Analysis of friction influence on material deformation under biaxial compression state

The biaxial compression test, based on the concept presented in [1] and on the technique of the channel-die test [2,3], is discussed as an experimental method allowing evolution of the friction conditions from the dry-film lubrication, by using MoS2 grease, to the dry conditions to be analysed. This article gives an outline of the experimental set-up, its validation and the technique of the test results analysis. The analysis of friction is based on the experimental data coupled with the numerical simulation of the performed tests and on the theoretical approach introduced in [4]. The Oxygen-Free High Conductivity (OFHC) copper in the 'as-received' state in contact with the 42CrMo4 steel are chosen as the materials used for the experimental investigation.