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mechanical metamaterials

Joshua's picture

Magneto-thermomechanically reprogrammable mechanical metamaterials

We developed a method enabling a single material system to transform with untethered, reversible, low-powered reprogrammable deformations and shape locking via the application of magneto-thermomechanically triggered prestress on the Shape Memory Polymers (SMPs) and structural instability with asymmetric magnetic torque.

Joshua's picture

Inverse design of 3D reconfigurable architected materials

We developed an inverse design method for constructing 3D reconfigurable architected structures — we synthesized modular origami structures whose unit cells can be volumetrically mapped into a prescribed 3D curvilinear shape followed by volumetric shrinkage for constructing modules. After modification of tubular geometry, we searched modular origamis’ geometry and topology for target mobility using a topological reconstruction of modules.

Joshua's picture

Coupling of a magnetic field with instability

A bistable curved beam with magnetic torque-driven actuation has the potential for fast and untethered reconfiguration of metamaterials. However, no modeling method of a bistable curved beam whose instability is coupled with an external magnetic field for the design of active metamaterials. A bistable curved beam's second mode (S-shape) generation is essential for a multimodal and multistep reconfiguration of metamaterials, which was not explored before.

Joshua's picture

Postdoc at Shanghai Jiao Tong University

S-Lab ( is looking for a highly qualified postdoc to work in mechanical metamaterials, 4D printing, and soft robotics.

Joshua's picture

Mechanical couplings of 2D lattices uncovered by decoupled micropolar elasticity tensor and symmetry operation

We introduce a generalized methodology to uncover all mechanical couplings in 2D lattice geometries by obtaining the decoupled micropolar elasticity tensor. We also correlate the mechanical couplings with the point groups of 2D lattices by applying the symmetry operation to the decoupled micropolar elasticity tensor. The decoupled micropolar constitutive equation reveals eight mechanical coupling effects in planar solids, four of which are discovered for the first time in the mechanics' community.

Kshiteej Deshmukh's picture

Multiband homogenization of metamaterials in real-space: Higher-order nonlocal models and scattering at external surfaces

Dear colleagues, 

We invite you to read our recent article, which proposes a multiband homogenization scheme and has been accepted to appear in JMPS (

Multiband homogenization of metamaterials in real-space: Higher-order nonlocal models and scattering at external surfaces

jenda_z's picture

CTU Global Postdoc Fellowship in quasicontinuum modeling of lattice structures and metamaterials

Together with Ondřej Rokoš and Milan Jirásek, we are searching for a postdoctoral researcher to work with us on leveraging quasi-continuum methods towards robust simulations of initiation and propagation of instabilities in architectured materials and flexible mechanical metamaterials. Eligible candidates must hold a Ph.D. degree awarded in 2015 or later.

itsmi's picture

Two PostDoc openings in (1) Digital Fabrication and (2) Programmable Matter at Johns Hopkins University


The Mueller Lab invites applications for two fully-funded Postdoctoral Fellow positions at the intersection of Additive Manufacturing, Mechanical Metamaterials, and Computational Design. Of specific interest are candidates with a background in direct-ink writing (DIW), dielectric-elastomer actuators (DEA), and computational design (including optimization and machine learning). Applicants must hold a PhD in Mechanical Engineering, Materials Science, Computer Engineering, Applied Mathematics, or a related discipline.

Rashid K. Abu Al-Rub's picture

Postdoctoral Position Available in United Arab Emirates within the Khalifa University Advanced Digital & Additive Manufacturing (ADAM) Center

A postdoctoral fellow research position is availabe immediately in the Advanced Digital & Additive Manufacturing (ADAM) center at Khalifa University in Abu Dhabi in United Arab Emirates. Applicants should demonstrate research capabilities in computational modeling and experimentation in the area of additive manufacturing (3D printing).

jenda_z's picture

Ph.D. position in physics-informed machine learning for smart materials

Ondřej Rokoš, Vlado Menkovski, and Marc Geers (all from the Eindhoven University of Technology), together with Martin Doškář (Czech Technical University in Prague), are searching for a motivated Ph.D.

rabedi's picture

MS/PhD positions U of Tennessee elastodynamic metamaterials & RTE (computational)

I have a few positions (funded by NSF, AFRL, and/or ARO) for MS or PhD (preferred) students at the University of Tennessee Space Institute (UTSI) and University of Tennessee Knoxville (UTK) in the following two topics:


1. Elastodynamic metamaterials: Characterization of dispersive constitutive equations and simulation of the material with overall properties in the time domain (TD), analysis of the effect of disorder and material nonlinearities (e.g. fracture) in their performance, etc.

