) The yield strength by 0.2% off-set method. b) Modulus of elasticity by initial tangent method. c) Modulus of elasticity by tangent method at 2/3 of the yield strength. d) Modulus of elasticity by secant method at 70% of ultimate strength. e) Strain in fracture. Answer: a) 6576.7 kgf/em² b) 2.3x10° kgf/em² c) 1.11x10° kgf/em? d)1.49 kgf/em² e)1.6%

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 1.5.6P: The data in Table 1.5.3 were obtained from a tensile test of a metal specimen with a rectangular...

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Question

A steel bar of 22 mm diameter and 8 cm gage length was axially loaded in
tension and the following load deformation diagram was obtained. Determine:
a) The yield strength by 0.2% off-set method.
b) Modulus of elasticity by initial tangent method.
c) Modulus of elasticity by tangent method at 2/3 of the yield strength.
d) Modulus of elasticity by secant method at 70% of ultimate strength.
e) Strain in fracture.
Answer: a) 6576.7 kgf cm² b) 2.3x10° kgf/cm² e) 1.11x10° kgf/cm?
d)1.49 kgf/cm² e)1.6%
Bon)
30
25
20
15
10
DL (om
a018
0.032
0.040
0.004
0.000
O.112
0.120

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A steel bar of 22 mm diameter and 8 cm gage length was axially loaded in tension and the following load deformation diagram was obtained. Determine:

a) The yield strength by 0.2% off-set method.

b) Modulus of elasticity by initial tangent method.

c) Modulus of elasticity by tangent method at 2/3 of the yield strength.

d) Modulus of elasticity by secant method at 70% of ultimate strength.

e) Strain in fracture.

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