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CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
Press braking; Welding process; Residual stress; Numerical solution; Laboratory test
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Finite Element Investigations Of The Effect Of Residual Stress In Cold-Formed Sigma Beams, Feiliang Wang, Jian Yang
Finite Element Investigations Of The Effect Of Residual Stress In Cold-Formed Sigma Beams, Feiliang Wang, Jian Yang
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
Press braking is a cold forming operation used to fold the angle along the flat sheet between the top punch and bottom die. The residual stress will be induced in this process as a result of plastic deformation. In the welding process, a dynamic thermal cycle is introduced to generate a non-uniformly temperature distribution on the heat affected zone (HAZ), and the residual stress also occurs in the process as a result of uneven cooling along the welding bead. The existence of residual stress can superimpose onto the external loadings to affect the stiffness and load resistance capacity of the …