Equivalent of the Kirsch Equations for an elliptical rather than circular hole

Question

Is there an equivalent set of closed form equations to the Kirsch Equations but for an elliptical hole rather than a circular hole?

Answer 1

Inglis used complex potential functions to extend Kirsch's work to treat the stress field around a plate containing an elliptical rather than circular hole

http://www.saylor.org/site/wp-content/uploads/2012/09/ME1023.2.1.pdf