摘要
采用有限元方法（ＦｉｎｉｔｅＥｌｅｍｅｎｔＭｅｔｈｏｄ）对Ａｌ２Ｏ３－Ｔｉ系梯度功能材料在制备过程中产生的残余热应力进行了线弹性分析。详细讨论了梯度层数目、梯度层厚度和成分梯度指数对应力大小和分布的影响，确定了各项最佳参数。非梯度功能材料（ＮＦＧＭ）与优化后的梯度功能材料的残余热应力对比结果显示：梯度功能材料缓和热应力的效果十分显著。
The elastic finite element method was introduced to study thermal residual stresses developed during fabrication of Al 2O 3 Ti system functional gradient material (FGM). The effect of graded interlayer number, graded thickness and composition gradient exponent on thermal residual stress values and distributions was analyzed, then several parameters were optimized. Thermal residual stresses in non gradient material (NFGM) and optimized FGM were comprised, the result showed the effect of thermal stresses mitigated by FGM was remarkable.
出处
《功能材料》
EI
CAS
CSCD
北大核心
1997年第5期533-536,共4页
Journal of Functional Materials
基金
国家自然科学基金
关键词
梯度功能材料
氧化铝-钛系
残余热力
有限元
functional gradient material, thermal residual stress, finite element method
