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“Topologically Interlocked Material Systems: From a material design concept to properties”

Event Type
Department of Mechanical Science and Engineering
190 Engineering Sciences Building
Nov 14, 2017   3:00 - 4:00 pm  
Professor Thomas Siegmund, School of Mechanical Engineering, Purdue University
Holly Foster
Originating Calendar
MechSE Seminars


Topologically interlocked material (TIM) systems are load-carrying assemblies of unit elements interacting by contact and friction, aided by an external or internal confinement. This talk presents our research findings on TIM material system design, manufacturing aspects and mechanical properties.


I first review the motivation and underlying drivers to the design of TIM systems. I then discuss manufacturing approaches for TIM systems, all based on assembly processes employ the concept of scaffold as a unifying theme. I will demonstrate how TIM systems emerge as a class of architecture materials with mechanical properties not ordinarily found in monolithic solids. These properties include, but are not limited to, high damage tolerance, damage confinement, adaptability, and multifunctionality. The review on mechanical property characteristics links the manufacturing approaches to several relevant material configurations and details recent findings on quasi-static and impact loading, and on multifunctional response.


About the Speaker

Dr. Thomas Siegmund is Professor of Mechanical Engineering at Purdue University. His research interests are in creating new material functionalities through material architectures, in fracture and fatigue problems, as well as in biomechanics of osteoporosis and phonation. Dr. Siegmund has published over 100 refereed journal papers and he holds several patents. He served as NSF Program Director for Mechanics of Materials and Structures, and currently is the President of the Society of Engineering Science. His research is featured on his lab’s website


Host:  Professor Martin Ostoja-Starzewski

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