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RESEARCH ON THE NANOMETER DENDRITIC FIBERS IN DORBEETLE CUTICLE

BIN CHEN

Department of Engineering Mechanics, Chongqing University, Chongqing 400044, P. R. China

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XIANG-HE PENG

Department of Engineering Mechanics, Chongqing University, Chongqing 400044, P. R. China

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JING-HONG FAN

Department of Engineering Mechanics, Chongqing University, Chongqing 400044, P. R. China

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, and

WAN-LU WANG

Department of Applied Physics, Chongqing University, Chongqing 400044, P. R. China

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https://doi.org/10.1142/S0217979205029067Cited by:2 (Source: Crossref)

Abstract

The SEM observation on the cuticle of dorbeetle shows that the cuticle is composed of chitin fibers and protein matrix. The diameter of chitin fibers is from several to several-hundred nanometers. The observation also shows that there is a kind of dendritic fiber in the cuticle. The maximum pullout force of the dendritic fiber is analyzed based on its representative model. The analysis shows that the dendritic fibers can markedly increase the pullout force of the fibers and improve the fracture toughness of the cuticle.

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