2 - Performance Characteristics of Materials

Question 1

What are the 5 types of strenghts

Answer 1

Bending - resist forces
Compresive - reisist crushing/shortening
Tensile - resist stretching
Shear - resist sliding force
Torsional - withstand torsion

Question 2

What is elasticity

Answer 2

ability to be deformed and then return to original shape once deforming force removed

Question 3

What is plasticity

Answer 3

ability to be permanently deformed and retain deformed shape

Question 4

What is malleability

Answer 4

ability to withstand deformation by compression without scratching

Question 5

What is ductility

Answer 5

ability to be drawn under tension without cracking

Question 6

What is hardness

Answer 6

resist abrasive wear such as scratching and surface indents

Question 7

What is toughness

Answer 7

ability to absorb impact force without fracture

Question 8

What is durability

Answer 8

withstand general wear over a period of time

Question 9

What is biodegradability

Answer 9

naturally decompose by actions of bacteria/living organism