2014-10-16

The Use of Nonlinear Structures for Augmented Performance in Smart Material Systems

Andres F. Arrieta, PhD, ETH Zurich

2 Dec 2014, 14:00–15:30; Location: S4|10-414

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 with unconventional capacities. 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.

Category: CE Seminar

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