Optimisation of composite repair parameters for cracked aluminum alloy plate with the design of experimental design method
-
摘要: 建立含穿透裂纹铝合金板复合材料单面胶接修补板条的三维有限元模型，基于位移外推法对裂纹尖端的应力强度因子（SIF）进行求解。使用全试验设计的方法对不同修补参数下修补板条的单向拉伸试验进行仿真模拟，利用二次方程描述并研究了补片长度、补片厚度及胶层弹性模量共同作用时对SIF的影响，确定了以SIF为评价指标时对修补效果影响最大的修补参数，优化了修补设计，并应用优化修补参数进行单向静拉伸试验。结果表明，当三类修补参数共同作用时，补片长度对修补效果影响最大；使用优化修补参数单面修补试验件的破坏强度比未修补板的提高了12.1%，恢复到完好板的90.5%。Abstract: A three-dimensional finite element model of the adhesively bonding composite repair structure for cracked aluminum alloy plate was established, and the stress intensity factors around the crack tips were calculated based on the displacement extrapolation method. The run of different uniaxial tension test simulations based on experimental design methods allows us to analyze the effect of different repair parameters on stress intensity factor(SIF), such as the patch length, path thickness and adhesive elastic modulus. The most effective parameter and an optimization of repair operation were achieved by analyzing the SIF using quadratic equation. The finite element results were subjected to the uniaxial tension test. The results show that the patch length is the most effective parameter when the above three factors act at the same times, the failure strength of the repaired plate is increased by 12.1% compared with that of the unrepaired plate, restoring to 90.5% of that of unrepaired plate without cracks.
-
-
期刊类型引用(4)
1. 曹邵文，周国庆，蔡琦琳，叶庆，庞昊强，吴玺. 太阳能电池综述：材料、政策驱动机制及应用前景. 复合材料学报. 2022(05): 1847-1858 . 
本站查看
2. 刘玉梅，温馨，孟翔飞. 基于技术轨道跃迁的突破性技术预测方法及应用研究. 情报杂志. 2021(11): 39-45+15 . 百度学术
3. 王明序，许子傲，葛明桥，高强. 浅色导电纤维的发展及其最新应用. 丝绸. 2020(01): 37-42 . 百度学术
4. 刘璇，李必奎，李明，王鹏波. 铜基碳纳米管复合薄膜载流性能分析. 化工进展. 2018(12): 4782-4790 . 百度学术
其他类型引用(2)
-
计量
- 文章访问数:
- HTML全文浏览量:
- PDF下载量:
- 被引次数: 6
下载:
