The Young's modulus E is a material property. This constant correlates the
applied stress to the corresponding strain on a given material using Hooks law.
This constant is defined only for elastic deformation of materials at which the
deformation on materials is reversible and the deformation disappears when the
applied stress is removed. Young's modulus=Stress/Strain. The constant E is the
slope of elastic portion on of stress-strain curve of a given material, then it
depends on material type. This is what we refer to as Young's (Elastic) modulus
of materials.
In Micro-scale and Nano-scale components, the response of materials changes
dramatically. However, the definition of Young's modulus stay the same
regardless of quantity of this constant as it is compared with macro-sized
components.
Thanks,
Ahmad

----- Original Message -----
From: Jackle D 
Date: Thursday, November 20, 2003 8:53 am
Subject: [mems-talk] what decide the value of Young's modulus

> Dear all:
>
> I want to do some research-work about Young's modulus of
> thin/thick films, would you kindly tell me Young's modulus is
> related to what? What makes material a big, or low Young's
> modulus?
> Any advice is appreciated.
>
> Regards!
>
> jackle
>
>
>
>
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