Modeling fluid structure interaction with shape memory alloy actuated morphing aerostructures

Stephen D. Oehler; Darren J. Hartl; Travis L. Turner; Dimitris C. Lagoudas

doi:10.1117/12.918061

23 March 2012 Modeling fluid structure interaction with shape memory alloy actuated morphing aerostructures

Stephen D. Oehler, Darren J. Hartl, Travis L. Turner, Dimitris C. Lagoudas

Proceedings Volume 8343, Industrial and Commercial Applications of Smart Structures Technologies 2012; 834305 (2012) https://doi.org/10.1117/12.918061
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

The development of efficient and accurate analysis techniques for morphing aerostructures incorporating shape memory alloys (SMAs) continues to garner attention. These active materials have a high actuation energy density, making them an ideal replacement for conventional actuation mechanisms in morphing structures. However, SMA components are often exposed to the same highly variable environments experienced by the aeroelastic assemblies into which they are incorporated. This is motivating design engineers to consider modeling fluidstructure interaction for prescribing dynamic, solution-dependent boundary conditions. This work presents a computational study of a particular morphing aerostructure with embedded, thermally actuating SMA ribbons and demonstrates the effective use of fluid-structure interaction modeling. A cosimulation analysis is utilized to determine the surface deflections and stress distributions of an example aerostructure with embedded SMA ribbons using the Abaqus Finite Element Analysis (FEA) software suite, combined with an Abaqus Computational Fluid Dynamics (CFD) processor. The global FEA solver utilizes a robust user-defined material subroutine which contains an accurate three-dimensional SMA constitutive model. Variations in the ambient fluid environment are computed using the CFD solver, and fluid pressure is mapped into surface distributed loads. Results from the analysis are qualitatively validated with independently obtained data from representative flow tests previously conducted on a physical prototype of the same aerostructure.

Citation Download Citation

Stephen D. Oehler, Darren J. Hartl, Travis L. Turner, and Dimitris C. Lagoudas "Modeling fluid structure interaction with shape memory alloy actuated morphing aerostructures", Proc. SPIE 8343, Industrial and Commercial Applications of Smart Structures Technologies 2012, 834305 (23 March 2012); https://doi.org/10.1117/12.918061

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