Results 151 to 160 of about 870,603 (387)

Sheet metal forming using liquid [PDF]

open access: yes, 2015
Tato práce je zaměřena na nekonvenční technologie využívající kapalinu jako tvářecí médium. Práce uvádí princip tvářecích metod hydroforming a jeho variací, wheelon, flexform hydromechanického tažení a explozivního tváření s ukázkami součástí vyrobených ...
Fries, Petr
core  

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

open access: yesAdvanced 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   +7 more
wiley   +1 more source

Simulation of the forming and assembling process of sheet metal assembly [PDF]

open access: yes, 2011
A sheet metal assembly must meet functional, manufacturing, and sometimes also esthetical requirements. The properties of the assembly are to a large extent affected by the manufacturing process, i.e.
Andersson, Alf   +3 more
core  

Ice Lithography: Recent Progress Opens a New Frontier of Opportunities

open access: yesAdvanced Functional Materials, EarlyView.
This review focuses on recent advancements in ice lithography, including breakthroughs in compatible precursors and substrates, processes and applications, hardware, and digital methods. Moreover, it offers a roadmap to uncover innovation opportunities for ice lithography in fields such as biological, nanoengineering and microsystems, biophysics and ...
Bingdong Chang   +9 more
wiley   +1 more source

Sheet metal forming by numerical simulations: 2D and 3D axisymmetric deformation of a cylindrical piece [PDF]

open access: yes, 2017
Until few years ago, design of sheet metal forming was based on knowledge through work experience and expensive trial and error process. Nowadays the use of numerical simulations in different phases of the sheet metal forming process are performed ...
Azevedo, Lucas D.   +3 more
core  

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

open access: yesAdvanced 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   +6 more
wiley   +1 more source

The implementation of the vegter yield criterion and a physically based hardening rule in finite elements [PDF]

open access: yes, 1998
A new material description for sheet metal forming using Finite Elements has been developed. The description consists of a yield criterion and a hardening rule.
Carleer, B.D.   +5 more
core   +1 more source

Quantifying Spatio‐Operational Heterogeneity in Electrochemical Devices via Operando Correlative Neutron and X‐Ray Tomography

open access: yesAdvanced Functional Materials, EarlyView.
Heterogeniety in electrochemical systems heavily influences device performance and durability. The study shows unique evidence of spatio‐operational heterogeneity in fuel cells via operando neutron and X‐ray tomography. Large variations in membrane thickness and hydration depend upon location and operating conditions, with implications on membrane ...
Pranay Shrestha   +9 more
wiley   +1 more source

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