Advertisement

Novel measuring approach for damage of viscoelastic material (Part II): Experiment and numerical calculation

  • Zhao Rong-guo  (赵荣国)Email author
Article
  • 49 Downloads

Abstract

The numerical solution procedures for viscoelastic material subjected to deformation and mechanical damage were concerned. The analyses were based upon the constitutive model of viscoelastic material with damage derived from the elasticity recovery correspondence principle and Lemaitre-Chaboche’s damage model. The uniaxial tensile tests for specimens made of polymeric materials were carried out under different strain rates at room temperature, and the stress vs. strain curves were simulated by the constitutive model of viscoelastic material without damage. The results show that the stresses predicted by the model fit with experimental stresses moderately even if damage is not considered when the strain is smaller than a certain strain threshold. But when the strain exceeds this threshold, the damage parameter should be introduced into the constitutive model. It is verified that the constitutive model with damage proposed can more accurately estimate the stress response of a class of viscoelastic particle-reinforced composite, such as solid propellent, than the constitutive model without damage.

Key words

constitutive model viscoelasticity damage numerical calculation 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    SCHAPERY R A. Models for damage growth and fracture in nonlinear viscoelastic particulate composite[C]//Proceedings of the 9th US National Congress Applied Mechanics. New York: ASME, 1982.Google Scholar
  2. [2]
    ZHANG Chun-yuan, ZHANG Wei-min. Elasticity recovery correspondence principles for physically nonlinear viscoelastic problems for a class of materials[J]. International Journal of Solids and Structures, 2001, 38(46/47): 8359–8373.MathSciNetCrossRefGoogle Scholar
  3. [3]
    SCHAPERY R A. Correspondence principles and a generalized J integral for lager deformation and fracture analysis of viscoelastic media[J]. International Journal of Fracture, 1984, 25(3): 195–223.CrossRefGoogle Scholar
  4. [4]
    SCHAPERY R A. A micromechanical model for nonlinear viscoelastic behavior of particle reinforced rubber with distributed damage[J]. Engineering Fracture Mechanics, 1986, 25(5/6): 845–867.CrossRefGoogle Scholar
  5. [5]
    PARK S W, SCHAPERY R A. A viscoelastic constitutive model for particulate composites with growing damage[J]. International Journal of Solids and Structures, 1997, 34(8): 931–947.CrossRefGoogle Scholar
  6. [6]
    HA K, SCHAPERY R A. A three-dimensional viscoelastic constitutive model for particulate composites with growing damage and its experimental validation[J]. International Journal of Solids and Structures, 1998, 35(26–27): 3497–3517.CrossRefGoogle Scholar
  7. [7]
    ZHANG Chun-yuan, ZHANG Wei-min. Elasticity recovery correspondence principles in nonlinear viscoelastic constitutive theory[J]. Natural Science Journal of Xiangtan University, 1998, 20(3): 59–65. (in Chinese)zbMATHGoogle Scholar
  8. [8]
    ZHANG Chun-yuan, ZHANG Wei-min. Solution approach for nonlinear viscoelastic problems for polymer materials[J]. Polymer Materials Science and Enginering, 2002, 18(3): 4–9. (in Chinese)Google Scholar
  9. [9]
    ZHAO Rong-guo, ZHANG Chun-yuan. An instantaneous elastic constitutive relation for nonlinear viscoelastic materials[J]. Journal of Jishou University, 2001, 23(3): 19–22. (in Chinese)Google Scholar
  10. [10]
    DENG Jian-liang, GUO Cui-fang, ZHANG Chun-yuan. A new test program for nonlinear viscoelastic fracture mechanics[C]//Mechanics and Material Engineering for Science and Experiments. New York: Science Press, 2001.Google Scholar

Copyright information

© Central South University Press, Sole distributor outside Mainland China: Springer 2007

Authors and Affiliations

  1. 1.Institute of Fundamental Mechanics and Material EngineeringXiangtan UniversityXiangtanChina
  2. 2.Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of EducationXiangtan UniversityXiangtanChina

Personalised recommendations