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zazi77

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- Thread starter zazi77
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In summary, the author is discussing the use of Young's modulus as a spring constant and how it can be used to determine the center of rotation for teeth.

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zazi77

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Engineering news on Phys.org

- #2

berkeman

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Welcome to the PF.

Can you post a couple links to where you have seen this?

Can you post a couple links to where you have seen this?

- #3

zazi77

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zazi77

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- #5

256bits

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Here is a brief consideration on using Young's modulus as a spring constant, which is what the article is doing.

https://ccrma.stanford.edu/~jos/pasp/Young_s_Modulus_Spring_Constant.html

Note that F/S is pressure, where S is an area.

If you move S to the right hand side you have ΔL [ the dy ] times Y ( Young's Modulus ) / L( length) times S(area)

If you consider upon the Y/L as a density, that is related to the number of little springs that are in the total length L, and acting upon the area.

Maybe someone can explain that better.

- #6

zazi77

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thank you for your reply, I already saw that link. What I don't get is why Y/L is a density

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Baluncore

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Please give us a reference to the source of the .png in post #3.

Do you also have a download link ?

Do you also have a download link ?

- #8

zazi77

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https://www.ncbi.nlm.nih.gov/pubmed/2088149 I don't have dowlonad link

Density is the measure of how much matter is packed into a given space. It is usually expressed in units of mass per unit volume, such as grams per cubic centimeter or kilograms per cubic meter.

A constant is a value that does not change in a given situation or under certain conditions. In scientific terms, it is a fixed and unchanging quantity.

A spring constant is a measure of the stiffness of a spring. It is the amount of force required to stretch or compress a spring by a certain distance.

Density is not directly related to a constant, but it can be used in calculations involving a spring constant. For example, the density of an object can affect the amount of force needed to compress a spring attached to it.

No, the density of a constant cannot change because it is a fixed value. However, the density of an object or material that is being measured using a spring constant may change depending on factors such as temperature or pressure.

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