低速冲击下铝蜂窝夹层板的动态响应研究
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摘要
为了研究铝蜂窝夹层板在低速冲击下的动力学响应,通过有限元仿真软件ANSYS/LS-DYNA分析了半球头圆柱低速冲击铝蜂窝夹层板的损伤变形,建立了含蒙皮、蜂窝芯和胶层的铝蜂窝夹层板精细化仿真模型,通过与文献试验结果对比,验证了模型的准确性,并研究了铝蜂窝芯单元尺寸、高度以及金属、碳纤维增强复合材料(CFRP)两种蒙皮材料对蜂窝夹层板冲击响应的影响。结果表明:铝蜂窝芯单元尺寸越大,夹层板的刚度和稳定性越低;芯层高度对吸能的影响较小;胶层对吸能的影响不可忽略;相对于铝蒙皮,CFRP蒙皮铝蜂窝夹层板的吸能效果较好。
In order to study the dynamic response of aluminum honeycomb sandwich plate under low speed impact, the damage deformation of low speed impact aluminum honeycomb sandwich plate with hemispheric head cylinder was analyzed by finite element simulation software ANSYS/LS-DYNA. The fine simulation model of aluminum honeycomb sandwich plate with face sheet, honeycomb core and cohesive layer was established. The accuracy of the model was verified by comparison with the test results in the literature. The impact response of aluminum honeycomb core unit size and height as well as metal and carbon fiber reinforced composite(CFRP) were studied. The results show that the sandwich plate of larger size of aluminum honeycomb core unit has lower stiffness and stability. The core height has little effect on energy absorption. The influence of cohesive layer on energy absorption cannot be neglected. The energy absorption performance of aluminum honeycomb sandwich panel with CFRP face sheet is better than that of aluminum face sheet.
In order to study the dynamic response of aluminum honeycomb sandwich plate under low speed impact, the damage deformation of low speed impact aluminum honeycomb sandwich plate with hemispheric head cylinder was analyzed by finite element simulation software ANSYS/LS-DYNA. The fine simulation model of aluminum honeycomb sandwich plate with face sheet, honeycomb core and cohesive layer was established. The accuracy of the model was verified by comparison with the test results in the literature. The impact response of aluminum honeycomb core unit size and height as well as metal and carbon fiber reinforced composite(CFRP) were studied. The results show that the sandwich plate of larger size of aluminum honeycomb core unit has lower stiffness and stability. The core height has little effect on energy absorption. The influence of cohesive layer on energy absorption cannot be neglected. The energy absorption performance of aluminum honeycomb sandwich panel with CFRP face sheet is better than that of aluminum face sheet.
引文
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[13] 周初阳,潘晋,吴亚锋,等.防船撞蜂窝式复合材料夹层板的耐撞性研究[J].武汉理工大学学报(交通科学与工程版),2016,40(6):1032-1037.
[14] 袁俊俊,李成,铁瑛,等.复合材料胶接修补结构疲劳性能的数值和试验研究[J].玻璃钢/复合材料,2018(5):19-24.
[15] 宋广舒,郑艳萍,赵江铭.复合材料沉头搭接强度与渐进损伤研究[J].玻璃钢/复合材料,2017(4):5-10.
[16] 祝露,刘伟庆,方海,等.腹板增强复合材料夹层板低速冲击试验与有限元分析[J].南京工业大学学报:自然科学版,2017,39(5):126-132.
[2] Sadowski T,B?c J.Effective properties for sandwich plates with aluminium foil honeycomb core and polymer foam filling-Staticanddy-namic response[J].Computational Materials Science,2011,50(4):1269-1275.
[3] Jang W Y,Kyriakides S.On the buckling and crushing of expanded honeycomb[J].International Journal of Mechanical Sciences,2015,91:81-90.
[4] Akkus H,Duzcukoglu H,Sahin O S.Experimental research and use of finite elements method on mechanical behaviors of honeycomb structures assembled with epoxy-based adhesives reinforced with nanoparticles[J].Journal of Mechanical Science & Technology,2017,31(1):165-170.
[5] Manes A,Gilioli A,Sbarufatti C,et al.Experimental and numerical investigations of low velocity impact on sandwich panels[J].Composite Structures,2013,99(5):8-18.
[6] Tao Y,Duan S,Wen W,et al.Enhanced out-of-plane crushing strength and energy absorption of in-plane graded honeycombs[J].Composites Part B Engineering,2017,118.
[7] Zhang D,Jiang D,Fei Q,et al.Experimental and numerical investigation on indentation and energy absorption of a honeycomb sandwich panel under low-velocity impact[J].Finite Elements in Analysis & Design,2016,117-118(C):21-30.
[8] Crupi V,Kara E,Epasto G,et al.Theoretical and experimental analysis for the impact response of glass fibre reinforced aluminium honeycomb sandwiches[J].Journal of Sandwich Structures & Materials,2016,20:1-28.
[9] Crupi V,Epasto G,Guglielmino E.Collapse modes in aluminium honeycomb sandwich panels under bending and impact loading[J].International Journal of Impact Engineering,2012,43(5):6-15.
[10] Chen Y,Hou S,Fu K,et al.Low-velocity impact response of com-posite sandwich structures:Modelling and experiment[J].Composite Structures,2017,168:322-334.
[11] Ivaňez I,Sanchez-Saez S.Numerical modelling of the low-velocity impact response of composite sandwich beams with honeycomb core[J].Composite Structures,2013,106(12):716-723.
[12] Ugˇur L,Duzcukoglu H,Sahin O S,et al.Investigation of impact force on aluminium honeycomb structures by finite element analysis[J].Journal of Sandwich Structures & Materials,2017.
[13] 周初阳,潘晋,吴亚锋,等.防船撞蜂窝式复合材料夹层板的耐撞性研究[J].武汉理工大学学报(交通科学与工程版),2016,40(6):1032-1037.
[14] 袁俊俊,李成,铁瑛,等.复合材料胶接修补结构疲劳性能的数值和试验研究[J].玻璃钢/复合材料,2018(5):19-24.
[15] 宋广舒,郑艳萍,赵江铭.复合材料沉头搭接强度与渐进损伤研究[J].玻璃钢/复合材料,2017(4):5-10.
[16] 祝露,刘伟庆,方海,等.腹板增强复合材料夹层板低速冲击试验与有限元分析[J].南京工业大学学报:自然科学版,2017,39(5):126-132.