Q2 (a) Figure 2.1 shows the stress-strain diagram for four types of materials namely material A,B,C and D. i. From the Y

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Q2 A Figure 2 1 Shows The Stress Strain Diagram For Four Types Of Materials Namely Material A B C And D I From The Y 1 (62.48 KiB) Viewed 40 times

Q2 (a) Figure 2.1 shows the stress-strain diagram for four types of materials namely material A,B,C and D. i. From the Young's Modulus of each material, conclude their elasticity behavior. (4 marks) 11. Analyze which type of materials are ductile and explain the reasons. (4 marks) STRESS ( (b) STRAIN Figure 2.1 The stress-strain curve for four materials. In construction of a bridge, a hollow steel column is exposed to a compressive load P as shown in Figure 2.2. The Young's Modulus of steel is 200 GPa. The length of the column is 3.43 m with 15.85 cm inner diameter. The load P is identified as 70 N and the maximum compressive stress should be 50 MPa. i. The shortening allowed in the column is 0.7 mm. Estimate the thickness of the column. (8 marks) ii. If a safety factor of 4 is desired, hypothesize the allowable load in the column. (4 mark) Figure 2.2. A hollow steel column.