激光淬火热致残余应力的数值分析

基金项目:

云南省自然科学基金

详细信息

Numerical analysis of thermal residual stresses during laser quenching

Department of Basic Science, Kunming University of Science and Technology, Kunming, 650093

摘要: 在分析温度、相变、应力的相互耦合关系的基础上,讨论了相变条件的数学模型和相应材料性能改变的方程,提出了反映相变影响的温度场控制方程,导出了含相变的热弹塑性本构方程,应用有限元进行了温度场、应力场的计算.
- 激光淬火 /
- 温度场 /
- 本构方程 /
- 相变 /
- 热应力 /
- 有限元
Abstract: Based on the analysis of coupling action of temperature,phase transformation and stress,the phase transformation condition and equation related to materials properties are discussed.The expression showing the temperature field effecting on phase transformation and the thermal elastoplastic constitutive equation are derived.Finally,the analyses of temperature field and stress field are made by finite element method.
- laser quenching /
- temperature fields /
- constitutive equation /
- phase transformation /
- thermal stresses /
- FEM

[1]	姚善长.中国激光,1986;14(6):321~327
[2]	程永兴,郑立辉,周清.金属科学与工艺,1995;8(1):226~232
[3]	Inoue T,N agaki S,Kishino T et al.Ingenieur-Archiv,1981;50:315~327
[4]	徐祖耀.马氏体相变与马氏体.北京:科学出版社,1981:91~112
[5]	Wang H G,Guan Y H,Chen T L et al.Journal of Materials Processing Technology,1996;63(1~3):550~553
[6]	Guan Y H,Chen T L,Wang H G.Journal of Materials Processing Technology,1996;63(1~3):614~618
[7]	Fletcher A J.Thermal Stress and Strain Generation in Heat Treatment.London and New York:Elsevier Applied Science,1989:126~146
[8]	米谷茂.残余应力的产生和对策.北京:机械工业出版社,1983:86~89
[9]	姚善长,Ericsson T.化工机械,1987;14(5):53~60