吉林大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (增刊1): 433-436.

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One-dimensional differential constitutive equation and viscoelastic model of elytra of the dung beetle (Copris ochus Motschulsky)

JIA Hong-lei1, WANG Yue-ming1, ZHANG Zhi-jun2, SUN Ji-yu1   

  1. 1. College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China;
    2. Department of Basic, Air Force Aviation University, Changchun 130012, China
  • Received:2012-05-08 Online:2012-09-01 Published:2012-09-01

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Abstract: Nanoindentation testing was used to acquire the anisotropic properties of the elytra of dung beetle (Copris ochus Motschulsky) through a single indentation. The viscoelastic properties of elytra of dung beetle were analyzed by nanoindentation. A unidimensional constitutive equation was established for elytra of dung beetle based on its analysis of viscoelastic properties. Then the differential equation expressing the viscoelastic model was established and followed with investigation of relaxation characteristics. The model can be used in designing bionic composite materials and films with advanced mechanical properties.

Key words: biological engineering, elytra, nanoindentation, constitutive equation, viscoelastic model

CLC Number: 

  • Q811.6
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