I spent most of Saturday breaking around forty of these little guys by twisting and pulling on them with a big machine known as the In Plane Loader or IPL. It grabs both end of these pieces and does whatever sick combination of pulling, sliding sideways and rotating we tell it to. We hope to take the data from these tests to develop a model that can help predict failure in a complex composite structure.
Or something like that.
It was in the mid seventies and sunny on Saturday when I was inside all day running tests, and mid thirties and raining/snowing today when I had the day off. Go figure.