Data included in this file pertains to the experimental and simulation data acquired when thermo-mechanically loading a rectangular plate. Data includes: DIC readings of mode shapes, temperature maps, DIC measurements of the plate shape, FE mode shape predictions and resonant frequency data (experimental results and FE predictions). This is the source data for the paper “High temperature modal analysis of a non-uniformly heated rectangular plate: experiments and simulations” by A. C. Santos Silva, C. M. Sebastian, J. Lambros and E.A. Patterson