Project Summary: 1. How does temperature influence the plasticity and elasticity of materials? 2. What does it mean by ideal materials? and which real material is close to the definition of ideal materials? 3. What are the imperfections found in solid materials? Describe them. 4. What are the failures in metals? Describe them. 5. Why do we need to avoid sharp corners when designing or manufacturing parts? 6. What is the difference between ductile and brittle fracture? Which is more favorable and how can we improve the fracture characteristics?