内变量和伪弹性的热力学模型

霍永忠

内变量和伪弹性的热力学模型

霍永忠

美国内布拉斯加—林肯大学, 材料研究分析中心, 工程力学系

计量
- 文章访问数: 2356
- HTML全文浏览量: 164
- PDF下载量: 441
- 被引次数: 0
出版历程
- 收稿日期: 1996-02-09
- 刊出日期: 1996-10-15

Internal Variables and Thermodynamic Modeling of Pseudoelasticity

Huo Yongzhong

Department of Engineering Mechanics, Center for Materials Research and Analysis, Universify of Nebraska-Lincoln, Lincoln, Nebraska 68588-0347, U.S.A.

摘要

摘要: 在固体相变中经常出现滞后,需要内变量以描述滞后现象。对记忆合金单晶拉伸实验,所需内变量是奥氏体和马氏体区域的界面数。本文首先讨论有关的实验结果,然后给出以此内变量为基础的热力学模型。
- 模型 /
- 热力学 /
- 伪弹性 /
- 相变 /
- 滞后 /
- 记忆合金
Abstract: Solid-solid phase transitions often exhibt hysteresis and to describe the hysteretic behavior we need infernal variables. For shape memory single crystal under uni-axial tensile loading the internal variable has been identified experimentally as the number of interfaces between the austenitic and the martensitic phase regions. Experimental evidences are discussed here. Thermodynamical modelling based ont he internal variable is presented.
- modelling /
- thermodynamics /
- pseudoelasticity /
- phase transition /
- hysteresis /
- memory alloy

HTML全文

参考文献(12)

[1]	H.Funakubo,Shape Memory Alloys,Gordon and Breach Sci.Publ.,London (1987).
[2]	J.W.Christian,The Theory of Transformation in Metal and Alloys,Pergamon Press Oxford (1965).
[3]	Z.Nishiyama,Martensitic Transformations,Acad.Press.NY (1978).
[4]	I.Müller and H.Xu,On the pseudo-elastic hysteresis,Acta Metal,39 (1991),263-271.
[5]	S.Fu,Y.-Z.Huo and I.Müller,Thermodynamics of pseudoelasticity an analytical approach,Acta Mech,99 (1993),1-19.
[6]	S.Fu,I.Müller and H.Xu,Experimental and theoretical investigation of the pseudoelastic hysteresis,Proc.MRS Fall Meerirrg,Boston (1991).
[7]	H.Xu,Experimentale and Theoritische Untersuchung der Hysteresis in Form-Gedachtnis Legierung,Dissertation,TU Berlin (1992).
[8]	M.Bornert and I.Müller,Temperature dependence of hysteresis in pseudo-elasticity,Proc.Cone on Free Boundary Problems,Oberwolfach (1989).
[9]	Y.Z.Huo and I.Müller,Thermodynamics of pseudoelasticity-agraphic approach,Models of Hysteresis,edited by A.Visintin,Pitman Research Notes in Mathematics,Vol.286,Longman,Harlow (1993).
[10]	M.Achenbach,Simulation des Spanungs-Dehnungs-Temperatur Veerhaltens von Legierungen mit Form-Gedachtnis Vermogen Dissertation,TU Berlin(1980).
[11]	Y.Z.Huo and I.Müller,Nonequilibrium therriaodynamics of pseudoelastieity,Continum Mechanics and Thermodynamics,5 (1993),163-204.
[12]	Fu Senlin,Huo Yongzhong and Ingo Müller,Instability in stress-induced martensitic transformation,in Proceedings.of the Second International Conference on Nonlinear Mechanics,August 23-26,1993,edited by Chien Weizang et al.,Beijing (1993).