Recent advances in additive manufacturing of active mechanical metamaterials

SM Montgomery, X Kuang, CD Armstrong… - Current Opinion in Solid …, 2020 - Elsevier
Active mechanical metamaterials are emerging materials receiving tremendous attention in
the past decades. Additive manufacturing (AM, or 3D printing) techniques empower the …

Guided transition waves in multistable mechanical metamaterials

L Jin, R Khajehtourian, J Mueller… - Proceedings of the …, 2020 - National Acad Sciences
Transition fronts, moving through solids and fluids in the form of propagating domain or
phase boundaries, have recently been mimicked at the structural level in bistable …

Real-time tunable negative stiffness mechanical metamaterial

X Tan, S Chen, B Wang, J Tang, L Wang, S Zhu… - Extreme Mechanics …, 2020 - Elsevier
Real-time tunable mechanical metamaterial is an emerging field attracting great attention. It
enables a wide range of mechanical properties but is hard to design and fabricate due to its …

Buckling induced negative stiffness mechanical metamaterial for bandgap tuning

K Zhang, L Qi, P Zhao, C Zhao, Z Deng - Composite Structures, 2023 - Elsevier
Negative-stiffness mechanical metamaterials that can achieve bandgap tuning are a novel
area of intense interest, enabling vibration control as well as a wide range of mechanical …

Controlled snapping sequence and energy absorption in multistable mechanical metamaterial cylinders

TR Giri, R Mailen - International Journal of Mechanical Sciences, 2021 - Elsevier
Mechancial metamaterials comprising bistable unit cells utilize a sinusoidal beam to enable
significant deformation between stable states, which is associated with energy absorption. A …

Low-frequency tunable locally resonant band gaps in acoustic metamaterials through large deformation

S Ning, F Yang, C Luo, Z Liu, Z Zhuang - Extreme Mechanics Letters, 2020 - Elsevier
Acoustic metamaterials have subwavelength characteristics and hence they can be used for
the low-frequency noise and vibration control. Usually, acoustic metamaterials have …

Effect of beam configuration on its multistable and negative stiffness properties

X Tan, B Wang, L Wang, S Zhu, S Chen, K Yao… - Composite Structures, 2022 - Elsevier
Multistable and negative stiffness mechanical metamaterials are promising and gain great
attention recently. Beam structure is the most commonly used negative stiffness element in …

A systematic group of multidirectional buckling-based negative stiffness metamaterials

Q Li, D Yang, C Ren, X Mao - International Journal of Mechanical Sciences, 2022 - Elsevier
Negative stiffness (NS) metamaterials are kinds of artificial mechanical materials that exhibit
the negative stiffness effect governed by different mechanical mechanisms, among which …

Locally patterned anisotropy using grayscale vat photopolymerization

SM Montgomery, L Yue, Y Song, T Nomura, X Sun… - Additive …, 2023 - Elsevier
Abstract Additive manufacturing (AM), or 3D printing, has the ability to create complicated
structures that cannot be produced using traditional manufacturing methods. However, these …

Novel cross shape phononic crystals with broadband vibration wave attenuation characteristic: Design, modeling and testing

E Panahi, A Hosseinkhani, MF Khansanami… - Thin-Walled …, 2021 - Elsevier
In this paper, elastic wave dispersion characteristics of two novel unit-cells are numerically
and experimentally studied. Based on Bloch's theorem for infinite cellular structures, the …