- #1

- 57

- 1

I want to know what the difference between bulk modulus and young modulus is? In some papers, it seems that they have compared the value of these two as if they are the same.

Could anyone help me with this regard?

Regards,

Sara

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter saray1360
- Start date

In summary, the difference between bulk modulus and young modulus lies in their respective definitions and applications. While bulk modulus measures the resistance to volume change under pressure, young modulus measures the resistance to length change under stress. They are approximately equal when Poisson's ratio is near 0.33.

- #1

- 57

- 1

I want to know what the difference between bulk modulus and young modulus is? In some papers, it seems that they have compared the value of these two as if they are the same.

Could anyone help me with this regard?

Regards,

Sara

Physics news on Phys.org

- #2

- 2,489

- 105

Youngs modulus refers to stretching and bulk modulus refers to compressing.

- #3

- 57

- 1

it is not the answer, sorry

- #4

- 2,489

- 105

- #5

Science Advisor

Homework Helper

Gold Member

- 2,592

- 19

Dadface said:

The bulk modulus

(*) [itex]\nu[/itex] is Poisson's ratio, the ratio of the lateral contraction over the axial contraction for a rod under axial load.

EDIT: Removed unnecessary comment.

Last edited:

The bulk modulus, also known as the volume modulus, is a measure of a material's resistance to uniform compression.

The young modulus, also known as the tensile modulus, is a measure of a material's stiffness or resistance to deformation when under tension.

The main difference between bulk and young modulus is the type of force each measures. Bulk modulus measures the resistance to compression, while young modulus measures the resistance to tension.

Bulk modulus is typically measured in Pascals (Pa) or Gigapascals (GPa), while young modulus is measured in Pascals (Pa) or Megapascals (MPa).

Bulk and young modulus are important parameters used in materials science to characterize the mechanical properties of different materials. They are used to determine a material's ability to withstand compression or tension, which is important in engineering and design applications.

- Replies
- 23

- Views
- 2K

- Replies
- 3

- Views
- 900

- Replies
- 27

- Views
- 375

- Replies
- 29

- Views
- 4K

- Replies
- 2

- Views
- 4K

- Replies
- 17

- Views
- 1K

- Replies
- 4

- Views
- 1K

- Replies
- 2

- Views
- 1K

- Replies
- 3

- Views
- 2K

- Replies
- 4

- Views
- 865

Share: