HW:No.1 The following data were recorded during the tensile test of a 14 mm-diameter mild steel rod. The measure length was 50 mm. Plot the stress-strain diagram and determine the following mechanical properties: (a) proportional limits; (b) modulus of elasticity; (c) yield point; (d) ultimate strength; and (e) rupture strength. No. Load (N) Elongation (mm) No. Load (N) Elongation (mm) 0.00 0.0 10 46200 1.25 2 6310 0.010 11 52400 2.50 3 12600 0.020 12 58500 4.50 4 18800 0.030 13 65400 7.5 5 25100 0.040 14 68000 12.5 6 31300 0.050 15 67800 15.5 7 37900 0.060 16 65000 20.0 8 40100 0.163 17 61500 Fracture 9 41600 0.433

HW:No.1 The following data were recorded during the tensile test of a 14 mm-diameter mild steel rod. The measure length was 50 mm. Plot the stress-strain diagram and determine the following mechanical properties: (a) proportional limits; (b) modulus of elasticity; (c) yield point; (d) ultimate strength; and (e) rupture strength. No. Load (N) Elongation (mm) No. Load (N) Elongation (mm) 0.00 0.0 10 46200 1.25 2 6310 0.010 11 52400 2.50 3 12600 0.020 12 58500 4.50 4 18800 0.030 13 65400 7.5 5 25100 0.040 14 68000 12.5 6 31300 0.050 15 67800 15.5 7 37900 0.060 16 65000 20.0 8 40100 0.163 17 61500 Fracture 9 41600 0.433

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Calculate the result on the last table using the data given.
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1.5-7 The data shown in the table were obtained from a tensile test of a metal specimen with a rectangular cross section of 0.2 in.² in area and a gage length (the length over which the elongation is measured) of 2.000 inches. a. Generate a table of stress and strain values. b. Plot these values and draw a best-fit line to obtain a stress-strain curve. c. Determine the modulus of elasticity from the slope of the linear portion of the curve. Load (kips) 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 50 6.0 6.5 Elongation × 10³ (in.) 0 0.160 0.352 0.706 1.012 1.434 1.712 1.986 2.286 2.612 2.938 3.274 3.632 3.976 Load (kips) 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13 Elongation × 10³ (in.) 4.386 4.640 4.988 5.432 5.862 6.362 7.304 8.072 9.044 11.310 14.120 20.044 29.106
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