Event announcement as pdf-Download (https://tu-dresden.de/mn/phys ik/ressourcen/dateien/physikalisches-kolloquium/2024-01-23-Phys_Kolloq-Gui ducci-WiSe2023.pdf).
Abstract: From a mechanics standpoint\, slender structures are peculiar in how they respond to extern al loading because their deformation behavior is typically soft and charac terized by several sources of non-linearities. For instance\, large deflec tions and rotations can occur upon minor increments of local strain in the structure’s material (geometric non-linearities). Also\, when slender s tructures are subjected to compression or shearing they can buckle\, leadi ng to macroscopic shape-change (morphing) and state switching (multistabil ity). Moreover\, due to their large volume-to-surface ratio\, interfacial properties can become dominant. Even more interestingly\, such non-lineari ties can also occur in absence of external forces and thus can be incorpor ated in the structure itself\, for instance via anelastic strain mismatch or inhomogeneous growth and are equally observed in both biological and ar tificial material systems. Drawing upon these concepts\, in my talk I will present three exemplary slender material systems\, loosely inspired from biological analogues\, that leverage such non-linearities to create comple x mechanical behavior\, such as programmable morphing\, gripping and slipp ing. In particular\, for each system\, we define relevant geometric parame ters and consequently build phase diagrams that help rationalize the avail able design space. Finally we demonstrate possible applications by manufac turing large scale assemblies of such slender structures as mechanical met amaterials with targeted behavior.
Short bio:
Lorenzo Guiducci is a biomedical engineer with a PhD in Physics\, S cience of Biomaterials. Borrowing inspiration from biological materials an d their unique structure-function relationships\, he combines computer sim ulations\, analytical modelling and tabletop experiments to design new arc hitected materials with tailored and programmable behavior. His interdisci plinary working methods and interests often overlap with those from applie d designers with whom he collaborates. At present\, he is Research Associa te at the “Department of Speculative Transformation” in the “Center for Interdisciplinary Digital Sciences” at Technical University Dresden.
DTSTAMP:20260405T065005Z CREATED:20240118T132455Z LAST-MODIFIED:20240123T063846Z END:VEVENT END:VCALENDAR