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Numerical analysis of material properties in deformation of near hemispherical shells

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Abstract

In this paper, the effects of hardening exponent, yield strength and elastic modulus on the deformability of near hemispherical shells are investigated by means of finite element method and orthogonal experiment design. The largest eccentric angle during the deformation process and thickness reduction after the deformation are introduced to estimate the deformability quantitatively according to the deformation characteristics of near hemispherical shells. The results indicate that the hardening exponent is the most influential parameter, followed by elastic modulus and yield strength. The shell exhibits good deformability when the hardening exponent and elastic modulus are in the range of 0.1–0.125 and 70–108 GPa, respectively.

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Authors and Affiliations

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

    Xiao Zhao  (赵 晓), Hui Chang  (常 辉), Bin Tang  (唐 斌), Xu-hu Zhang  (张绪虎), Hong-chao Kou  (窦宏超) & Jin-shan Li  (李金山)

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  1. Xiao Zhao  (赵 晓)
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  2. Hui Chang  (常 辉)
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  3. Bin Tang  (唐 斌)
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  4. Xu-hu Zhang  (张绪虎)
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  5. Hong-chao Kou  (窦宏超)
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  6. Jin-shan Li  (李金山)
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Corresponding author

Correspondence to Hui Chang  (常 辉).

Additional information

Foundation item: the National Natural Science Foundation of China (No. 50805121), and the National Basic Research Program (973) of China (No. 2007CB13802)

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Zhao, X., Chang, H., Tang, B. et al. Numerical analysis of material properties in deformation of near hemispherical shells. J. Shanghai Jiaotong Univ. (Sci.) 16, 209–213 (2011). https://doi.org/10.1007/s12204-011-1123-6

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  • DOI: https://doi.org/10.1007/s12204-011-1123-6

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