采用解析法研究了W/Cu 梯度功能材料板的残余热应力和在稳态梯度温度场下的工作热应力的大小和分布状况. 结果表明:随着成分分布指数的增加,残余热应力与工作热应力的最大值先减小后增大,当成分分布指数(P)取1时,达到最小值;随着梯度层数的增加,热工作热应力的最大值逐渐减小,但当梯度层数达到6时,随着梯度层数的增加,缓和效果并不明显;当梯度层厚度增加到5mm时,工作热应力的最大值约为非梯度材料工作热应力最大值的50%.
参考文献
| [1] | Bao-Lin Wang;Yiu-Wing Mai;Xing-Hong Zhang .Thermal shock resistance of functionally graded materials[J].Acta materialia,2004(17):4961-4972. |
| [2] | X. Liu;L. Yang;S. Tamura;K. Tokunaga;N. Yoshida;N. Noda;Z. Xu .Thermal response of plasma sprayed tungsten coating to high heat flux[J].Fusion engineering and design,2004(4):341-349. |
| [3] | Bolt, H;Barabash, V;Krauss, W;Linke, J;Neu, R;Suzuki, S;Yoshida, N;ASDEX Upgrade Team .Materials for the plasma-facing components of fusion reactors[J].Journal of Nuclear Materials,2004(0):66-73. |
| [4] | ZHANG Ming;HUANG Hong-jun .Development of functionally gradient materials[J].Materials Science Forum,2002,423-425:599-600. |
| [5] | Jin G;Nishikawa T;Honda S et al.Stress analysis in multilayered FGM plate under thermal shock[J].Materials Science Forum,2003,423-425:693-698. |
| [6] | LING Yun-han;BAI Xin-de;GE Chang-chun .Design and thermal shock performance of W/Cu functionally graded materials used as plasma facing component[J].Materials Science Forum,2003,423-425:49-54. |
| [7] | Gasik M M .Micromechanical modeling of functionally graded materials[J].Computational Materials Science,1998,13:42-55. |
| [8] | Ravichandran K S .Thermal residual stress in a functionally graded material system[J].Materials Science and Engineering A,1995,A201:269-276. |
| [9] | 凌云汉,白新德,葛昌纯.偏滤器部件W/Cu功能梯度材料的热应力缓和[J].清华大学学报(自然科学版),2003(06):750-753. |
| [10] | Itoh Y;Takahashi M;Takao H .Design of tungsten/copper graded composite for high heat flux components[J].Fusion Engineering and Design,1996,31:279-289. |
| [11] | 黄义.弹性力学基础及有限单元法[M].北京:冶金工业出版社,1983 |
| [12] | 张开银,张建刚,吕运冰.功能梯度材料复合板的热应力计算分析[J].湛江海洋大学学报,1997(01):34. |
| [13] | Suresh S;Mortensen A.功能梯度材料基础-制备及热机械行为[M].北京:国防工业出版社,2000:108-115. |
| [14] | 张晓丹,戚国安,汪朝霞,葛昌纯.梯度功能材料设计中的数学模型及其热应力分析[J].应用科学学报,1995(02):202-208. |
| [15] | 李益民,郑子樵,梁叔全,胡文彬.梯度功能材料的组成设计分析[J].中国有色金属学报,1995(01):55-58,67. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%