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# Re: [femm] number of points in material defintion

- To: femm@yahoogroups.com
- Subject: Re: [femm] number of points in material defintion
- From: Alexandru Andrei <alinixovici@yahoo.co.uk>
- Date: Tue, 4 Feb 2003 06:05:27 -0800 (PST)
- In-reply-to: <b1o3al+1rgf@eGroups.com>
- Reply-to: alinixovici@yahoo.co.uk

I think you should take less points on the aprox linearity zone (let's say 5-6) and as many as posible in the non-linearity zone (let's say 50-60). If you are measuring the B-H points (it's a real problem) then you can make much mesurments in the n0n-linearity zone (not 50-60 but 10-15) and after that make an interpolation to obtain as many points as you need but i think 100 points are enough (maybe too much?)

"Michael Salloker <michael.salloker@fh-joanneum.at>" <michael.salloker@fh-joanneum.at> wrote:

> `Hello,
> I wonder how many points un B-H-curve are necessary to get a good
> description of a ferromagnetic material.
> I found out, that increasing the number of points also increase the
> speed of the calculation, so its necessary to find a sufficient large
> number of data points.
> So imagine I have a material with a saturation of about 1T, i could
> do a spacing of 0.1 T, or 0.05T aso. In general I believe its better
> to make aquidistant points for B and for H, due the nonlinearity.
> Whats is the experts opnion?
> Thanks
> Michael
> `
> `Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.`

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- References:
  - number of points in material defintion
    - From: "Michael Salloker <michael.salloker@fh-joanneum.at>" <michael.salloker@fh-joanneum.at>

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