摘要
为研究碳纤维增强树脂基复合材料(CFRP)钻削过程传热规律及温度分布特性,在对材料热物理特性均匀化处理的基础上,利用COMSOL Multiphysics建立单向CFRP钻削温度场数值仿真模型,探究钻削过程中热量传递及温度场分布规律。结果表明,出口处温度场呈椭圆形分布状态,椭圆形最小值离心率e为0.771,且椭圆的长轴和纤维方向平行。通过实验对比,纤维方向和垂直纤维方向的温度误差分别为7.5%和7.8%,实验结果验证了数值仿真模型的正确性。
The heat transfer rule and temperature distribution characteristics of carbon fiber reinforced polymer(CFRP)during drilling were studied by finite element simulation method.On the basis of homogenizing the thermophysical properties of the material,the COMSOL software was used to establish unidirectional CFRP drilling temperature field numerical simulation model,and the heat transfer and temperature field distribution during drilling were investigated.The results show that the temperature field at the outlet is elliptical distribution,the minimum eccentricity e of the ellipse is 0.771,and the long axis of the ellipse is parallel to the fiber direction.The experimental results show that the temperature errors in fiber direction and vertical fiber direction is 7.5%and 7.8%,respectively.The correctness of the numerical simulation model is verified by the experimental results.
作者
陈檐成
李鹏南
王春浩
邱新义
李树健
CHEN Yancheng;LI Pengnan;WANG Chunhao;QIU Xinyi;LI Shujian(College of Mechanical and Electrical Engineering,Hunan University of Science and Technology,Xiangtan 411201)
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2021年第2期31-37,共7页
Aerospace Materials & Technology
基金
国家自然科学基金项目(51775184,51975208,51905169)。
作者简介
第一作者:陈檐成,1994年出生,硕士研究生,主要从事复合材料切削热研究工作。E-mail:chenyancheng0206@163. com;通信作者:李鹏南,教授,主要从事难加工材料的切削加工研究。E-mail:2002lpn@163. com。
