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On the behaviour characterization of metallic cellular materials under impact loading 被引量：4

On the behaviour characterization of metallic cellular materials under impact loading
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摘要 This paper reviews the common mechanical features of the metallic cellular material under impact loading as well as the characterization methods of such behaviours. The main focus is on the innovations of various testing methods at impact loading rates.Following aspects were discussed in details.（1） The use of soft nylon Hopkinson/Kolsky bar for an enhanced measuring accuracy in order to assess if there is a strength enhancement or not for this class of cellular materials under moderate impact loading;（2） The use of digital image correlations to determine the strain fields during the tests to confirm the existence of a pseudo-shock wave propagation inside the cellular material under high speed impact： （3） The use of new combined shear compression device to determine the loading envelop of cellular materials under impact multiaxial loadings. This paper reviews the common mechanical features of the metallic cellular material under impact loading as well as the characterization methods of such behaviours. The main focus is on the innovations of various testing methods at impact loading rates.Following aspects were discussed in details.（1） The use of soft nylon Hopkinson/Kolsky bar for an enhanced measuring accuracy in order to assess if there is a strength enhancement or not for this class of cellular materials under moderate impact loading;（2） The use of digital image correlations to determine the strain fields during the tests to confirm the existence of a pseudo-shock wave propagation inside the cellular material under high speed impact： （3） The use of new combined shear compression device to determine the loading envelop of cellular materials under impact multiaxial loadings.
作者 Dai-Ning Fang Yu-Long Li Han Zhao
机构地区 College of Engineering School of Aeronautics Laboratoire de Mecanique et Technologie
出处 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2010年第6期837-846,共10页 力学学报（英文版）
关键词 Foam HONEYCOMB LATTICE Hopkinson bar Rate sensitivity Foam Honeycomb Lattice Hopkinson bar Rate sensitivity
分类号 TU599 [建筑科学—建筑技术科学] TB383 [一般工业技术—材料科学与工程]
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参考文献53

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  • 2Fan, H., Fang, D.: Anisotropic mechanical properties of lattice grid composites. J. Compos. Mater. 42(23), 2445-2460 (2008).
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  • 4Zhao, H., Elnasri, I., Girard, Y.: Perforation ofaluminium foam core sandwich panels under impact loading-an experimental study. Int. J. Impact Eng. 34, 1246-1257 (2007).
  • 5Hou, B., Ono, A., Abdennadher, S., et al.: Impact behavior of honeycombs under combined shear-compression, Part I Experiments. Int. J. Solids Struct. (2010). doi: 10.1016/j.ijsolstr. 2010.11.005 (in press).
  • 6Zeng, H.B., Pattofatto, S., Zhao, H., et al.: Perforation of sandwich plates with graded hollow sphere cores under impact loading. Int. J. Impact Eng. 37, 1083-1091 (2010).
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  • 8Cui, X., Zhang, Y., Zhao, H., et al.: Stress concentration in two-dimensional lattices with imperfections. Acta Mech. (2010). doi: 10.1007/s00707-010-0354-1.
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Acta Mechanica Sinica
2010年 第6期

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