elongation in a point or area

[mekafime]

Hi
I am analyzing a joint K of rectangular hollow section, my doubt is the elongation I can take a point or I need an area, because in a point I put the sensor of medition (galga) to plot force - deformation curve.

Model in Ansys

Force - deformation curve

 

[rb1957]

force "at a point" is probably force "on a node". A node has an effective area, shared between a number of elements.

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