Administration of the project
Indentation by a Flat Elliptical Punch: Online Calculator

This is a simple calculator for an elastic indentation by a flat punch.
Pressure profile can be calculated as follows:
where ,
being semi-major axis and
being semi-minor axis,
– normal load.
Indentation depth is calculated using following equation:
, where
is the complete elliptical integral of the first kind,
is eccentricity,
is the reduced elastic modulus,
.
Equations are taken from [1].
Note: the elliptic integral of the first kind is required to calculate the indent value. An approximate formula is used here (http://www.exstrom.com/math/elliptic/ellipint.html).
