I am trying to simulate viscoelastic material behaviour using Abaqus version 6.7.
As a test I am using a cyclic load process about 50-200 load cycles which is applied to block material made out of polyurethane. Plastic behaviour of the material is not involved.
Due to the speed of the loading process I am using explicit fully thermo-mechanical coupled calculations. My problem is now that there is no rising of the temperature or variation of the temperature at all in my simulation.
The calculation settings are as follows:
One surface is completely fixed (encastre) and on the opposite surface of the block a cyclic pressure load is applied. The initial temperatur is set to 10°C (283°K) via boundary condition. Values for the conductivity, specific heat, thermal expansion, "dynamic E-Moduly" in terms of a prony serie, poissons ratio are all given material parameters.
Due to the manual the option to use predefined field variables to prescribe an initial temperature condition can not be used in fully coupled explicit calculations.
My question is now if there is a heating option due to pure viscoelasting material properties implemented in abaqus.
I am asking because I found in the manuals only references that plastic behaviour is contributing to the internal heating and thus leading to a rising of the temperature but I found no description that and if how viscoelastic (dissipative) energy is contributing to the interal energy and thus lead to a variation of the temperature.
Which other options are available to simulate temperature dependent material behaviour?