A phenomenological 1D model describing main and secondary effects of stress-induced solid phase transformations.

Ferdinando Auricchio ,  Alessandro Reali ,  Ulisse Stefanelli 

Dipartimento di Meccanica Strutturale, Universita' di Pavia, Via Ferrata 1, Pavia 27100, Italy
IMATI, Pavia 27100, Italy

Abstract

The diffusion and the use of shape memory alloys (SMAs) in many different engineering applications is resulting in an always increasing research effort toward a reliable and complete modeling of their macroscopic behavior.
Starting from some robust phenomenological models proposed in the recent past and capable of describing main SMA macroscopic effects [1,2], we present here a more flexible model, able to include many other well-known SMA effects, such as tension-compression asymmetric behaviors (e.g. asymmetric yield stress level, loop width and length) and elastic properties depending on the reached transformation strain level.
Several numerical experiments are performed in order to prove the capabilities of the model.
We finally show how this model can be modified in order to obtain a good tool for describing a new, very promising, class of shape memory materials: the ferromagnetic SMAs.

References:
1. F. Auricchio, L. Petrini, "A three-dimensional model describing stress-temperature induced solid phase transformations: solution algorithm and boundary value problems", International Journal for Numerical Methods in Engineering, 61: 807-836 (2004).
2. F. Auricchio, A. Reali, U. Stefanelli, "A three-dimensional model describing stress-induced solid phase transformation with permanent inelasticity", International Journal of Plasticity, 23: 207-226 (2007).

Legal notice
  • Legal notice:

    Copyright (c) Pielaszek Research, all rights reserved.
    The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
    In every case, proper references including Author(s) name(s) and URL of this webpage: http://science24.com/paper/11276 must be provided.

 

Related papers
  1. Modeling and Finite element simulation

Presentation: Oral at E-MRS Fall Meeting 2007, Symposium E, by Ferdinando Auricchio
See On-line Journal of E-MRS Fall Meeting 2007

Submitted: 2007-05-11 12:06
Revised:   2009-06-07 00:44
Google
 
Web science24.com
© 1998-2021 pielaszek research, all rights reserved Powered by the Conference Engine