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On the tension necking of copper single crystal specimen under slip deformation mechanism

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Abstract

The tension necking of FCC copper single crystal specimen with a square cross section was analyzed under the slip deformation mechanism. The actual clamp manner of the specimen was modeled by setting correlative boundary condition, and the small angle deflection between tension loading axis and crystallography axis [100] was taken into account. The finite deformation numerical analysis of three-dimensional necking deformation for the specimen was performed by applying crystal plasticity theory associated with a numerical algorithm suggested by the first author. According to the comparison with experimental observation, the fact was confirmed that the numerical results could describe the loading elongation curve of the copper single crystal specimen under large strain tension reasonably, and the method could be used to investigate the necking characteristic in neck shape and the effect due to the small angle deflection. Further, the investigation into the influence of specimen cross-section shape on necking was also performed; the results on mechanical response and neck profile evolution obtained through modeling of cylindrical specimen were compared with those obtained with square cross-section specimen.

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Authors and Affiliations

  1. College of Civil and Architectural Engineering, Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning, 530004, China

    Zhang KeShi

  2. Department of Engineering Mechanics, Northwestern Polytechnical University, Xi’an, 710072, China

    Geng XiaoLiang

  3. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an, 710072, China

    Li JinShan & Hu Rui

Authors
  1. Zhang KeShi
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  2. Geng XiaoLiang
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  3. Li JinShan
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  4. Hu Rui
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Corresponding author

Correspondence to Zhang KeShi.

Additional information

Supported by the National Natural Science Foundation of China (Grant Nos. 10472092 and 10662001) and the Aviation Science Foundation of China (Grant No. 04C53027)

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Zhang, K., Geng, X., Li, J. et al. On the tension necking of copper single crystal specimen under slip deformation mechanism. SCI CHINA SER E 50, 308–318 (2007). https://doi.org/10.1007/s11431-007-0038-9

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  • DOI: https://doi.org/10.1007/s11431-007-0038-9

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