@article{Chaplain:2020:10.1103/PhysRevApplied.14.054035,
author = {Chaplain, GJ and Ponti, JMD and Aguzzi, G and Colombi, A and Craster, RV},
doi = {10.1103/PhysRevApplied.14.054035},
journal = {Applied Physics Letters},
pages = {054035  1--054035  15},
title = {Topological rainbow trapping for elastic energy harvesting in graded Su-Schrieffer-Heeger systems},
url = {http://dx.doi.org/10.1103/PhysRevApplied.14.054035},
volume = {14},
year = {2020}
}

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TY  - JOUR
AB  - We amalgamate two fundamental designs from distinct areas of wave control in physics, and place them in the setting of elasticity. Graded elastic metasurfaces, so-called metawedges, are combined with the now classical Su-Schrieffer-Heeger (SSH) model from the field of topological insulators. The resulting structures form one-dimensional graded-SSH-metawedges that support multiple, simultaneous, topologically protected edge states. These robust, enhanced localised modes are leveraged for applications in elastic energy harvesting using the piezoelectric effect. The designs we develop are first motivated by applying the SSH model to mass-loaded Kirchhoff-Love thin elastic plates. We then extend these ideas to using graded resonant rods, and create SSH models, coupled to elastic beams and full elastic half-spaces.
AU  - Chaplain,GJ
AU  - Ponti,JMD
AU  - Aguzzi,G
AU  - Colombi,A
AU  - Craster,RV
DO  - 10.1103/PhysRevApplied.14.054035
EP  - 1
PY  - 2020///
SN  - 0003-6951
SP  - 054035
TI  - Topological rainbow trapping for elastic energy harvesting in graded Su-Schrieffer-Heeger systems
T2  - Applied Physics Letters
UR  - http://dx.doi.org/10.1103/PhysRevApplied.14.054035
UR  - https://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.14.054035
UR  - http://hdl.handle.net/10044/1/83819
VL  - 14
ER  - 

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