Results 1 to 10 of about 1,837,050 (168)

Perspectives on additive manufacturing for dynamic impact applications

open access: yesMaterials & Design, 2022
Applications involving strain rates in excess of 102 - 103s−1 are unique in both materials selection and design approaches and are of particular importance for protection of infrastructure and personnel in dynamic impact scenarios. Three broad categories
Alexander E. Medvedev   +4 more
doaj   +1 more source

Development of Texture Mapping Approaches for Additively Manufacturable Surfaces

open access: yesChinese Journal of Mechanical Engineering, 2022
Additive manufacturing (AM) technologies have been recognized for their capability to build complex components and hence have offered more freedom to designers for a long time.
Bhupesh Verma   +3 more
doaj   +1 more source

Increased efficiency gyroid structures by tailored material distribution

open access: yesMaterials & Design, 2021
The gyroid has been identified as a cellular topology suitable for engineering applications and, particularly in its solid-network form, for biomedical applications.
David Downing   +3 more
doaj   +1 more source

Investigation on Surface Roughness of PolyJet-Printed Airfoil Geometries for Small UAV Applications

open access: yesAerospace, 2022
The present study focuses on producibility and surface roughness characteristics of airfoil geometries and their effect on aerodynamic performance for different velocities, surface roughness values and angles of attack.
Orhan Gülcan   +2 more
doaj   +1 more source

Process Optimization for Up-Facing Surface Finish of AlSi10Mg Alloy Produced by Laser Powder Bed Fusion

open access: yesMetals, 2022
This work investigates the effects of various processing parameters (laser power, scanning speed, hatch distance and beam offset) on the resultant inclined up-facing surface roughness of AlSi10Mg alloys produced by laser powder bed fusion (LPBF).
Chaofeng Gao   +5 more
doaj   +1 more source

High temperature performance of wire-arc additive manufactured Inconel 718

open access: yesScientific Reports, 2023
In developing a wire-arc directed energy deposition process for superalloys used in high-speed flight environments, Inconel 718 was deposited using a plasma arc process and tested for its high temperature performance. The deposited material was tested in
William Sean James   +2 more
doaj   +1 more source

Improved Purely Additive Fault-Tolerant Spanners [PDF]

open access: yes, 2015
Let $G$ be an unweighted $n$-node undirected graph. A \emph{$\beta$-additive spanner} of $G$ is a spanning subgraph $H$ of $G$ such that distances in $H$ are stretched at most by an additive term $\beta$ w.r.t. the corresponding distances in $G$.
Bilò, Davide   +4 more
core   +1 more source

An FPT Algorithm for Minimum Additive Spanner Problem [PDF]

open access: yes, 2019
For a positive integer t and a graph G, an additive t-spanner of G is a spanning subgraph in which the distance between every pair of vertices is at most the original distance plus t.
Kobayashi, Yusuke
core   +2 more sources

Buckling phenomena in AM lattice strut elements: A design tool applied to Ti-6Al-4V LB-PBF

open access: yesMaterials & Design, 2021
Additive Manufacturing (AM) technologies such as Laser-Based Powder Bed Fusion (LB-PBF) enables the manufacturing of high efficiency lattice structures. However, the LB-PBF processes inherently generate local geometric effects. The practical implications
Ahmad Alghamdi   +8 more
doaj   +1 more source

Novel 3D grid porous Li4Ti5O12 thick electrodes fabricated by 3D printing for high performance lithium-ion batteries

open access: yesJournal of Advanced Ceramics, 2022
Three-dimensional (3D) grid porous electrodes introduce vertically aligned pores as a convenient path for the transport of lithium-ions (Li-ions), thereby reducing the total transport distance of Li-ions and improving the reaction kinetics.
Changyong Liu   +7 more
doaj   +1 more source

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