young's modulus

Question 1

what is young modulus?

Answer 1

is a measure of the ability of a material to withstand changes in length when under tension or compression
- is the ratio of stress to strain for a material obeying Hooke’s law.

Question 2

what is stress?

Answer 2

stress is something applied to a solid by external forces. stress increases with an increase in force

Question 3

what is strain?

Answer 3

strain is the measure of how much an object is stretched or deformed.

Question 4

what is the formula for young modulus?

Answer 4

E= F/A / AL/L

Question 5

how do you find tensile stress?

Answer 5

F/A

Question 6

how do you find tensile strain?

Answer 6

AL/L

Question 7

what is the yield point?

Answer 7

the point at which the material starts to deform plastically. after the yield point is passed, permanent plastic deformation occurs

Question 8

define elastic limit?

Answer 8

the point till which the wire retains its original length after the force is withdrawn.

Question 9

what is elastic deformation?

Answer 9

the temporary change in the length, volume or shaped that is produced by stress

Question 10

what is plastic deformation?

Answer 10

a permanent change in shape of a solid body

Question 11

what is ultimate tensile stress?

Answer 11

is the maximum stress that a material can withstand before it breaks or weakens.

Question 12

what is repeated loading?

cyclic loading

Answer 12

is the application of repeated or fluctuating stress, strain, force or tension on a material that causes degration of the material