University of Cambridge > Talks.cam > Engineering Structures Seminar Series > Dynamic mechanisms in hierarchical structures ranging from steel frames, 3D lattice materials to bio-inspired metallic-ceramic cellular structures

Dynamic mechanisms in hierarchical structures ranging from steel frames, 3D lattice materials to bio-inspired metallic-ceramic cellular structures

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If you have a question about this talk, please contact Dr Maria Marques de Carvalho.

The talk will begin with an overview of buckling mechanisms, which occur at various levels in hierarchical structures under global compressive loads. Elastic buckling can be a useful tool in designing reversible mechanisms, while plastic buckling is an efficient way of dissipating energy, with an automotive crushing tube a notable example. The talk will progress to more complex mechanisms in bio-inspired, metallic cellular structures, which involve not only mechanical deformations but also wave propagation and chemical reactions under extreme loads such as blast and impact. Chemical energy dissipation and a potential for creating mechanisms, which benefit from the interplay between chemical length scales and overall structural features will be touched upon briefly. Lastly, we will discuss some fundamental problems of computational mechanics, which emerge from studying hierarchical structures such as stochastic material features and novel material characterisation techniques.

This talk is part of the Engineering Structures Seminar Series series.

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