Results 51 to 60 of about 42,911 (263)

Mechanical Properties of Semi-Regular Lattices

Materials & Design, 2022
The mechanical properties of seven semi-regular lattices were derived analytically for in-plane uniaxial compression and shear. These analytical expressions were then validated using Finite Element simulations.
Milad Omidi, Luc St-Pierre
doaj   +1 more source

Modeling Dislocation Cutting of γ′ Precipitates in Ni‐Base Superalloys: Linking Atomistic and Dislocation Dynamics Simulations

Advanced Engineering Materials, EarlyView.
Dislocation cutting of γ′ precipitates in Ni‐based superalloys is investigated by linking atomistic simulations with discrete dislocation dynamics. The critical cutting stress is shown to be governed by the antiphase boundary energy, while line tension effects promote edge‐preferred cutting.
Frédéric Houllé, Siwen Gao, Marc Fivel, Anxin Ma, Daria Smirnova, Sriram Anand, Arun Prakash, Julien Guénolé, Alexander Hartmaier, Erik Bitzek   +9 more
wiley   +1 more source

Experimental and numerical investigation of diagonally reinforced 3D-architected polymer honeycomb lattice structures fabricated via FDM using PLA

Forces in Mechanics
This study introduces a novel hexagonal honeycomb lattice design incorporating integrated diagonal struts, developed to enhance compression strength and energy absorption in 3D-printed polymer structures.
Vigneshwaran Karupaiah, Venkateshwaran Narayanan, Elif Kaynak, Vigneshwaran Shanmugam, Oisik Das   +4 more
doaj   +1 more source

Effect of nanoconfinement and pore geometry on point of zero charge in synthesized mesoporous siliceous materials

JCIS Open, 2022
Fluid-rock interactions may differ in mesopores (2–50 ​nm diameter) compared to macropores (>50 ​nm diameter). This study evaluates the influence of nano-confinement and pore geometry on point of zero charge (PZC) and hence surface charge and adsorption.
Andrew T. Jacobson, Chen Chen, Janet C. Dewey, Grant C. Copeland, Wayne T. Allen, Bryony Richards, John P. Kaszuba, Adri C.T. van Duin, Hyeyoung Cho, Milind Deo, Yuqi She, Thomas P. Martin   +11 more
doaj   +1 more source

Advanced Electron Microscopy and Microcomputed Tomography Analysis of Single‐Crystal Ni‐Base Superalloys After Short‐Term Multiaxial Creep

Advanced Engineering Materials, EarlyView.
This work studies the anisotropic behavior of circular notched tensile specimens of Ni‐base superalloy single crystals during high‐temperature tensile creep along [001], [110], and [111]. Correlative scale‐bridging imaging of specimens reveals early rupture along [110] because 1) plastic deformation proceeds faster at notch center; 2) more (brittle ...
Leonardo Agudo Jácome, Lijie Cao, Christoph Somsen, Johannes Boes, René Hesse, Werner Theisen, Gunther Eggeler   +6 more
wiley   +1 more source

New AI‐Assisted Approach for Expanding the Solution Space: Application to Lattice Structure Design

Advanced Engineering Materials, EarlyView.
This work introduces an innovative framework for designing structured materials by ex panding the design space through reparameterization of qualitative variables into continuous structural descriptors. Combined with machine‐learning‐based prediction and multi‐objective optimization, the approach enables the discovery of novel lattice architectures ...
G. H. Gahimbare, Y. Beideler, D. Chune, R. De Guio, T. Roland, H. Chibane   +5 more
wiley   +1 more source

A new pick-type theorem on the hexagonal lattice

Discrete Mathematics, 1988
Let L be the vertex set of the plane tiling by regular hexagons of a unit area. The paper discusses a ``Pick-type theorem'' for hexagonal lattice polygons P, that is, polygons whose vertices belong to L. It is proved that for certain kinds of hexagonal lattice polygons P the area A(P) of P is given by \(A(P)=b/4+i/2+c/12-1,\) where b is the number of ...
Ren Ding, Krzysztof Kolodziejczyk, John R. Reay   +2 more
openaire   +2 more sources

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

Advanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen, Roger Guzman, Xiaomin Jia, Jialu Wu, Xing Xu, Li Sun, Jinbo Pan, Shixuan Du, Myung‐Hwan Whangbo, Wu Zhou, Jing Ma, Ce‐wen Nan, Chonglin Chen   +12 more
wiley   +1 more source

The Structural, Morphological, Optical and Photoluminescence Studies of Mn2+ Doped CdS/Zn3(PO4)2 Nanocomposites [PDF]

Iranian Journal of Materials Science and Engineering, 2022
The present study used a hydrothermal technique to synthesize undoped and Mn2+ doped CdS/Zn3(PO4)2 semiconducting nanocomposite materials. Powder X-ray diffraction, scanning electron microscopy, UV-Vis diffuse reflectance spectrometer, Fourier transform ...
Sreedevi Gogula, Sandhya Cole, Venkata Rao Kanakala, Gogula Jaya Ram pavan kumar, B Tirumala Rao   +4 more
doaj  

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source