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Good morning,
Please help me in explaining what is the differences of different type of strain?
And which is good to corelate with experimental strain gauge.
Also, is there any documentations I can read about it?
Thanks,
Jerome.
P1 Major Strain is the strain in the orientation of the maximum occurring strain (e.g. in a tensile sample this would be along the length of the test piece), P3 Minor strain is the strain occurring perpendicular to that strain. Experimental strain gauges may be uniaxial,rosette etc so it would depend on the specifics.
I would recommend starting with the 'Practical Aspects of Finite Element Simulation' free e-book available from the Altair University pages
https://altairuniversity.com/free-ebooks/
@Paul Sharp I also found out that the top bottom layer, if I select individual ply.
If I use the p1 strain for top ply, I should use the p3 strain for the bottom ply. vice versa.
This is mayne the element normal? and the surface element?
@Paul Sharp I also found out that the top bottom layer, if I select individual ply. If I use the p1 strain for top ply, I should use the p3 strain for the bottom ply. vice versa. This is mayne the element normal? and the surface element?
I don't really understand that, how you describe using P1 on one surface and P3 on the other, I'm not sure that makes sense
Paul,
Yes. I am wondering why that is it. I need to use P3 for the ply1 to match but P1 for the ply32 (last ply) to match experimental data.
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