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Cold roll forming is a complicated metal processing, and it is very difficult to simulate the forming process. Based on the Updated-Lagrange method in the deformation me chanics, an elastic-plastic large deformation spline finite strip method is developed to analyze cold roll forming of a thin channel section. The longitudinal membrane strain values on the edge of the deformed strip for four one-pass sequences in different fold angles are got. Simulated restults are compared with the results from previously conducted experiments. The deviation of the simulated peak strain values is within 30% compared with the experimental results.
Based on the Updated-Lagrange method in the deformation me chanics, an elastic-plastic large deformation spline finite strip method is developed to analyze cold roll forming of a thin channel section. The longitudinal membrane strain values on the edge of the deformed strip for four one-pass sequences in different fold angles are got. Simulated restults are compared with the results from previously previously experiments experiments. The deviation of the simulated peak strain values is within 30% compared with the experimental results.