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.
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
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