Current Projects:

SMA Characterization, Model Development and Design

Fatigue and Fracture of SMAs

High Temperature SMAs (HTSMAs)

Magnetic SMAs(MSMAs)

Numerical Analysis and Design of Aerospace Applications Incorperating

Shape Memory Polymers (SMPs)

Hybrid SMA Composites

Past Projects:

Compact SMA Actuators


Dynamic SMAs

Multifunctional Materials

Non-Linear Vibration of SMA Systems

Porous SMAs

Smart Skin

SMA Actuators

Space SMAs
Numerical Analysis and Design of Aerospace 
Applications Incorperating SMAs

Project Description:

This project is based on applying the predictive capabilities of constitutive models developed by the SMART team to real-world SMA design problems. Specifically, as members of the Department of Aerospace Engineering, we focus on applications for use on fixed wing aircraft, though rotorcraft and spacecraft have also been considered.

The special engineering constraints of high actuation force provided within a low volume of installation make SMAs an especially attractive design option for the aerospace industry. Analysis and prediction of global application response (forces and deflections) and local loads within the active material (stresses and strains) is accomplished via Finite Element (FE) implementations of the mathematical models. Integration algorithms for the rate equations are coded to enhance both the speed of analysis while also accounting for effects such as large structural rotations. The global FE solver also considered contact (including friction), connections, heat transfer phenomena, etc. Improvements to the constitutive model (based on new experimental findings, for example) can be quickly incorporated into the FE framework.

The Boeing Company has historically been, and continues to be, an important collaborator in this work, and funds most aerospace application development.

People Involved with Numerical Analysis:

Darren Hartl, Ph.D.
Dimitris Lagoudas, Ph.D.