I am interested in modelling the multiaxial response of thermoplastics (PP, HDPE) undergoing impact situations such as those found in a car-crash (strain rates between 102 and 103 s-1).
My experimental data will be falling weight and tensile-impact test results.
Do you think the TNM or PNM models will be appropriate for these particular conditions?. Otherwise, which model would you suggest for this application?
Thank you very much in advance.