Results 61 to 70 of about 238,632 (305)

Cutting brittle rods using elastic wave propagation

Applied and Computational Mechanics, 2021
For the sake of intended industrial applications, the stress wave propagation in thin rods of brittle material is measured and explored. Based on the known theory of a non-dispersive wave propagation in rods, a numerically efficient method for the ...
Šidlof P., Pustka M., Braier Z.
doaj   +1 more source

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

Advanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding, Zhong Zhang, Zeang Zhao, Shengyu Duan, Panding Wang, Xiaogang Guo, Hongshuai Lei, Daining Fang   +7 more
wiley   +1 more source

The Realization of Multidirectional, Free‐Standing 3D Plasmonic Nanostructures via 3D Nanoprinting: A Case Study of Fractal Antennas

Advanced Functional Materials, EarlyView.
Free‐standing plasmonic gold‐based fractal antennas are fabricated by 3D nanoprinting, employing focused electron beam induced deposition and an optimized purification method to remove carbon while conserving structural fidelity. Simulation and experiment show broadband plasmonic activity, including customizable polarizability, thereby paving the way ...
Verena Reisecker, Robert Winkler, Ulrich Hohenester, Evelin Fisslthaler, Daniel Knez, Gerald Kothleitner, Georg Haberfehlner   +6 more
wiley   +1 more source

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

Advanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul, Archith Rayabharam, Lisa Almonte, Eveline Rigo, Joshy Joseph, Ashutosh Kumar, Zhuxin Dong, Narayana Aluru, Gregory Timp   +8 more
wiley   +1 more source

Stress Distribution in Graded Cellular Materials Under Dynamic Compression

Latin American Journal of Solids and Structures
Dynamic compression behaviors of density-homogeneous and density-graded irregular honeycombs are investigated using cell-based finite element models under a constant-velocity impact scenario.
Peng Wang, Xiaokai Wang, Zhijun Zheng, Jilin Yu   +3 more
doaj   +1 more source

Local Phase-Amplitude Joint Correction for Free Surface Velocity of Hopkinson Pressure Bar

Applied Sciences, 2020
The Hopkinson pressure bar is widely used to measure the reflected pressure of blast waves over a short distance. However, dispersion effects will occur when the elastic stress waves propagate in the pressure bar due to lateral inertia, and there will be
Jun Yang, Junhua He, Dezhi Zhang, Haibin Xu, Guokai Shi, Min Zhang, Wenxiang Liu, Yang Zhang   +7 more
doaj   +1 more source

Wave interaction with defects in pressurised composite structures [PDF]

, 2018
There exists a great variety of structural failure modes which must be frequently inspected to ensure continuous structural integrity of composite structures.
A Nag, AH Nayfeh, B Chouvion, B Hosten, B Mace, BR Mace, D Chronopoulos, D Chronopoulos, D Chronopoulos, D Donskoy, D Mead, D Worlton, D. Chronopoulos, G. Tanner, H Chien, J Doyle, J Rose, J-M Mencik, JM Renno, L Cremer, M Lowe, M Lowe, M Petyt, OC Zienkiewicz, P Raju, R Apalowo, R Cook, R Heslehurst, R Hutchinson, R Langley, R Leung, R Talreja, R. K. Apalowo, S Kessler, T Pialucha, W Yuana, Y Waki, Y Young, Z Su   +38 more
core   +2 more sources

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

Advanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey, Arjen van den Berg, Sandra Ruiz Gomez, Claire Donnelly, Dirk Grundler, Sam Ladak   +5 more
wiley   +1 more source

Shear wave propagation in the Achilles subtendons is modulated by helical twist and non-uniform loading

Royal Society Open Science
The triceps surae is composed of the medial gastrocnemius, lateral gastrocnemius and soleus muscles. Each muscle inserts onto a subtendon that undergoes helical twist prior to insertion onto the calcaneus.
Jonathon Blank, Lauren Welte, Jack Martin, Darryl Thelen   +3 more
doaj   +1 more source

Shock Theory of a Bubbly Liquid in a Deformable Tube [PDF]

, 2010
Shock propagation through a bubbly liquid filled in a deformable cylindrical tube is considered. Quasi-one-dimensional bubbly flow equations that include fluid-structure interaction are formulated, and the steady shock relations are derived ...
Ando, K., Brennen, C. E., Colonius, T., Inaba, K., Sanada, T., Shepherd, J. E.   +5 more
core