Fatigue testing of nitinol medical devices demands proof of durability through hundreds of millions of cycles—often up to 600 million. Achieving this within practical development timelines requires accelerated, multi-sample fatigue testing systems capable of delivering both speed and precision.In this webinar, Waters Materials Sciences and Resonetics will share insights into the unique challenges of testing this complex shape-memory alloy and outline proven strategies to help device designers navigate the benchtop design verification phase with confidence, efficiency, and clarity.

Attendees will gain practical strategies to:

• Design representative nitinol coupons that accurately emulate device behavior while producing realistic, interpretable complex strain distributions.
• Build accelerated test setups optimized for high-throughput statistical data collection without compromising measurement quality.
• Implement real-time monitoring and data acquisition to capture dynamic stress–strain responses throughout the fatigue cycle.
• Understand force-controlled vs. displacement-controlled testing and when each control mode is most appropriate for nitinol fatigue characterization.

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Shoab Ahmed Chowdhury, Ph. D.
Applications Scientist
Waters Materials Sciences

Shoab Ahmed Chowdhury is an Applications Scientist for mechanical testing systems at TA Instruments. He completed his Ph.D. at Clemson University, where he performed studies on the long-term performance and environmental response of multi-stable composite materials. He has 6 years of experience in mechanical testing and materials characterization with a keen interest in polymers, composites, and medical devices.

Louis Malito, PhD, PE
Technical Fellow – Nitinol
Resonetics

Louis Malito is a Technical Fellow at Resonetics. He specializes in the fatigue, fracture, failure analysis and general metallurgy of Nitinol. Louis has authored several journal publications and continues to perform custom fatigue and fracture research during his time at Resonetics. He has extensive experience performing medical device fatigue testing on generations of TA Instruments MSF testers.

Andy Simon
Product Manager – Mechanical Testing
Waters Materials Sciences

Andy Simon serves as the Product Manager for Mechanical Testing and DMA solutions at TA Instruments. With more than a decade of experience in engineering and product management, he has built deep expertise in the mechanical testing industry, particularly in the areas of medical devices and materials characterization.

Sean Whooley
Senior Editor
Medical Design & Outsourcing

Sean Whooley is a senior editor who mainly produces work for MassDevice, Medical Design & Outsourcing and Drug Delivery Business News. He received a bachelor’s degree in multiplatform journalism from the University of Maryland, College Park.