高体分SiCp/Al复合材料比阻尼能力仿真分析
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摘要
运用ANSYS软件建立有限元模型,结合胞元法对高体分Si Cp/Al复合材料比阻尼能力进行了研究。结果表明,Si Cp/Al复合材料比阻尼能力值在应变幅值较小时为零,当应变幅值超过临界点后,比阻尼能力值随着应变幅值的增长迅速升高。增强体颗粒形状对Si Cp/Al复合材料比阻尼能力值影响较大,更大的应变和大应变面积会提高比阻尼能力值。Si Cp/Al复合材料模型的平均弹性模量随应变幅值增长而下降的趋势与模型的阻尼能力值随应变幅值增长而增加的趋势表现出相似性。
The damping capacity of high volume fraction Si Cp / Al composites is studied by establishing the finite element model with ANSYS,combined with the unit cell method. The results show that the damping capacity value of Si Cp /Al composites is zero when the strain amplitude is small. However,when strain amplitude is over the critical point,the damping capacity value increases rapidly with the growth of strain amplitude. The reinforcing particle shape has large influence on the damping capacity value of Si Cp / Al composites,and larger strain and more large strain area can improve the damping capacity value. The average elastic modulus of Si Cp / Al composite model declines when strain amplitude grows,which shows the similarity with the tendency that the damping capability of the model increases as the strain amplitude grows.
The damping capacity of high volume fraction Si Cp / Al composites is studied by establishing the finite element model with ANSYS,combined with the unit cell method. The results show that the damping capacity value of Si Cp /Al composites is zero when the strain amplitude is small. However,when strain amplitude is over the critical point,the damping capacity value increases rapidly with the growth of strain amplitude. The reinforcing particle shape has large influence on the damping capacity value of Si Cp / Al composites,and larger strain and more large strain area can improve the damping capacity value. The average elastic modulus of Si Cp / Al composite model declines when strain amplitude grows,which shows the similarity with the tendency that the damping capability of the model increases as the strain amplitude grows.
引文
[1]Jincheng Wang,Gencang Yang.Numerical modeling of the damping capacity of Al/Si C(p)[J].Metallurgical and Materials Transactions A,2003,34(6):1387-1392.
[2]D Xu,S Schmauder.The plastic energy dissipation in metal matrix composites during cyclic loading[J].Computational Materials Science,1999,15(1):96-100.
[3]Jinhai Gu,Xiaonong Zhang,Mingyuan Gu.Effect of surface coating of particulate on the overall damping of particulate-reinforced metal matrix composites[J].Computational Materials Science,2006,36(3):338-344.
[4]Wang Jincheng,Yang Gencang.Finite element micromechanical modeling the damping behaviors of PMMCs at room temperature[J].Computational Materials Science,2001,21(1):9-16.
[5]J Zhang,R J Perez,C R Wong,et al.Effects of secondary phases on the damping behaviour of metals,alloys and metal matrix composites[J].Materials Science and Engineering,1994,13(8):325-389.
[6]J Zhang,R J Perez,E J Lavernia.Effect of Si C and graphite particulates on the damping behavior of metal matrix composites[J].Acta Metallurgica et Materialia,1994,42(2):395-409.
[7]J Zhang,R J Perez,E J Lavernia.Dislocation-induced damping in metal matrix composites[J].Journal of Materials Science,1993,28(3):835-846.
[8]Narasimalu Srikanth,Manoj Gupta.Estimation of elastothermodynamic damping in the Al/Si C system using a finite element approach[J].Acta Materialia,2006,54(17):4553-4563.
[9]康蒙,程小全,张纪奎,等.高体积分数Si C_P/Al复合材料的拉伸、压缩与弯曲特性[J].复合材料学报,2008(3):127-131.
[10]康炘蒙,程小全,郦正能,等.Si C_P/Al复合材料的拉伸性能[J].复合材料学报,2009(4):83-88.
[11]徐东辉,张忠明,王锦程,等.Al/Si C复合材料阻尼特性的数值模拟[J].铸造技术,1998(3):15-17.
[12]M Yadollahpour,S Ziaei Rad,F Karimzadeh,et al.A numerical study on the damping capacity of metal matrix nanocomposites[J].Simulation Modelling Practice and Theory,2011,19(1):337-349.
[13]Jinhai Gu,Xiaonong Zhang,Mingyuan Gu.Analytical modeling of damping at micromechanical level in particulate-reinforced metal matrix composites[J].Materials Letters,2004,58(12-13):1952-1955.
[2]D Xu,S Schmauder.The plastic energy dissipation in metal matrix composites during cyclic loading[J].Computational Materials Science,1999,15(1):96-100.
[3]Jinhai Gu,Xiaonong Zhang,Mingyuan Gu.Effect of surface coating of particulate on the overall damping of particulate-reinforced metal matrix composites[J].Computational Materials Science,2006,36(3):338-344.
[4]Wang Jincheng,Yang Gencang.Finite element micromechanical modeling the damping behaviors of PMMCs at room temperature[J].Computational Materials Science,2001,21(1):9-16.
[5]J Zhang,R J Perez,C R Wong,et al.Effects of secondary phases on the damping behaviour of metals,alloys and metal matrix composites[J].Materials Science and Engineering,1994,13(8):325-389.
[6]J Zhang,R J Perez,E J Lavernia.Effect of Si C and graphite particulates on the damping behavior of metal matrix composites[J].Acta Metallurgica et Materialia,1994,42(2):395-409.
[7]J Zhang,R J Perez,E J Lavernia.Dislocation-induced damping in metal matrix composites[J].Journal of Materials Science,1993,28(3):835-846.
[8]Narasimalu Srikanth,Manoj Gupta.Estimation of elastothermodynamic damping in the Al/Si C system using a finite element approach[J].Acta Materialia,2006,54(17):4553-4563.
[9]康蒙,程小全,张纪奎,等.高体积分数Si C_P/Al复合材料的拉伸、压缩与弯曲特性[J].复合材料学报,2008(3):127-131.
[10]康炘蒙,程小全,郦正能,等.Si C_P/Al复合材料的拉伸性能[J].复合材料学报,2009(4):83-88.
[11]徐东辉,张忠明,王锦程,等.Al/Si C复合材料阻尼特性的数值模拟[J].铸造技术,1998(3):15-17.
[12]M Yadollahpour,S Ziaei Rad,F Karimzadeh,et al.A numerical study on the damping capacity of metal matrix nanocomposites[J].Simulation Modelling Practice and Theory,2011,19(1):337-349.
[13]Jinhai Gu,Xiaonong Zhang,Mingyuan Gu.Analytical modeling of damping at micromechanical level in particulate-reinforced metal matrix composites[J].Materials Letters,2004,58(12-13):1952-1955.