Publications
1.
Shan, Sicong; Kang, Sung Hoon; Wang, Pai; Qu, Cangyu; Shian, Samuel; Chen, Elizabeth R.; Weaver, James C.; Bertoldi, Katia
Harnessing Multiple Folding Mechanisms in Soft Periodic and Porous Structures to Design Highly Tunable Phononic Crystals Journal Article
In: Advanced Functional Materials, vol. 24, pp. 4935–4942, 2014.
@article{Shan2014,
title = {Harnessing Multiple Folding Mechanisms in Soft Periodic and Porous Structures to Design Highly Tunable Phononic Crystals},
author = {Sicong Shan and Sung Hoon Kang and Pai Wang and Cangyu Qu and Samuel Shian and Elizabeth R. Chen and James C. Weaver and Katia Bertoldi},
url = {http://onlinelibrary.wiley.com/doi/10.1002/adfm.201400665/abstract},
year = {2014},
date = {2014-08-20},
journal = {Advanced Functional Materials},
volume = {24},
pages = {4935–4942},
abstract = {Mechanical instabilities in periodic porous elastic structures may lead to the formation of homogeneous patterns, opening avenues for a wide range of applications that are related to the geometry of the system. This study focuses on an elastomeric porous structure comprising a triangular array of circular holes, and shows that by controlling the loading direction, multiple pattern transformations can be induced by buckling. Interestingly, these different pattern transformations can be exploited to design materials with highly tunable properties. In particular, these results indicate that they can be effectively used to tune the propagation of elastic waves in phononic crystals, enhancing the tunability of the dynamic response of the system. Using a combination of finite element simulations and experiments, a proof-of-concept of the novel material is demonstrated. Since the proposed mechanism is induced by elastic instability, it is reversible, repeatable, and scale-independent, opening avenues for the design of highly tunable materials and devices over a wide range of length scales.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Mechanical instabilities in periodic porous elastic structures may lead to the formation of homogeneous patterns, opening avenues for a wide range of applications that are related to the geometry of the system. This study focuses on an elastomeric porous structure comprising a triangular array of circular holes, and shows that by controlling the loading direction, multiple pattern transformations can be induced by buckling. Interestingly, these different pattern transformations can be exploited to design materials with highly tunable properties. In particular, these results indicate that they can be effectively used to tune the propagation of elastic waves in phononic crystals, enhancing the tunability of the dynamic response of the system. Using a combination of finite element simulations and experiments, a proof-of-concept of the novel material is demonstrated. Since the proposed mechanism is induced by elastic instability, it is reversible, repeatable, and scale-independent, opening avenues for the design of highly tunable materials and devices over a wide range of length scales.
Note: Send e-mail to Prof. Kang at [email protected] if you need a pdf file of the papers below.
2014
Shan, Sicong; Kang, Sung Hoon; Wang, Pai; Qu, Cangyu; Shian, Samuel; Chen, Elizabeth R.; Weaver, James C.; Bertoldi, Katia
Harnessing Multiple Folding Mechanisms in Soft Periodic and Porous Structures to Design Highly Tunable Phononic Crystals Journal Article
In: Advanced Functional Materials, vol. 24, pp. 4935–4942, 2014.
Abstract | Links | BibTeX | Tags: 3D printing, architected materials, Folding Mechanismsm, mechanics of soft materials and structures, Metamaterial, Phononic Crystals, Soft Periodic Porous Structures, Tunability
@article{Shan2014,
title = {Harnessing Multiple Folding Mechanisms in Soft Periodic and Porous Structures to Design Highly Tunable Phononic Crystals},
author = {Sicong Shan and Sung Hoon Kang and Pai Wang and Cangyu Qu and Samuel Shian and Elizabeth R. Chen and James C. Weaver and Katia Bertoldi},
url = {http://onlinelibrary.wiley.com/doi/10.1002/adfm.201400665/abstract},
year = {2014},
date = {2014-08-20},
journal = {Advanced Functional Materials},
volume = {24},
pages = {4935–4942},
abstract = {Mechanical instabilities in periodic porous elastic structures may lead to the formation of homogeneous patterns, opening avenues for a wide range of applications that are related to the geometry of the system. This study focuses on an elastomeric porous structure comprising a triangular array of circular holes, and shows that by controlling the loading direction, multiple pattern transformations can be induced by buckling. Interestingly, these different pattern transformations can be exploited to design materials with highly tunable properties. In particular, these results indicate that they can be effectively used to tune the propagation of elastic waves in phononic crystals, enhancing the tunability of the dynamic response of the system. Using a combination of finite element simulations and experiments, a proof-of-concept of the novel material is demonstrated. Since the proposed mechanism is induced by elastic instability, it is reversible, repeatable, and scale-independent, opening avenues for the design of highly tunable materials and devices over a wide range of length scales.},
keywords = {3D printing, architected materials, Folding Mechanismsm, mechanics of soft materials and structures, Metamaterial, Phononic Crystals, Soft Periodic Porous Structures, Tunability},
pubstate = {published},
tppubtype = {article}
}
Mechanical instabilities in periodic porous elastic structures may lead to the formation of homogeneous patterns, opening avenues for a wide range of applications that are related to the geometry of the system. This study focuses on an elastomeric porous structure comprising a triangular array of circular holes, and shows that by controlling the loading direction, multiple pattern transformations can be induced by buckling. Interestingly, these different pattern transformations can be exploited to design materials with highly tunable properties. In particular, these results indicate that they can be effectively used to tune the propagation of elastic waves in phononic crystals, enhancing the tunability of the dynamic response of the system. Using a combination of finite element simulations and experiments, a proof-of-concept of the novel material is demonstrated. Since the proposed mechanism is induced by elastic instability, it is reversible, repeatable, and scale-independent, opening avenues for the design of highly tunable materials and devices over a wide range of length scales.