Determination and analysis on the yield strength and compressive strength of lotus roots
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    Abstract:

    In order to analyze the loading variation of lotus roots during the process of being compressed and the variation rules of compressive strength of different lotus rhizome nodes under different loading rates,different lotus rhizome nodes of Elian 3537 were selected as the research objects. The pressure displacement curves of different lotus rhizome nodes under different compressive rates were obtained from compression tests by using the texture analyzer, and the corresponding yield limit and failure limit were obtained,too. The result showed that the yield limit and failure limit increased with the rise of the compressive rates. When compressing rate was the same, the 3rd of the lotus rhizome nodes could sustain the maximum yield limit, followed by the 2nd, and the the 1st the minimum. As for the failure limit of the lotus rhizome nodes, the 2nd has the maximum one, followed by the 3rd, and the 1st successively. Two-factor variance analysis with duplication was used to analyze the yield limit and the failure limit, the results showed that both the compression rate and the lotus rhizome nodes had significant effect on the compressive strength of the lotus root surface. Meanwhile, the interaction between them had no significant effect on the compressive strength of lotus root surface.

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郭洋民,夏俊芳,肖科星,桂鹏. Determination and analysis on the yield strength and compressive strength of lotus roots[J]. Jorunal of Huazhong Agricultural University,2015,34(1):148-151.

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  • Received:
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  • Online: December 04,2014
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