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Residual stresses in roll-formed square hollow sections
AbstractResidual stresses play a significant role in determining roll-formed members’ behaviour and strength. This paper presents an extensive experimental investigation of the residual stresses in roll-formed square hollow sections. With a total of over 600 readings taken, the residual stresses on outside surface, along thickness direction and inside surface, were analyzed using X-rays diffraction method. The experimental results provide a further understanding of the magnitude and distribution of the residual stresses in roll-formed square hollow sections. The residual stresses on the welding line were found to be the maximum, and through thickness variations of residual stresses came out typically as bi-linear. For the same dimension, the forming process has a significant effect on the distribution of longitudinal residual stresses on the outside surface of square hollow sections.
Residual stresses in roll-formed square hollow sections
AbstractResidual stresses play a significant role in determining roll-formed members’ behaviour and strength. This paper presents an extensive experimental investigation of the residual stresses in roll-formed square hollow sections. With a total of over 600 readings taken, the residual stresses on outside surface, along thickness direction and inside surface, were analyzed using X-rays diffraction method. The experimental results provide a further understanding of the magnitude and distribution of the residual stresses in roll-formed square hollow sections. The residual stresses on the welding line were found to be the maximum, and through thickness variations of residual stresses came out typically as bi-linear. For the same dimension, the forming process has a significant effect on the distribution of longitudinal residual stresses on the outside surface of square hollow sections.
Residual stresses in roll-formed square hollow sections
Thin-Walled Structures ; 47 ; 505-513
2008-10-29
9 pages
Article (Journal)
Electronic Resource
English
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