Seminar on The Mechanics and Applications of Hierarchically Multistable Metastructures

18 May 2022 02.30 PM - 03.30 PM Venue: NS4-02-32 (LT3) Current Students, Public

Dr. Andres F. Arrieta
 
Associate Professor

Purdue University

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This seminar will be chaired by Asst. Prof. Hortense Le Ferrand.

Seminar Abstract

Shape adaptation in materials and structures enables multifunctionality by leveraging different geometrical configurations. These multifunctionality and adaptability stem from the property, form, and function relationship in which any variation in one result in changes in the other. One avenue for exploiting this relationship leverages geometrical multistability, the property of a system to exhibit several stable states that depend solely on the architecture independently from the material constitution. Geometrically multistable systems show shape and stiffness programmability by switching between the available stable states. This seminar presents hierarchical multistability in metamaterials and its applications in soft robotics, stiffness adaptation, and mechanologic. 

Speaker’s Biography​

Dr. Andres F. Arrieta is an Associate Professor of Mechanical Engineering at Purdue University, where he leads the Programmable Structures Lab. Previously, he worked as a Group Leader at ETH Zurich’s CMAS Lab and as a Research Associate at the Dynamics and Oscillations Group at TU Darmstadt. He received his Ph.D. in Mechanical Engineering from the University of Bristol in 2010 and his BEng from the Los Andes University, Bogota, Colombia, in 2006.

Prof. Arrieta’s work focuses on investigating instabilities and nonlinearity in structural mechanics. Current efforts are focused on the modeling and designing of programmable structures, soft robotics, nonlinear metamaterials, and morphing structures. The Programmable Structures Lab’s work has been highlighted by several media outlets, including National Geographic and Nature’s News and Views. Dr. Arrieta has received several awards, including the 2021 Emerging Leader Award in Smart Materials and Structures (IOP Publishing); NSF CAREER Award (2020); the ASME Gary Anderson Award (2018) for outstanding contributions to the field of Adaptive Structures; and the ETH Postdoctoral Fellowship (2012).

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