Residual stress remains the single largest unknown in industrial damage situations. In this research the neutron diffraction technique was used to investigate and compare the residual stress characteristics in a several weld arrangements. Single and multi bead weld on a plate of low-carbon steel using the flux-cored arc welding (FCAW) process are presented. This research has focused on: 1) restraint during welding, 2) the effects at the start and end of the weld for a single bead, and 3) the effect of increasing the number of passes on the residual stress behaviour. The number and resolution of the measurements carried out in this work achieve a new level of detail and reveal significant features of the residual stress pattern in multi-bead welding. The intention is to provide key data for the validation of design, fitness-for-purpose methodologies and finite-element tools.
|Number of pages||12|
|Journal||Welding Research Abroad|
|Publication status||Published - 1 Dec 2005|
- Neutron Diffraction
- Residual Strain
- Residual Stress