I’ve been using Autodesk’s Fusion 360 app for a while to design and model objects that I print on the Form 1+, with great results. It recently gained some new simulation capabilities (see for details: http://www.autodesk.com/products/fusion-360/blog/november-9-2016-update-whats-new-2/).
I tried those capabilities out on a two-part case with a snap-fit joint that I previously designed in Fusion and then successfully printed:
See this thread on their forum for some guidance about how to set up the simulation: http://forums.autodesk.com/t5/design-validate-document/quick-start-for-event-simulation/td-p/6680654
Below is a video of the final result.
To the material scientists at Formlabs: It would be great if you could update the technical data sheets with some information that is currently missing (see details in the linked thread).