Affiliation:
1. Department of Engineering Mechanics, Beijing University of Technology, Beijing 100124, P. R. China
Abstract
The mechanical properties of eggshell membrane (ESM) are comparable to those of human patellar tendon or skin. This paper, based on static and dynamic nanoindentation technique, studied the time-dependent behavior, i.e., creep and relaxation of the ESM. The effect of loading level, loading rate and holding time on viscoelastic behavior were discussed by using the static measurement method of nanoindentation. The storage modulus, loss modulus and loss factor were obtained as a function of frequency. It was found that the outer membrane (OM) exhibits more apparent relaxation properties and stronger capacity to resist creep deformation than that of the inner membrane (IM). In addition, the loss factor of the IM is larger than that of the OM which caused a larger viscous damping of IM. This work can contribute to the bioinspired applications of ESM.
Funder
the National Natural Science Foundation of China
General Project of Beijing Municipal Education Commission science and technology
the Rixin Fund of Beijing University of Technology
Publisher
World Scientific Pub Co Pte Lt
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Cited by
1 articles.
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