• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

›› 1994, Vol. 30 ›› Issue (1): 75-81.

• 论文 • 上一篇    下一篇

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热作模具材料中硬化和损伤对裂纹尖端温度的影响

王洪礼;樊学军   

  1. 天津大学;太原工业大学
  • 发布日期:1994-01-01

EFFECT ON THE TEMPERATURE NEAR CRACK TIP CAUSED BY HARDENING AND DAMAGE OF THE HEAT-WORK MOULD MATERIALS

Wang Hongli;Fan Xuejun   

  1. Tianjin University Taiyuan University of Technology
  • Published:1994-01-01

摘要： 从热力学理论的框架出发，采用内变量理论，研究了硬化对裂纹尖端温度的影响。还按Le-maitre-Chaboche的损伤理论，考虑了损伤对裂纹尖端温度的影响。结果表明，潜热对温度的分布具有不容忽视的影响。

关键词: 裂纹, 模具, 微观组织, 温度

Abstract: On the basis of thermodynamics principles, the effect of hardening on the temperature of the crack tip is studied by using internal variable theories. It also considers the effect of damage on the temperature of the crack tip according to Lemaitre Chaboche damage principles. It concludes that latent heat has uneligible effect on the temperature distribution.

Key words: Crack, Micro structure, Mould, Temperature

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