本文用细观损伤力学的方法对理想的无裂纹陶瓷试样最大拉伸断裂应力的尺寸效应进行了分析,解释了材料的最大拉伸载荷随试件宽度的减小而增大的原因.理论分析结果与对Al2O3/TiC陶瓷复合材料的实际测量结果相吻合.
参考文献
| [1] | J Ozbolt;R.Eligehausen.Size-Scale effects in the failure mechanisms of materials and structures[M].London,1996:290. |
| [2] | Y.N.Li;Z.P.Bazant.[M].:274. |
| [3] | E Smith .The maximum load size effect for uncracked brit tle structure[J].Journal of Materials Science,1997,32:3939-3942. |
| [4] | Kachanov L M.Introduction to Continuum Damage Mechanics[M].Martinus Nijhoff Publishers,Dordrecht,The Netherlands,1986 |
| [5] | Dugdale D S .Yielding of steel sheets containing slits[J].Journal of the Mechanics and Physics of Solids,1960,8:100-104. |
| [6] | 中国航空研究院.应力强度因子手册[M].北京:科学出版社,1993:252. |
| [7] | A F Bower;M.Ortiz .The inference of grain size on the to ughness of monolithic ceramics[J].ASME Journal of Engineering Materials and Technology,1993,115(03):228. |
| [8] | H Tada;P.C.Paris;G.R.Irwin.The stress analysis of crack s handbook[M].Del Research Co ,Hellertown,PA,1973 |
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%