ACP Composite Flat Plate warping
I'm doing a simple analysis of a flat composite plate (carbon fiber - data from a datasheet). I am fixing one edge and applying a purely tensile force on the other side. From CLT, and from just a general intuition, I expect that the flat plate should stretch in the tensile direction. However, I am getting most of my deflection in the Y direction (upwards in my coordinate system). I suspect something is wrong with my setup, but can't quite put my finger on it. I've attached pictures with setup and deformation results, as well as the archived project. I am getting a correct force reaction at the fixed support, as well as 0 displacement there, which checks out.
Currently the plies are oriented [0/45/-45/90/-45/45/0] (odd symmetry), for an unidirectional fiber.
Any help is appreciated.