Nonlinear visco-plastic material characterization utilizing a nonlinear least squares identification algorithm

Janusz Goldasz; John A. Powell

doi:10.1117/12.316914

27 July 1998 Nonlinear visco-plastic material characterization utilizing a nonlinear least squares identification algorithm

Janusz Goldasz, John A. Powell

Author Affiliations +

Proceedings Volume 3329, Smart Structures and Materials 1998: Smart Structures and Integrated Systems; (1998) https://doi.org/10.1117/12.316914
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

Abstract

This work utilizes a previously developed phenomenological model of an electrorheological fluid to predict the response of the material in the presence of an electric field. The model consists of discrete elements, namely, enhanced non- linear Bingham type damping. Newtonian damping and an inertial term, to account for momentum effects. The model is incorporated into a non-linear least squares algorithm to assess the parametric coefficients required to successfully simulate response. For the evaluation of the algorithm experimental data from rheometer tests is utilized.

Citation Download Citation

Janusz Goldasz and John A. Powell "Nonlinear visco-plastic material characterization utilizing a nonlinear least squares identification algorithm", Proc. SPIE 3329, Smart Structures and Materials 1998: Smart Structures and Integrated Systems, (27 July 1998); https://doi.org/10.1117/12.316914

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