I am fairly new to this type of analysis and before I get to the fatigue part have an FEA model to deal with first! I am looking to do this with various grades of PTFE, ETFE etc.
But my query is that I realise there is no widely used/ accepted models for viscoelastic fatigue (please correct me if wrong!). If I only need to concern myself with low temperature (less than glass transition), can I ignore the viscous part and just consider the elastic properties of the material and use an elastic fatigue model?
Thanks in advance.