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Seminar Series

Dr. Andres Arrieta

Team leader of the Compliant Systems Group
Laboratory of Composite Materials and Adaptive Structures
ETH Zurich

Abstract

Physical phenomena in most engineering fields and applications are inherently nonlinear. Yet, most established engineering design tools have been developed for idealised linear systems. In particular, structural nonlinearity in engineering design has been traditionally associated with problems and loss of functionality, often at the expense of overdesign and suboptimal performance. The positive exploitation of geometrical nonlinearity can allow to obtain extreme mechanical properties in structural systems. The use of such novel properties are used for designing structural systems featuring novel functionalities. This concept is demonstrated through the design of multi-stable elements embedded within larger systems to augment and create novel behaviour ultimately leading to enhanced performance. In particular, multi-stability is utilised for designing high performance smart material systems. Applications are presented in the fields of morphing structures and energy harvesting for autonomous powering of microelectronic devices.

Biography

Dr. Andres Arrieta is currently Team leader of the Compliant Systems Group at the Laboratory of Composite Materials and Adaptive Structures in ETH Zurich, where he currently co-supervises 5 doctoral students and 1 master’s student. He received his Ph.D. in Mechanical Engineering from the University of Bristol in 2010. Before, he obtained his bachelor in Mechanical Engineering from the Universidad de los Andes, in Bogota, Colombia. His research interests are in the subject purposely designing nonlinear behaviour for creating functionality in distributed compliance structures and smart material systems.

Wednesday, November 19th, 2014
2:30 PM
132 Fluor Daniel Building