Work Package 5 Flashcards
1
Q
what is the calculation for hooke’s law? (stiffness of materials) (given)
A
force = spring constant x extension
2
Q
what is stiffness measured in?
A
newton/ metres
3
Q
what is the calculation for stress? what is the unit of measurement? (given)
A
load/ area
unit: N/m^2 or Pa(Pascal)
4
Q
what is the calculation for strain? what is it often shown as? (given)
A
extension/ original length
shown often as a percentage
5
Q
what is Youngs modulus?
A
measure of a materials stiffness. it is the gradient of the linear part of the curve.
6
Q
what is Youngs modulus often measured in?
A
pascal or mega pascal (10^6) or giga pascal (10^9)
7
Q
what is the calculation for Youngs Modulus? (given)
A
“E” = stress/ strain
