Results 211 to 220 of about 14,234 (266)

Geometry‐Encoded Programmable Mechanics in Single‐Material Dual‐Phase Metamaterials

Small, EarlyView.
Inspired by the unique soft‐hard heterogeneous architecture of nacre, this study proposes a novel class of dual‐phase (DP) metamaterials. The DP metamaterials exhibit programmable nonlinear mechanical responses, tailored failure processes, and enhanced energy absorption by systematically varying the spatial coding patterns of soft‐hard unit cells ...
Miao Zhao, Na Qiu, Xuhui Zhang, Bei Peng, Zhi Zeng, Xinwei Li, Qing Li   +6 more
wiley   +1 more source

Thermally Regulated Droplet Microfluidics Enables Uniform, Size‐Controllable DNA‐Nanoparticle Superlattices

Small, EarlyView.
Thermally regulated droplet microfluidics enables controlled assembly of DNA‐functionalized gold nanoparticles into uniform, size‐controllable superlattice crystals. Monodisperse droplets formed at elevated temperature suppress premature hybridization, followed by ultra‐slow cooling to promote near‐equilibrium growth.
Naotomo Tottori, Miho Tagawa, Azusa Takao, Lidong Zhang, Maasa Yokomori, Shinya Sakuma, Yoko Yamanishi   +6 more
wiley   +1 more source

Investigating Fracture Behavior of Lattice Structures Using the XFEM and Equivalent Solid Material Model Techniques

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This study aims to numerically investigate the mode I, II, and III fracture behaviors of additively manufactured degradable, bioplastic polylactic acid (PLA) lattice specimens. Numerical simulations were performed using the eXtended Finite Element Method (XFEM) based on the extracted PLA's mechanical and fracture material properties.
Bahman Paygozar, Recep M. Gorguluarslan
wiley   +1 more source

Thermo‐Mechanical Topology Optimization: An Immersed FEM Level‐Set‐Based Approach

International Journal for Numerical Methods in Engineering, Volume 127, Issue 15, 15 August 2026.
ABSTRACT This paper proposes a multi‐physics framework for topology optimization using an immersed level set‐finite element model. The work extends the capabilities of a recently developed immersed level‐set method to thermo‐mechanical problems, including coupling and material‐dependent properties.
Farzad Tatar, Silvia Monchetti, Elisabetta Manconi, Roberto Brighenti   +3 more
wiley   +1 more source

Combinatorial asymmetric acoustic metamaterials with real-time programmability. [PDF]

Proc Natl Acad Sci U S A
Keogh MR, Bilal OR.
europepmc   +1 more source

Inverse Drexhage Effect in Epsilon‐Near‐Zero Substrates

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
Radiative emission of dipoles near substrates is shown to reverse between (a) perfect electric conductors and (b) epsilon‐near‐zero (ENZ) media. The schematic highlights switch from vertical to horizontal dipole dominance, governed by interference with image dipoles, leading to directional emission into the upper half‐space and enabling new strategies ...
Sandeep Kumar Chamoli, Mohamed ElKabbash
wiley   +1 more source

Mining extreme properties from a large metamaterial database. [PDF]

Nat Commun
Chen J, Wei Z, Xiao X, Wei K, Yang X, Qu Z, Fang D.   +6 more
europepmc   +1 more source

Ultra‐Broadband Optical Characterization of TiO2 Nanotube Arrays Revealing Annealing‐Tunable THz Absorption

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
Lithography‐free spaced TiO2 NT arrays unlock tunable broadband absorption from THz to UV. By harnessing annealing‐driven phase transitions, strong phonon–polariton resonances emerge in the 1.4–3.6 THz range, whereas high absorptance persists beyond 10 THz.
Anjali Chaudhary, Morteza Afshar, Emil J. Y. Magaway, Sunil Kumar, Ravendra Kumar Varshney, Jiří Čapek, Ivan Richter, Štěpán Kment, Miguel Navarro‐Cía, Luca Mascaretti   +9 more
wiley   +1 more source

Higher-order exceptional ring semimetal with real hinge states in acoustic metamaterials. [PDF]

Natl Sci Rev
Hu Y, Pu Z, Chen X, Xi Y, Lu J, Deng W, Ke M, Liu Z.   +7 more
europepmc   +1 more source