吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (3): 872-877.doi: 10.13229/j.cnki.jdxbgxb201503027

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Quasi-static axial tensile mechanical characteristics of silkworm's anterior silk gland

TIAN Gui-zhong1, LIU Zhi-ling1, ZHOU Hong-gen1, SONG Jiang-chao2, ZHU Tao1   

  1. 1.School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    2.Serictdtural Research lnsthute, Chinese Academy of Agrictdtural Sciences, Zhenjiang 212018, China
  • Received:2013-08-17 Online:2015-05-01 Published:2015-05-01

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Abstract: In order to study the fabrication method and fluidic flow characteristics of bio-micro-channel, a novel measuring method of quasi-static axial tension (QSAT) is proposed for the compound of biological soft tissue with the characteristics of silkworm's anterior silk gland (SASG). The anterior silk gland of fifth instar silkworm is taken as the test material. The experiment of QSAT is conducted using electronic single fiber machine. The fracture morphology of the sample is observed by SEM. The QSAT performances of SASG and fibrosis process of silk protein solution, called as silk fibrosis, are measured. Using hyper-elastic Ogden model, the QSAT mechanical constitutive equations of SASG and silk fiber are established. Based on the model, the fitting curves of experiment data are obtained by ABAQUS with the correlation coefficient of above 98%. Results show that hyper-elastic mechanical property of both SASG and silk fiber is excellent, meanwhile silk fiber outperforms SASG.

Key words: engineering bionics, bionic micro-channel, quasi-static axial tension, silkworm's anterior silk gland, micro-fluidic system, biomechanics

CLC Number: 

  • TB17
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