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SUMMARY:The mechanics of nature-inspired heterogeneous architected materia
 ls (HAMs) - Prof Bosco Yu\, University of Victoria
DTSTART:20230331T100000Z
DTEND:20230331T110000Z
UID:TALK197080@talks.cam.ac.uk
CONTACT:Hilde Hambro
DESCRIPTION:    In light of today’s increasing focus on sustainability\,
  there is a strong demand for the development of lightweight materials\, b
 oth to reduce fuel consumption and raw materials usage. Architected cellul
 ar materials have great potential in this regard. They are hybrid material
 s consisting of a solid combined with pockets of air (voids)\, making them
  lightweight and more easily recyclable. They also have tailorable materia
 l properties (i.e. by carefully designing their internal architecture\, on
 e can control their material properties). Thus\, with a thorough understan
 ding of their structure-property relationships\, it is possible to design 
 architected materials to meet the unique requirements of a large variety o
 f engineering applications (e.g. automotive\, aerospace\, sport\, and biom
 edical) and thus contribute to solving many global sustainable development
  goals.\n    In the past\, traditional manufacturing processes were limite
 d to producing two main types of macrostructures: highly stochastic foams 
 or uniform periodic structures. Between these two extremes of stochasticit
 y\, there is a large untapped design space of architectures that have not 
 yet been fabricated nor explored\, resulting in a gap in the knowledge bas
 e around architected materials. With the recent emergence of additive manu
 facturing (and rapid prototyping) techniques\, researchers can now fabrica
 te a much larger spectrum of cellular materials with a diversity of intern
 al architectures. \n    Dr. Yu’s research is focused on the design and m
 echanics of architected materials with intermediate-level stochasticity\, 
 referred to as heterogeneous architected materials (HAMs). Thus far\, his 
 research group (“Hybrid 3D”) has shown that there is great potential t
 o improve strength or toughness through the development of HAMs with mesos
 copic geometries that mimic natural geometries observed in polycrystalline
  solids (e.g. graphene) as well as other bio-structures (e.g. insect eyes\
 , beehives). This geometrical strengthening effect may serve as a less cos
 tly and potentially more sustainable alternative to traditional alloying t
 echniques. In this seminar\, Dr. Yu will provide a summary of his research
  program on HAMs and will discuss their future potential applications.\n
LOCATION:Oatley Seminar Room\, Department of Engineering
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