[Insight-users] Fw: IA-FEMesh Modulus & Poisson Ratio

[H-B]

----- Forwarded Message ----
From: H-B <h4cd at yahoo.com>
To: Matt McCormick <matt at mmmccormick.com>
Sent: Sun, January 23, 2011 12:33:32 PM
Subject: Re: [Insight-users] IA-FEMesh Modulus &amp; Poisson Ratio


Hi Matt,

This is really usefull information, thank you very much.

Young's modulus, I found this values in a book:
http://hh7.net/jan2/hh7net2_12957748891.gif
could i use it (the average)?

--- On Sat, 1/22/11, Matt McCormick <matt at mmmccormick.com> wrote:


>From: Matt McCormick <matt at mmmccormick.com>
>Subject: Re: [Insight-users] IA-FEMesh Modulus &amp; Poisson Ratio
>To: insight-users at itk.org
>Date: Saturday, January 22, 2011, 12:35 PM
>
>
>Hi H.B.,
>
>> From ware could i get Modulus & Poisson Ratio values for Organ like Liver
>Blader ....
>> As i read The Poisson's ratio of a stable, isotropic, linear
>elastic material cannot be less than −1.0 nor greater than 0.5.  
>
>The Poisson's Ratio of most naturally occurring materials are greater than
>zero.  There are some fabricated materials that have a negative Poisson's
>Ratio.  http://silver.neep.wisc.edu/~lakes/Poisson.html
>
>Most biological soft tissues are considered nearly incompressible, i.e.
>Poisson's Ratio of ~0.5.  For finite element modeling, a value less that 0.5
>should be chosen, e.g. 0.495, to avoid problems.
>
>Young's modulus values for soft tissues are usually on the order of 10's of
>kPa, but you will need to find an article where mechanical testing was done on
>your tissue of interest.
>
>Matt
>
>
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