Thermo-Electro-Mechanical Simulation of Aluminum-Steel Imperfect Electrical Contact With Extremely High Interfacial Temperature

This paper introduces the frequency response function (FRF)-based continuous convolution and fast Fourier transform (CC-FFT) algorithm to simulate a periodically large contact area rather than the influence coefficient (IC)-based discrete convolution fast Fourier transform (DC-FFT). The former and the latter may be called as a periodic boundary condition (PBC) and a non-periodic boundary condition (nPBC) based on their periodicity. In the calculation, the contact pressure, surface displacement, and surface temperature are analyzed and compared by means of PBC CC-FFT and nPBC DC-FFT.