Rashid K. Abu Al-Rub's picture

Postdoctoral Position Available in United Arab Emirates within the Advanced Digital & Additive Manufacturing (ADAM) Center

A postdoctoral fellow research position is availabe immediately in the Advanced Digital & Additive Manufacturing (ADAM) center at Khalifa University in Abu Dhabi in United Arab Emirates. Applicants should demonstrate research capabilities in modeling, experimentation, and testing in the area of additive manufacturing (3D printing). Candidates with research experience related to sandwich panels will be considered with higher priority.

M. Shaat's picture

Metamaterials with Giant and Tailorable Nonreciprocal Elastic Moduli

Natural nonlinear materials, e.g., biological materials and polymers, are mechanically weak. It has been amajor challenge to develop a nonlinear material with potentialmechanical applications. Here, we develop a nonlinear elastic metamaterial with giant and tailorable-nonreciprocal elastic moduli. The metamaterial is designed with a microstructural axial asymmetry, which activated nonlinear microstructural deformations in the axial direction and microstructural residual moments.

M. Shaat's picture

Hinged-3D metamaterials with giant and strain-independent Poisson’s ratios

Current designs of artificial metamaterials with giant Poisson’s ratios proposed microlattices that secrete the transverse displacement nonlinearly varies with the longitudinal displacement, and the Poisson’s ratio depends on the applied strain (i.e., tailorable Poisson’s ratio). Whereas metamaterials with tailorable Poisson’s ratios would find many important applications, the design of a metamaterial with a giant Poisson’s ratio that is constant over all the material deformation range has been a major challenge.

Xiaoyue Ni's picture

Multiple positions on flexible electronics and programmable metamaterials at Duke University

We are looking for strongly motivated Postdocs and/or Ph.D. students to join our group in the Department of Mechanical Engineering & Materials Science at Duke University. Two openings with primary focuses on flexible electronics and programmable matter are available immediately. 


cbrinson's picture

New AI + Metamaterials postdoc position

We are seeking a creative and enthusiastic postdoc to work at Duke University as part of a collaborative new DOE funded project entitled "FAIR Data and Interpretable AI Framework for Architectured Metamaterials". Candidate should have phd in mechanical or materials engineering, with experience in mechanical metamaterials, the underlying physical principles, finite element simulations, and preferably some knowledge of AI/ML and desire to learn more.

Massimiliano Gei's picture

Phononic canonical quasicrystalline waveguides

I am glad to present a recent set of papers highlighting the noteworthy properties of 1D periodic waveguides generated by a quasicrystalline sequence. The concept of canonical configuration explains how to obtain a periodic frequency spectrum and why this outcome is connected to trace mapping:  

-->M. Gei, Z. Chen, F. Bosi, L. Morini (2020) Appl. Phys. Lett. 116, 241903 -

rabedi's picture

PhD position in computational mechanics (focus elastodynamics)



I have a PhD position available for a project involving the design of metamaterial unit cells for shock wave mitigation applications. The graduate research assistantship (GRA) position is for the University of Tennessee Space Institute (UTSI) which is a part of University of Tennessee Knoxville (UTK). The student will be located in Knoxville. Some important points are:

zichen's picture

Two postdoc positions in solid mechanics/mechanical metamaterials/soft robotics/biomechanics

The Chen lab at Dartmouth is looking for two postdocts in solid mechanics/mechanical metamaterials/soft robotics/biomechanics areas with an expected start date after 7/1/2020.

Jinxiong Zhou's picture

Snap-back induced hysteresis in an elastic mechanical metamaterial under tension

We combine experiment and finite element simulation and come up with a design of a mechanical metamaterial which demonstrates snap-back induced hysteresis and energy dissipation. The resultant is an elastic system that can be used reversibly for many times. The underlying mechanism of existence of hysteresis and the physics of snap-back induced elastic instability is unveiled. Our results open an avenue for design and implementation of recoverable energy dissipation devices by harnessing mechanical instability.

New Article in Science Translational Medicine: Application of Mechanical Metamaterials in Medicine

Abstract: We hypothesized that ingested warm fluids could act as triggers for biomedical devices. We investigated heat dissipation throughout the upper gastrointestinal (GI) tract by administering warm (55°C) water to pigs and identified two zones in which thermal actuation could be applied: esophageal (actuation through warm water ingestion) and extra-esophageal (protected from ingestion of warm liquids and actuatable by endoscopically administered warm fluids).


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