Influence of deformation and residual stress by induction heating for paint-coating removal on compressive behavior of welded steel members

Abstract

A series of experiment and analysis was carried out to investigate the influence of deformation and residual stresses due to induction heating for paint-coating removal on the compressive behavior of welded steel members, with L-shaped section. The induction heating increased the out-of-plane deformation of the panels of L-section. Tensile residual stresses were generated in the centre of the L-shaped cross-section by the heating. The increase in out-of-plane deformation reduced the elastic stiffness under the compressive loads by about 65% compared to the nonheated members. The influence of the variation of the residual stresses due to induction heating on the maximum compressive load was small.