上海大学学报(自然科学版) ›› 2009, Vol. 15 ›› Issue (6): 634-636.

• 数理化科学 • 上一篇    下一篇

非均匀湿热黏弹性拟静态问题的对应原理

张能辉,覃小军   

  1. (1.上海大学 上海市应用数学和力学研究所,上海 200072; 2.上海大学 理学院,上海 200444)
  • 收稿日期:2009-09-10 出版日期:2009-12-28 发布日期:2009-12-28
  • 通讯作者: 张能辉(1970~),男,教授,博士,研究方向为黏弹性理论及其应用、非线性动力学、生物芯片系统纳米力学. Email:nhzhang@shu.edu.cn
  • 作者简介:张能辉(1970~),男,教授,博士,研究方向为黏弹性理论及其应用、非线性动力学、生物芯片系统纳米力学. Email:nhzhang@shu.edu.cn
  • 基金资助:

    国家自然科学基金重大项目(90816001);上海市重点学科建设资助项目(S30106)

Correspondence Principle for Nonhomogeneous Hygro-thermo-viscoelastic  Quasi-static Problems

ZHANG Neng-hui1,2,QIN Xiao-jun1   

  1. (1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China;
    2. College of Sciences, Shanghai University, Shanghai 200444, China)
  • Received:2009-09-10 Online:2009-12-28 Published:2009-12-28

摘要:

采用Christensen各向同性热黏弹性本构关系,考虑湿气和温度变化对热流变简单材料折减时间函数的影响,利用Laplace变换法,证明当材料松弛函数具有时空可分离形式,且在给定的温度场和湿气场仅与时间变量有关时,各向同性、非均匀湿热黏弹性拟静态问题的对应原理仍然成立.

关键词: 非均匀热弹性;非均匀湿热黏弹性;拟静态问题;对应原理;折减时间

Abstract:

The Christensen’s isotropic thermoviscoelastic constitutive relation is adopted to consider influence of moisture and thermal changes on the reduced time for simple thermorheological materials. The Laplace transform method is used to show that the correspondence principle for isotropic and nonhomogeneous hygro-thermo-viscoelastic quasi-static problems still holds when relaxation functions have separable forms in space and time, and the given temperature and moisture fields are only related to time variable.

Key words: nonhomogeneous thermo-elasticity; nonhomogeneous hygro-thermo-viscoelasticity; quasi-static problem;correspondence principle; reduced time

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