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蜂窝铝材料的铸造工艺和压缩性能研究
Study on Casting Process and Compressive Property for Aluminum Honeycomb
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- DOI:
- 作者:
- 李开妍 王晗 郝海
LI Kaiyan;WANG Han;HAO Hai
- 作者单位:
- 大连理工大学材料科学与工程学院
Material Science and Engineering School,Dalian University of Technology,Dalian 116024,China
- 关键词:
- 蜂窝铝 孔径尺寸 数值模拟 压缩性能
aluminum honeycomb pore size numerical simulation compressive property
- 摘要:
- 通过数值模拟的方法对孔径尺寸分别为10、8、6 mm的3种蜂窝铝试样进行铸造工艺和压缩性能的模拟分析,并通过压缩性能测试对模拟结果进行验证。采用ProCAST软件对蜂窝铝的浇注过程进行数值模拟分析,对铸造工艺进行优化改进。采用ABAQUS软件分析孔径尺寸对蜂窝铝材料压缩性能的影响,并通过实验加以验证。结果表明:蜂窝铝材料压缩曲线共包括3个部分:弹性变形区、平台区和密实化区。随着孔径尺寸的减小,蜂窝铝材料抗压性能增强。孔径尺寸越大,蜂窝铝材料在弹性变形区和受力平台区停留的时间越长。This study simulated the casting process and the compressive performance of three aluminum honeycomb samples with pore sizes of 10,8 and 6 mm were simulated,and the simulation results were validated by experimental data.ProCAST software was used to numerically simulate the filling and solidification process of aluminum honeycomb,and the casting process was optimized and improved by analyzing simulation results.The effect of pore size on the compressive performance of aluminum honeycomb was analyzed by ABAQUS software with reliable results under experimental verification.The results show that the compression curve of aluminum honeycomb includes three parts:elastic deformation zone,platform zone and compaction zone.The compressive load would increase with the decrease of the pore size and the increase of the relative density.And duration of elastic deformation zone and platform zone would increase in pace with the raising of the pore size.