deformation of solid Flashcards
(10 cards)
1
Q
Hooke’s law define
A
the extension of spring is directly proportional to the load under limit of proportionality
2
Q
equation Hooke’s law
A
F = kx
3
Q
define stress σ
A
Force/area, normal force per unit area
4
Q
define strain ε
A
extension/ length, extension per unit length
5
Q
define young modulus
A
stress/strain
6
Q
equation for Ep (spring)
A
Ep = 1/2 * F * x = 1/2 * k * x^2
7
Q
what is area under force and extension graph means
A
work done
8
Q
elastic deformation
A
when load is removed the spring returns to original length
8
Q
plastic deformation
A
spring is permanently deformed
9
Q
elastic limit
A
the limit at which elastic deformation applies
