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Special Events

SHORT COURSE

Sunday September 8
1:00PM–4:30PM, Barley, Level 3
Instructor: Darren Hartl
Course Title: Shape Memory Alloys: Behaviors, Modeling, Analysis, and Design

Description:
Shape memory alloys are one of the most investigated active materials because of their impressive ability to recover large strains under high loads,
and new application concepts are constantly being introduced. This course will provide engineers and researchers with a background in the response
of these unique metals, especially as compared with other active materials. The empirical understanding developed will then be used to motivate one-
dimensional mathematical constitutive models, one derived directly from experiments and a second considering thermodynamic constraints. Three-
dimensional finite element analysis techniques will be reviewed, and design case studies from the aerospace and medical sectors will be presented
and discussed. Attendees will be provided with working finite element models (Abaqus-based) and associated user instructions to continue their own
investigations.

Learning Outcomes:
By the end of the course, attendees will:

• Understand the engineering responses of SMAs and how these enable unique applications
• Be able to derive one-dimensional constitutive models based on both experimental data and thermodynamic constraints
• Have exposure to the finite element analysis of three-dimensional SMA components and have the ability to run their own analyses
• Understand multiple case studies regarding the design of SMA components and applications.

Intended Audience:
Graduate students with background in the mechanics of materials; M.S. and Ph.D. researchers in both academia and industry; all those interested in the
potential of shape memory alloys

Course Level:
Course will be taught at the graduate level.

Course Length:
Half day (3.5 hours); 0.35 CEU

Biography:
This course will be taught by Dr. Darren Hartl (Ph.D. 2009, Texas A&M Aerospace Engineering). Dr. Hartl is an Assistant Professor at Texas A&M, and
his work bridges the topics of advanced multifunctional material systems and their integration into aerospace platforms. Before his return to academia,
Dr. Hartl held joint appointments at the Air Force Research Laboratory (AFRL) in the Materials and Manufacturing Directorate and Aerospace Systems
Directorate. He has over 17 years of experience working with shape memory alloys (SMAs) and morphing structures and has co-authored 165 technical
publications on the topics of active materials modeling, testing, and integration into morphing structures, most of these related to SMAs. He serves as an
Associate Editor for the Journal of Intelligent Material Systems and Structures and was selected as the 2016 recipient of the ASME Gary Anderson Early
Achievement Award. He is Chair of the ASME Adaptive Structures and Materials Systems Branch.

Additional Comments:
The provided Abaqus-based finite element input files are intended to serve as a hands-on computational lab activity to be undertaken after conclusion
of the course. However, should students bring their own devices and have access to Abaqus (e.g., via Remote Desktop, etc.), accommodations will be
made for real-time support of these activities.

For those interested in background study and prior preparation, Chapters 1–3 of the Shape Memory Alloy textbook by
Lagoudas et al. will be most useful. This text is available for free to many organizations via the following link:
https://link.springer.com/book/10.1007/978-0-387-47685-8.

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