An incremental numerical method for calculation of residual stresses and strains in cold-formed steel members
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- 作者：H. Amouzegara ; B.W. Schaferb ; M. Tootkabonia ; mtootkaboni@umassd.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Cold-Forming ; Residual stress ; Residual strain ; Cold-formed steel members ; Elasto-plastic bending
- 刊名：Thin-Walled Structures
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：106
- 期：Complete
- 页码：61-74
- 全文大小：7672 K
文摘
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A method is proposed to obtain the residual stresses and strains from cold-forming.
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Cold-forming is modeled as a set of elastoplastic and springback deformations.
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Results are verified with finite element modeling and experimental measurements.
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Plasticity is modeled through Prandtl-Reuss flow rule and von Mises yield criterion.
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A parametric study is performed on the variability in residual stresses and strains.