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Surface Effect on the Nanowire Forest Indentation

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Strength of Materials Aims and scope

The surface effect on the mechanical behavior of a nanowire forest indentation is theoretically studied. The use of a large-radius spherical indenter revealed a complex deformation pattern of the nanowire forest. The nanowire forest compression, buckling and postbuckling were analyzed. The effect of surface and packing density on the nanowire forest behavior with the indentation depth is discussed. The results show that the surface effect is of importance for in-depth hardness. The analysis is instrumental in measuring the mechanical properties of the nanowire forest and in designing nanowire-forest devices for various applications.

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Acknowledgments

This study was performed within framework of Project No.11502197 supported by the National Natural Science Foundation of China, Project No. 2016JQ1032 supported by the Science and Technology Department of Shaanxi Province of China, Project No.16JK1504 and Post-Doctoral Program supported by the Education Department of Shaanxi Province of China.

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Authors and Affiliations

  1. Department of Mechanics, Xi’an University of Science and Technology, Xi’an, China

    F. Yang

  2. Department of Engineering Mechanics, Xi’an Jiaotong University, Xi’an, China

    F. Yang

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  1. F. Yang
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Correspondence to F. Yang.

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Translated from Problemy Prochnosti, No. 1, pp. 130 – 137, January – February, 2018.

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Yang, F. Surface Effect on the Nanowire Forest Indentation. Strength Mater 50, 116–123 (2018). https://doi.org/10.1007/s11223-018-9949-x

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  • DOI: https://doi.org/10.1007/s11223-018-9949-x

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