Image-based dynamic modeling of phase transformation in hybrid SMA

Muhammad A. Qidwai; Virginia G. DeGiorgi

doi:10.1117/12.475011

11 July 2002 Image-based dynamic modeling of phase transformation in hybrid SMA

Muhammad A. Qidwai, Virginia G. DeGiorgi

Proceedings Volume 4699, Smart Structures and Materials 2002: Active Materials: Behavior and Mechanics; (2002) https://doi.org/10.1117/12.475011
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

The main interest of this study is to investigate phase transformation behavior in hybrid SMA under moderate dynamic loads. A hybrid SMA is described as a two-component composite made of dense SMA matrix with pores, and a passive or active material that fills the pores. The dynamic behavior of hybrid SMA under strain rates of 1000 /s is investigated by incorporating the porous mesostructure in the finite element analysis. X-ray computed micro tomography (XCMT) images are employed to synthesize statistical information and probabilistic algorithms are utilized in obtaining suitable representative finite element meshes. The effective constitutive response of hybrid SMA is obtained by simulating the split Hopkinson bar test of the finite element specimen. A parametric study based on volume fraction of the filler material is carried out. A comparison of hybrid SMA and porous SMA is also performed.

Citation Download Citation

Muhammad A. Qidwai and Virginia G. DeGiorgi "Image-based dynamic modeling of phase transformation in hybrid SMA", Proc. SPIE 4699, Smart Structures and Materials 2002: Active Materials: Behavior and Mechanics, (11 July 2002); https://doi.org/10.1117/12.475011

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available