1(a)
Draw a schematic representing a dislocation, in 2D.
(b)
Describe what is meant by work-hardening? Explain with anexample.
(c)
Assume you are stretching a bar of metal that undergoes workhardening. What would the Stress vs Strain diagram of such amaterial look like, showing deformation behaviour?
(d)
Define the Following:
(i) What is a Fracture?
(ii) Define the types of Fracture.
(iii) Draw the types of Fractures.
(iv) What is Fracture Toughness?
(v) What are Stress Concentrators?
(e)
State at least two situations in which the possibility offailure is part of the design of the component or Product.
