Simulation and Analysis of the Wheat Stem Lodging

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Abstract:

In order to find the change characteristics of wheat stem lodging under the rectangle wind load, wheat stem models were set up which include 5 inter-nodes, and then the process of wheat stem lodging were simulated by finite element software ANSYS/LS-DYNA. The simulation results show that the lodging is related to impulse of the rectangle wind load. The smaller the impulse is, the more difficultly the stem lodging happen. Along the entire stem axis, the maximum stress value occurs in the ovalization area, the stress values are smaller in the other area. The study results provide some references for the research on high yield cultivation and lodging resistance of wheat and plant stem processing.

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Periodical:

Advanced Materials Research (Volumes 652-654)

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1416-1419

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Niklas KJ. Modes of Mechanical Failure of Hollow, Septate Stems. Annals of botany, 1998, 8l: 11-21.

DOI: 10.1006/anbo.1997.0505

Google Scholar

[2] Niklas KJ. Responses of Hollow, Septate Stems to Vibrations: Biomechanical Evidence that Nodes Can Act Mechanically Spring-like[J]. Joints. Annals of Botany, 1997, 80: 437-448.

DOI: 10.1006/anbo.1997.0463

Google Scholar

[3] Hamman D K, Williamson R L, Steffler E D,et a1. Structural Analysis of Wheat Stems.Applied Biochemistry and Biotechnology. 2005, 121: 71-80.

Google Scholar

[4] Hu Ting, Jiao Qunying, Fu Zhiyi. Experimental study on the bending mechanical properties of wheat stalk[J]. Transactions of the CSAE, 2006, 22(10): 31-35.

Google Scholar

[5] Hu Ting, Fu Zhiyi. Numerical Analysis on Local Buckling of Hollow Plant[J]. Journal of Agricultural Mechanization Research, 2005, 3: 100-102.

Google Scholar

[6] Hu Ting, Jiao Qunying, Fu Zhiyi. Composite Mechanics Model of Wheat Stalk under Bending[J]. CHINESE JOURNAL OF APPL IED MECHANICS, 2007, 24(1): 279-283.

Google Scholar

[7] Sun Yiyuan, YU Dengyuan. Agricultural Biomechanics and Agricultural Biological Electromagnetism[M]. Beijing, China Agriculture Press, 1996, 140-146.

Google Scholar

[8] LI Lite. Physical Properties of Foods [M]. Beijing, China Agriculture Press, 1998, 36-42.

Google Scholar