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Acta Mechanica Solida Sinica

, Volume 21, Issue 1, pp 44–50 | Cite as

Transversal inertial effect on relaxation/retardation time of cement mortar under harmonic wave

  • Jue Zhu
  • Yonghui Cao
  • Jiankang Chen
Article

Abstract

Under dynamic loading, the constitutive relation of the cement mortar will be significantly affected by the transversal inertial effect of specimens with large diameters. In this paper, one-dimensional theoretical analysis is carried out to determine the transversal inertial effect on the relaxation/retardation time of the cement mortar under the harmonic wave. Relaxation time or retardation time is obtained by means of the wave velocity, attenuation coefficient and the frequency of the harmonic wave. Thus, the transversal inertial effect on the relaxation time from Maxwell model, as well as on retardation time from Voigt model is analyzed. The results show that the transversal inertial effect may lead to the increase of the relaxation time, but induce the decrease of the retardation time. Those should be taken into account when eliminating the transversal inertial effect in applications.

Key words

cement mortar harmonic wave viscoelastic model relaxation/retardation time 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2008

Authors and Affiliations

  1. 1.Mechanics and Materials Science Research CenterNingbo UniversityNingboChina

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