Mary wants to design a physical object and is on the step of material selection. Which charts will help her for material selection step? A line
B. pie
C. bar
D. Ashby

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

What precautions should you take to prevent injuries when dealing with heavy loads?

On a average work day more than work place firs are reorted