Coupled strain and temperature gradient analysis in curved surfaces

Abstract A common method in experimental mechanics is 3D digital image correlation (DIC) for determining deformations of curved surfaces, whereby the motion material points measured. The temperatures induced by deformation surfaces or other heat sources are particular interest as well. In this context, surface can be measured using infrared thermography systems. However, disadvantage approach that a thermographic camera only provides two‐dimensional temperature distribution (plane images) three‐dimensionally surfaces. Thus, and gradients on assigned to cannot specified. problems interest. literature, planar studied simplifying assumptions made so simple coupling DIC possible. contrast, contribution presents where coupled with such way temperature, gradient, well displacement strain distributions at determined over temporal processes. also allows continuous gradient determination entire domain, since special class functions named radial basis used interpolating data.