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SUMMARY:Nonlinear multiscale structure optimization: vibration\, cloaking 
 and snap-through - Matthew Santer\, Imperial College London\, UK
DTSTART:20251010T140000Z
DTEND:20251010T150000Z
UID:TALK229024@talks.cam.ac.uk
CONTACT:Shehara Perera
DESCRIPTION:We will introduce the multiscale optimization of graded lattic
 e micro-structures which enable useful and potentially unintuitive behavio
 ur at the macroscale. We will first consider a vibration control case in w
 hich the macro-scale dynamic modes and resonant frequencies of a structure
  can be precisely tailored without changing the global geometry and mass. 
 This has particular relevance for the design of structures designed for la
 unch applications. It will then be demonstrated how the inclusion of geome
 tric and material nonlinearity in the optimization enables unusual emergen
 t properties\, including mechanical cloaking and the synthesis of microstr
 uctures exhibiting snap-through and bistable responses.
LOCATION:CivEng Seminar Room (1-33) (Civil Engineering Building)
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