A New Stress Mathematical Model of Deformation Zone while Straightening Thin-Walled Tube

Abstract:

As there was no precise theoretical model for predicting the stress of deformation zone while straightening thin-walled tube, some technological parameters depended mostly on the experience of workers and on the results of trials, therefore by means of the membrane shell theory the equilibrium differential equations of stress is obtained firstly, then we analyze the strain of deformation zone, finally lead to a new theoretical model for predicting the stress in the elastic and plastic zone. Subsequently the simulated experiments have been done, the results show that the theoretical calculations coincide well with the simulated results, the errors are within 1％of the calculations, it is testified that the model is correct and efficient for the thin-walled tube straightening.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 1488-1493
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.1488
• Online since: January 2013
• Authors: Zi Qian Zhang, Yun Hui Yan, Hui Lin Yang
• Keywords: Elastic-Plastic, Straightening, Stress Model, Thin-Walled Tube

References

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