Results 61 to 70 of about 7,738 (263)
Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
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Numerical investigation on flexible barriers impacted by dry granular flows using DEM modeling
Yantu gongcheng xuebao, 2019 The interaction of flexible barriers and granular flows has two complex mechanical processes: the continuous large deformation of flexible barriers and the discrete motion of particles. Owing to the fact that the theoretical method for the interaction of
XIAO Si-you 1, 2, 3, SU Li-jun 1,2,3,4, JIANG Yuan-jun 1, 2, 3
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Applications of computational fluid dynamics in optimisation and design of metallurgical processes [PDF]
Modeling, Identification and Control, 1997 During the last two decades computational fluid dynamics (CFD) has become a powerful tool for analysing and designing metallurgical processes. In this paper we give examples on how these techniques can be applied to a large variety of processes and also ...
Stein T. Johansen
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Universal Behavior in Granular Flows and Traffic Flows [PDF]
Progress of Theoretical Physics Supplement, 1998 18 page, LaTex with two style ...
Hayakawa, Hisao, Nakanishi, Ken
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Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
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Granular Flow: From Dilute to Jammed States
, 2017 Particulate systems and granular matter display dynamic or static, fluid‐ or solid‐like states, respectively, or both at the same time. The mystery of bridging the gap between the particulate, microscopic state and the macroscopic, continuum description is one of the challenges of modern research.
Shi, Hao +5 more
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Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
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Advanced Engineering Materials, EarlyView.A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm +3 more
wiley +1 more source
On the gravity flow of granular materials
International Journal of Mechanical Sciences, 1982 Abstract The governing equations for flow of an incompressible and cohesionless material are solved approximately by a new procedure. In this procedure the equilibrium equations and the yield criterion are satisfied identically through invocation of the Airy stress function and the Sokolovski functions. The problem analysed pertains to radial flow in
MERIC, RA, TABARROK, B
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Advanced Engineering Materials, EarlyView.New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold +2 more
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