THERMODYNAMICS OF PSEUDOELASTICITY - AN ANALYTICAL APPROACH

被引：72

作者：

FU, S

HUO, Y

MULLER, I

机构：

[1] Institut für Thermodynamik und Reaktionstechnik, TU Berlin, Berlin 12, D-1000

来源：

ACTA MECHANICA | 1993年 / 99卷 / 1-4期

关键词：

D O I：

10.1007/BF01177231

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The phenomenon of pseudo-elasticity is connected with a phase transition. Its description requires a non-convex free energy and a non-monotone load-deformation curve. Realistic functions like that are too complicated to permit the analytic calculation of phase equilibria and the evaluation of stability properties of a phase mixture. One has to resort to graphical methods, see [1], or to numerical calculations. However, here we approximate the non-convex free energy by a train of two intersecting parabolae. This simplification enables us to carry out all calculation explicitly and it seems to describe - at least qualitatively - most phenomena observed in pseudoelasticity.

引用

页码：1 / 19

页数：19