Okay, I am a "steel" guy and running anlysis on isotropic materials is not my cup of tea, yet . I need to run an analysis on an aluminum/fabric assembly. Where do you begin constructing a custom material for fabric? There's really no elastic modulous? I literally just purchased the upgrade to simulation premium so I can run the non-linear side of things...will that include more materials to choose from or at least something close to a fabric material?