为了较好地模拟非均质材料的细观损伤行为,利用含夹杂与裂尖的解析胞元法建立考虑温度效应的复合材料内部裂尖邻域的细观力学模型,利用该模型分析非均质材料中初始缺陷对材料力学性能的影响.研究结果表明,建立的解析胞元法不仅能够比较精确地模拟非均匀材料细观几何结构特征对宏观性能的影响,还能够预测温度场变化引起的裂纹扩展.
In order to simulate micromechanieal damage behavior of heterogeneous materials, the micromechanics model with the consideration of temperature effect near a crack-tip in a composite has been presented by using the method of analytical cells, and the influences of initial defect on mechanical properties of heterogeneous materials were analyzed. The results indicated that the method can not only simulate the effects of micro-structural geometry on macro-properties but also forecast micro-crack propagation with temperature changing.
参考文献
| [1] | William Speer;Omar S. Es-Said .Applications of an aluminum-beryllium composite for structural aerospace components[J].Engineering failure analysis,2004(6):895-902. |
| [2] | Harries D R.Welding techniques for the rarer metals[J].Nuclear Power,1958(05):219-212. |
| [3] | Gilliland R G .Fusion welding end caps in beryllium tubes[J].Welding Journal,1963,42(01):29s. |
| [4] | Passmore E M .Fusion welding of beryllium[J].Welding Journal Research Supplement,1964,43(03):116. |
| [5] | Brundige E L .Welding of beryllium[J].Welding Journa Research Supplement,1959,38(10):410. |
| [6] | Hauser D .Electron beam welding of beryllium[J].Welding Journal Research Supplement,1967,46:525. |
| [7] | Hicken G K .Joining beryllium by electron beam braze welding technique[J].Welding Journal Research Supplement,1967,46(12):541. |
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%