• CN:11-2187/TH
  • ISSN:0577-6686

›› 1992, Vol. 28 ›› Issue (2): 44-47.

• 论文 • 上一篇    下一篇

铁路高锰钢辙叉螺栓孔断裂分析

林新松   

  1. 装甲兵工程学院
  • 发布日期:1992-03-01

THE FRACTURE ANALYSIS OF THE HOLE OF HIGH-MANGANESE STEEL FROGS ON THE RAILWAY

Lin Xinsong   

  1. Engineering Institute of Armoured Force of PLA
  • Published:1992-03-01

摘要: 本文用弹性力学和有限元法对辙叉螺栓孔的孔边应力进行了估算,结合冶金质量、机加工工艺及断口的SEM分析,划出辙叉孔裂的主要原因,并用断理解力学方法确定了临界裂纹尺寸ac和N-a曲线。

关键词: 断裂, 高锰钢

Abstract: The stress of the hole of frogs on the railway have been estimated by means of mechanics of elasticity and finite element computation. The main reasons of the cracks induced from the hole have been found out by the analyses of metallurgie quality, machining process and SEM on the fracture. The critical size of the cracks ac and N-a curve have determined in the method of fracture mechanics.

Key words: 断裂, 高锰钢