45~#钢/尼龙夹层板准静态压缩本构方程实验
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摘要
利用万能试验机对45~#钢/尼龙夹层板进行了准静态压缩实验,得到了关于不同厚度比(面板总厚度与芯材厚度的比值)的45~#钢/尼龙夹层板的应力-应变曲线,实验结果表明在准静态压缩实验中,45~#钢/尼龙夹层板的屈服强度随厚度比的增大而增加,但不同厚度比的夹层板的应力应变曲线形态相似。通过对实验数据的分析、拟合,构建了计及厚度比影响的钢/尼龙夹层板的准静态压缩本构模型。实验证明,该模型可以准确描述45~#钢/尼龙夹层板的准静态压缩本构关系,可用于预测该类夹层板在不同厚度比下的准静态压缩力学性能,在船舶领域具有较好的工程应用价值。
By universal testing machine,stress strain curves of different thickness ratio of 45steel/nylon sandwich plate were obtained.The experimental results show that in the quasi static compression experiment,the yield strength of 45steel/nylon sandwich plate increases as the increase of the thickness ratio,but the shape of the stress-strain curves of different thickness ratio is similar.Through analyzing and fitting the experimental data,considering the influence of thickness ratio on the results,aquasi-static compression constitutive model for different thickness ratio of 45steel/nylon of sandwich plate was set up.Experiments show that the model can accurately describe quasi-static compression constitutive relation of 45steel/nylon of sandwich plate,and it can be used to predict the sandwich plate under different thickness ratio of quasi static compression mechanical properties and
has good value of engineering application in shipbuilding.
By universal testing machine,stress strain curves of different thickness ratio of 45steel/nylon sandwich plate were obtained.The experimental results show that in the quasi static compression experiment,the yield strength of 45steel/nylon sandwich plate increases as the increase of the thickness ratio,but the shape of the stress-strain curves of different thickness ratio is similar.Through analyzing and fitting the experimental data,considering the influence of thickness ratio on the results,aquasi-static compression constitutive model for different thickness ratio of 45steel/nylon of sandwich plate was set up.Experiments show that the model can accurately describe quasi-static compression constitutive relation of 45steel/nylon of sandwich plate,and it can be used to predict the sandwich plate under different thickness ratio of quasi static compression mechanical properties and
has good value of engineering application in shipbuilding.
引文
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[2]NG C F,HUI C K.Low frequency sound insulation using stiffness control with honeycomb panels[J].Applied Acoustics,2007,69(4):293-301.
[3]HONG C,ELLIOTT S J.Local feedback control of light honeycomb panels[J].Journal of the Acoustical Society of America,2007,121:222-233.
[4]HUANG W C,NG C F.Sound insulation improvement using honeycomb sandwich panels[J].Applied Acoustics,1998,53(1/2/3):163-177.
[5]WANG S C,DENG Z X,SHEN W D.Sound transmission loss characteristics of unbounded orthotropic sandwich panels in bending vibration considering transverse shear deformation[J].Composite Structures,2010,92:2885-2889.
[6]RENJI K,NAIR P S.Modal density of composite honeycomb sandwich panel[J].Journal of Sound and Vibration,1996,195(5):687-699.
[7]王展光,单建,何德坪.金字塔栅格夹心夹层板动力响应分析[J].力学季刊,2006,27(4):707-713.
[8]XIN F X,LU T J,CHEN C Q.Sound transmission through simply supported finite double-panel partitions with enclosed air cavity[J].Journal of Vibration and Acoustics,2010,132:011008.
[9]WANG J,LU T J,WOODHOUSE J,et al.Sound transmission through lightweight double-leaf partitions:theoretical modeling[J].Journal of Sound and Vibration,2005,286:817-847.
[10]XIN F X,LU T J.Analytical modeling of fluid loaded orthogonally rib-stiffened sandwich structures:sound transmission[J].Journal of the Mechanics and Physics of Solids,2010,58:1374-1396.
[11]RUZZENE M.Vibration and sound radiation of sandwich beams with honeycomb truss core[J].Journal of Sound and Vibration,2004,277:741-763.
[12]NILSSON E,NILSSON A C.Prediction and measurement of some dynamic properties of sandwich structures with honeycomb and foam cores[J].Journal of Sound and Vibration,2002,251(3):409-430.
[13]ZHOU R,CROCKER M J.Sound transmission loss of foam-filled honeycomb sandwich panels using statistical energy analysis and theoretical and measured dynamic properties[J].Journal of Sound and Vibration,2010,329:673-686.
[14]张广成,赵景利.蜂窝夹层结构复合材料的力学性能研究[J].机械科学与技术,2003,22(3):280-282.
[15]周祝林,徐玉珍,孙佩琼.复合材料平板及蜂窝芯综合性能测试与分析[J].纤维复合材料,2002(4):17-20.
[16]刘博,夏国军.对圆锥破碎机“飞车”原因及预防措施的探讨[J].科技与企业,2014(2):272-272.
[17]戴亚春,陈岚崴,姜银方,等.尼龙管钳嵌件强化及应力释放槽的优化设计[J].工具技术,2014(3):51-54.