Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (4): 9-12.

• Mechanics • Previous Articles     Next Articles

Constitutive Law of Hardening Rubber-Like M aterial with Large Strain

Liu Feng1  Zhu Yan-feng1  Li Li-juan1  Huang Xiao-qing2   

  1. 1.Faculty of Construction Engineering,Guangdong Univ.of Ttech.,Guangzhou 510006,Guangdong,China;2.College of Traffic and Communications,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2005-04-13 Online:2006-04-25 Published:2006-04-25
  • Contact: 刘锋(1965-)，男，教授，博士，主要从事计算力学研究. E-mail:fliu@gdut.edu.en
  • About author:刘锋(1965-)，男，教授，博士，主要从事计算力学研究.
  • Supported by:

    广东省自然科学基金资助项目(010025，032487)；教育部留学回国人员科研启动基金资助项目(2005—55)

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Abstract:

Rubber-like material is a typical kind of hyperelastic material with good elasticity and stretching capaci-ty.It displays stress-strain hardening or softening when subjected to large strain.The constructive law of rubber-like material iS complicated and few experimental researches have been carried out on it.The hardening phenome-non of rubber-like material is experimentally and theoretically investigated in this paper,and a new strain-energy function is put forward to describe the constitutive law of the material.The corresponding constitutive parameters of the material are then measured and verified by experiments.The results indicate that the proposed strain·energy function accord well with the hardening phenomenon of rubber-like material and can be used as a theoretical basis for the investigation into the constitutive law of hardening material.

Key words: rubber-like material, large strain, hardening, constitutive law