The following information is obtained in the compression test on limestone as the sectional area of the sample is 50 mm² and the length 1000 mm, draw the stress- strain curve and then determine the value of proportional limit, yield stress and ultimate strength, failure stress, and modulus of elasticity. Load (KN) Extension (mm) Load (KN) Extension (mm) Compressive Stress, o (MPa) 50 5 238 45 100 10 250 50 150 15 275 60 200 20 295 80 220 25 300 100 Axial Strain, & (%) 225 30 290 120 231 33 275 136 232 36 240 150 233 40 225 160

The following information is obtained in the compression test on limestone as the sectional area of the sample is 50 mm² and the length 1000 mm, draw the stress- strain curve and then determine the value of proportional limit, yield stress and ultimate strength, failure stress, and modulus of elasticity. Load (KN) Extension (mm) Load (KN) Extension (mm) Compressive Stress, o (MPa) 50 5 238 45 100 10 250 50 150 15 275 60 200 20 295 80 220 25 300 100 Axial Strain, & (%) 225 30 290 120 231 33 275 136 232 36 240 150 233 40 225 160

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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Concept explainers

Properties of materials

A property of a material describes its characteristics and distinguishes it from the others. The material properties are described it in terms of its hardness, color, appearances, and so on. The material properties generally depend on the type of material, or whether it is a metal or an alloy. There are different kinds of material properties such as mechanical properties, thermal properties, physical properties, and chemical properties. Chemical properties describe the material in terms of a chemical change. The mechanical properties come into existence when the material is acted upon by an external load. Thermal properties are associated with the temperature of the material and specific heat.

Question

The following information is obtained in the compression test on limestone as the
sectional area of the sample is 50 mm² and the length 1000 mm, draw the stress-
strain curve and then determine the value of proportional limit, yield stress and
ultimate strength, failure stress, and modulus of elasticity.
Load (KN)
Extension (mm
Load (KN)
Extension (mm)
Compressive Stress, o (MPa)
50
5
238
45
100
10
250
50
150
15
275
60
200
20
295
80
220
25
300
100
Axial Strain, & (%)
225
30
290
120
231
33
275
136
232
36
240
150
233
40
225
160

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