Results 71 to 80 of about 1,074,720 (325)

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

open access: yesAdvanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva   +2 more
wiley   +1 more source

EBS-based efficient and secure group key management in wireless sensor networks

open access: yesTongxin xuebao, 2009
To achieve the secure group communication in wireless sensor networks(WSN), a EBS-based group key management scheme was presented.First, the network topology was simplified by combining the chain-clusters and the star-clusters.Next, to prevent the ...
WANG Wei1   +3 more
doaj   +2 more sources

SemanticQuark: A Python-Native Framework for Unified Semantic Analytics

open access: yesIEEE Access
Modern analytics environments suffer from persistent metric inconsistency: dashboards, notebooks, and reporting pipelines independently reconstruct business metric definitions, yielding conflicting results that erode trust in data-driven decisions ...
Vipin Kataria, Nitin Kumar
doaj   +1 more source

Clash of Civilizations or Clash of Religions?

open access: yesAmerican Journal of Islam and Society, 1994
Every phase of American foreign policy has found its supporters in American academia. The Cold War had its famous academicians who not only justified American foreign policy at that time but later became prominent decisionmakers.
Mohammed M. Karabal
doaj   +1 more source

Study of Transformed ηζ Networks via Zagreb Connection Indices

open access: yesInformation, 2022
A graph is a tool for designing a system’s required interconnection network. The topology of such networks determines their compatibility. For the first time, in this work we construct subdivided ηζ network S(ηζΓ) and discussed their topology.
Muhammad Hussain   +4 more
doaj   +1 more source

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

open access: yesAdvanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon   +3 more
wiley   +1 more source

Topology control based on dynamic graph embedding in Internet of vehicles

open access: yesTongxin xuebao, 2022
Objectives:With the growth of the automotive market, the road carrying pressure is increasing. However, due to the dynamics, complexity and poor communication environment of Internet of vehicles (IoV), as well as the rapidly changing distance and ...
Yanfei SUN   +5 more
doaj   +2 more sources

A topological join construction and the Toda system on compact surfaces of arbitrary genus [PDF]

open access: yesAnalysis & PDE, 2015
We consider a Toda system of Liouville equations defined on a compact surface which arises as a model for non-abelian Chern-Simons vortices. For the first time the range of parameters $ρ_1 \in (4kπ, 4(k+1)π)$, $k \in \mathbb{N}$, $ρ_2 \in (4π, 8π)$ is studied with a variational approach on surfaces with arbitrary genus.
Aleks, Jevnikar   +2 more
openaire   +4 more sources

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle   +3 more
wiley   +1 more source

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