Thermal effect on free vibration and buckling of size-dependent microbeams

► Thermal effect on the fundamental frequency and critical buckling load is slight when the thickness of the microbeam has a similar value to the material length scale parameter, but it becomes significant when the thickness of the microbeam becomes larger. ► Fundamental frequency and critical buckling load of the microbeam with small slenderness ratio are insensitive to the temperature change. ► Fundamental frequency and critical buckling load decrease with increase in the temperature change of the microbeam.