全部

力学与实践 ›› 2014, Vol. 36 ›› Issue (5): 583-589.doi: 10.6052/1000-0879-13-553

• 应用研究 • 上一篇    下一篇

带钢横向瓢曲变形的解析研究

常铁柱, 韩培恋   

  1. 中冶京诚工程技术有限公司, 北京 100176
  • 收稿日期:2014-02-25 修回日期:2014-04-09 出版日期:2014-10-15 发布日期:2014-11-13
  • 通讯作者: 常铁柱,男,博士,主要研究板带轧制和板形屈曲行为.E-mail:changtiezhu@ceri.com.cn E-mail:changtiezhu@ceri.com.cn

TRANSVERSE BUCKLING OF STRIP

CHANG Tiezhu, HAN Peilian   

  1. MCC Capital Engineering & Research Incorporation Limited, Beijing 100176, China
  • Received:2014-02-25 Revised:2014-04-09 Online:2014-10-15 Published:2014-11-13

摘要:

薄宽带钢的横向瓢曲是一种产生机理与解决对策都未知的板形缺陷。基于艾利应力函数和Timo-shenko 最小功原理建立了横向瓢曲前屈曲变形的力学模型,获得了其前屈曲应力场分布的表达式;运用伽辽金虚位移原理解法获得了其临界屈曲载荷。研究结果可为连退线上板带材生产过程中横向瓢曲的预测和控制提供参考依据。

关键词:

热瓢曲|临界应力|屈曲|退火炉|带钢

Abstract:

The transverse buckling of a strip involves a serious flatness defect, and its mechanism of production is still unclear. Based on Airy stress function and Timoshenko's principle of least work, a new mechanical model of transverse pre-buckling is established, and the stress field in the strip prebuckling state is obtained. The mathematical model of the critical buckling stress is also built by Galerkin's principle of virtual displacement.The results of the analysis could be used for prediction of the transverse buckling in the annealing furnace.

Key words:

heat-buckling|critical stress|buckling|annealing furnace|strip

中图分类号: 

  • TG335.11