XTRA Student Number Name oc Region Region Region A B Figure

XTRA Student Number: Name: oc Region Region Region A B Figure 5 g) Which of the following is the right naming for all the regions indicated on the stress strain curve shown in Figure 5. [2 Marks] (i) Region A: Elastic Behaviour; Region B: Strain Hardening; Region C: Yielding (i) Region A: Elastic Behaviour; Region B: Yielding; Region C: Necking (ii) Region A: Elastic Behaviour; Region B: Yielding; Region C: Strain Hardening (iv) Region A: Yielding: Region B: Elastic Behaviour; Region C: Strain Hardening h) Which of the following is the right naming for all the stresses indicated on the stress strain curve shown in Figure 5. [2 Marks] (i) . Yield stress; Fracture stress : Ultimate stress (ii) . Prestress stress, 8: Yield stress; Ultimate stress (iii) : Yield stress; 8: Ultimate stress; c: Post-stress (iv) oa: Yield stress; B: Ultimate stress; 0c: Fracture stress CIVE 2200: Solid Mechanics I FINAL EXAM Page 5 of 20

Solution

g) option (3).==>Region A: Elastic behaviour; Region B: Yield behaviour; Region C: Strain hardening.

h) option (1) ==>Yield stress, Fracture stress, Ultimate stress.