| 间隙对单搭接胶接接头强度和应力的影响 |
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| 引用本文： | 余海洲,游敏,曹平,杨春梅.间隙对单搭接胶接接头强度和应力的影响[J].三峡大学学报(自然科学版),2004,26(1):41-43. |
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| 作者姓名： | 余海洲 游敏 曹平 杨春梅 |
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| 作者单位： | 三峡大学,机械与材料学院,湖北,宜昌,443002 |
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| 基金项目： | 湖北省教育厅科研计划重大项目(2003Z001) |
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| 摘 要： | 研究了搭接长度为12．5mm的单搭接接头搭接区域预留间隙对搭接强度和应力的影响。结果表明，间隙的位置对搭接强度有较大的影响，与连续胶层相比，胶层中部一定宽度的间隙虽然使名义强度降低，但对于提高单搭接接头的实际强度有明显的作用，剪切强度最大值可比连续胶层接头增大约60％，而胶层端部预留间隙却使名义强度和实际强度均显著降低，对两种接头进行了有限元的数值分析，指出最大应力仍然处于胶瘤端部附近，间隙位置对应力的峰值有较大的影响。
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| 关 键 词： | 有间隙胶缝 单搭接接头 强度 应力 有限元法 |
| 文章编号： | 1007-7081(2004)01-0041-03 |
| 修稿时间： | 2003年11月11 |
Effect of Recessed Bonding on Strength of Adhesively Bonded Single-Lap Joints |
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| Yu Haizhou You Min Cao Ping Yang Chunmei.Effect of Recessed Bonding on Strength of Adhesively Bonded Single-Lap Joints[J].Journal of China Three Gorges University(Natural Sciences),2004,26(1):41-43. |
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| Authors: | Yu Haizhou You Min Cao Ping Yang Chunmei |
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| Abstract: | The effect of recessing by removing portions of the adhesive from the interior of the overlap on the strength and stress distribution of adhesively bonded single-lap joints with lap length 12. 5mm is discussed. The results show that the position of recessing has great effect on the strength of adhesively bonded single-lap joints. Compared with continuous single-lap joints, the nominal strength of recessed bonding reduces while actual strength increases distinctly. The maximum shear strength increases by 60 percent; but the nominal strength and actual strength both decrease obviously. In addition, the finite element analysis of recessed bonding and continuous bonding are carried out. It is shown that the maximum shear stress appears still near the end of fillet. The position of recessing has great influence on the maximum stress. |
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| Keywords: | recessing adhesively bonded single-lap joints strength stress finite element method |
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