A tension test was carried out for a specimen having 610 mm in length and an average diameter of 12.80 mm. The test was conducted until the specimen failed. The data record from a tensile test for the specimen is given in Table 1. A 50 mm gauge length was marked on the specimen before load applied. Referring to the data in Table 1; i) Plot a stress-strain diagram by using a scale of 1:0.02 mm/mm for the x-axis and 1:40 MPa for the y-axis. Redraw the elastic region by using a strain scale of 1:0.004 min/mm. ii) Determine the approximate modulus of elasticity, ultimate stress, and the yield strength of this material at 0.20% offset. iii) Calculate the modulus of toughness.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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a) A tension test was carried out for a specimen having 610 mm in length and an average diameter of 12.80 mm. The test was conducted until the specimen failed. The data record from a tensile test for the specimen is given in Table 1. A 50 mm gauge length was marked on the specimen before load applied.
Referring to the data in Table 1;
i) Plot a stress-strain diagram by using a scale of 1:0.02 mm/mm for the x-axis and 1:40 MPa for the y-axis. Redraw the elastic region by using a strain scale of 1:0.004 min/mm.
ii) Determine the approximate modulus of elasticity, ultimate stress, and the yield strength of this material at 0.20% offset.
iii) Calculate the modulus of toughness.
iv) Calculate the final length of the specimen, if the specimen elongated about 26.78%.
v) Calculate the percentage of reduction of area and the final diameter at breakage, if the cross-section area decreases to 105.13 mm2

Table 1: Data for tensile test of specimen
Load (kN)
0.00
Strain (mm/mm)
0.0000
7.60
0.0004
14.90
0.0008
22.20
0.0012
28.50
0.0016
36.80
0.0100
41.00
0.0200
48.30
0.0600
49.70
0.0800
50.40
0.1000
50.70
0.1200
50.40
0.1400
50.00
0.1600
49.70
0.1800
47.90
0.2000
45.10
Fracture
Transcribed Image Text:Table 1: Data for tensile test of specimen Load (kN) 0.00 Strain (mm/mm) 0.0000 7.60 0.0004 14.90 0.0008 22.20 0.0012 28.50 0.0016 36.80 0.0100 41.00 0.0200 48.30 0.0600 49.70 0.0800 50.40 0.1000 50.70 0.1200 50.40 0.1400 50.00 0.1600 49.70 0.1800 47.90 0.2000 45.10 Fracture
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