Numerical simulation of elastic recovery for uncured rubber compound with a multi-mode Simhambhatla–Leonov model

Transient squeeze flow and recovery experiments are simulated for a rubber compound. The rheological behaviour of the selected compound is described with a multi-mode Leonov model developed for filled uncured elastomers. The calculation is performed with the finite element software POLYFLOW. In particular, we focus on the deformation undergone under the application of a load, and on the subsequent recovery that develop upon cessation of the squeezing force. We also try to establish a possible empirical relationship between the applied squeeze force and time interval (input data) and the resulting deformation and recovery (output quantities).