• Register
Welcome to The Study Base, where you can ask questions and receive answers from other members of the community.
Please do not use any profane language because if you do, the BAN HAMMER will be struck upon you. Thank you

What are the series of equations for working out the 'Young's Modulus' of a material?

0 votes
There are two different things you need to do to get the Young's Modulus.
asked 6 years ago in Physics by RyanW (710 points)
edited 6 years ago by RyanW

1 Answer

0 votes
 
Best answer

You only need two things to calculate Young's Modulus - stress and strain.

YM (Pa) = Stress (Pa) / Strain (no unit)

However you may not be given these directly in a question - if so you need to know

Stress (Pa) = Force (N) / Area(m2)

Strain (no unit) = Extension (m) / Original length (m)

You may not be given any values at all to calculate YM - you might need to use a stress/strain graph. In this case YM is the gradient of the linear region at the start of the graph.

Take care with units when calculating YM - there are often unit prefixes (e.g. MPa or GPa), and you must take care when calculating area from diameter if unit conversions are involved.

Also strain should be entered as a decimal rather than a percentage - if the strain is quoted as 10% it should be entered as 0.1.

answered 6 years ago by mrgravell (440 points)
edited 6 years ago by mrgravell

Related questions

0 votes
1 answer
0 votes
3 answers
–1 vote
2 answers
asked 6 years ago in Physics by admin (340 points)
0 votes
1 answer
asked 6 years ago in Physics by admin (340 points)
0 votes
2 answers
asked 6 years ago in Physics by admin (340 points)