Material Vocabularly 1 Flashcards
1
Q
ELASTIC DEFORMATION
Description?
A
A temporary change in shape when stress is applied
2
Q
PLASTIC DEFORMATION
Description?
A
A permanent change in shape when stress is applied
3
Q
STRONG
Description?
STRENGTH
Description?
Units?
Types?
A
A large stress is needed to cause failure
The maximum stress a material can withstand before failure
Pa
Yielding and breaking/fracture
4
Q
WEAK
Description?
A
The opposite of strong you dumbass
5
Q
TOUGHNESS
Description and units?
Reasoning?
Properties?
A
- Energy to create new surface area (J/m^2)
- Energy absorbed per unit volume (J/m^3)
Energy is absorbed after a material passes its elastic limit and undergoes plastic deformation before breaking
Hard to break, large plastic deformation, resists crack propagation
6
Q
BRITTLE
Description?
A
The material breaks soon after elastic limit
7
Q
HARD
Description?
Units?
A
The material is resistant to debts and scratches
Pa
8
Q
DUCTILE
Description?
A
The material can easily be drawn into a wire
9
Q
MALLEABLE
A
The material can easily be hammered or pressed into a shape
10
Q
STRESS
Description? Formula? Symbol? Unit? Types?
A
The force applied/ the cross-sectional area it is applied to Stress= F/A Sigma (squiggly o thing) Nm^-2 (N/m^2) or Pascal (Pa) Compression, tension, torsion
