Youngs Modulus Flashcards
What is tensile stress
T/A
The tension per unit cross-sectional area
What is tensile strain
e/L
The extension per unit length
What Is unit for tensile stress
Pascal
What is unit for tensile strain
No unit as it is ratio
What is unit for Young’s modulus
Pascal
What is pascal equal to
Nm^-2
What is the elastic limit
The point beyond which the wire is permanently stretched and suffers plastic deformation
What is the UTS
Ultimate tensile stress
It’s the maximum point of tensile stress
Also known as breaking stress
What happens beyond UTS
Wire loses its strength, extends and becomes narrower at its weakest point
How can stiffness of materials be compared
The young modulus of the materials
What is the strength of a material
UTS
What is a brittle material
A material that snaps without any noticeable yield
What is a ductile material
A material that can be drawn into a wire
