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Numerical Simulation of the Four-Roll Bending Process for 2.25Cr-1Mo-0.25V Thick-Plate at Elevated Temperature

[+] Author Affiliations
Yafei Wang, Guangxu Cheng, Zaoxiao Zhang, Yun Li

Xi'an Jiaotong University, Xi’an, China

Jianxiao Zhang

Lanzhou LS Heavy Equipment Co. Ltd., Lanzhou, China

Paper No. PVP2017-65629, pp. V01BT01A034; 5 pages
doi:10.1115/PVP2017-65629
From:
  • ASME 2017 Pressure Vessels and Piping Conference
  • Volume 1B: Codes and Standards
  • Waikoloa, Hawaii, USA, July 16–20, 2017
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5791-5
  • Copyright © 2017 by ASME

abstract

In this paper, the four-roll plate bending process of 2.25Cr-1Mo-0.25V steel at elevated temperature is investigated by numerical simulation. This 3-D simulation is finished by using the elastic-plastic dynamic explicit finite element method (FEM) under the ANSYS/LS-DYNA environment. The strain softening behavior of 2.25Cr-1Mo-0.25V steel at elevated temperature is presented and discussed. The stress-strain relationship of the steel plate is modeled using a piecewise linear material model, with the stress-strain curve obtained through tensile tests. The plate bending process with a plate thickness of 150 mm is investigated. The amount and position of maximum plastic deformation are analyzed. The present study provides an important basis for the optimization of bending parameters and further investigation of the effect of high-temperature deformation on the resistance to hydrogen attack of 2.25Cr-1Mo-0.25V steel.

Copyright © 2017 by ASME

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