Results 101 to 110 of about 109,364 (255)
Trace Ru‐Doped PtCuRu@PtRu Core‐Shell Electrocatalyst for CO‐Resilient Methanol Oxidation
Advanced Science, EarlyView.We engineered a trace Ru‐doped PtCuRu@PtRu core‐shell nanostructure. This design exploits lattice mismatch‐induced compressive strain between the PtCuRu ternary core and trace Ru‐doped Pt‐rich shell, systematically downshifting the Pt d‐band center to weaken *CO adsorption energetics.
Tianrui Xue +7 more
wiley +1 more source
Calorimetric consequences of thermal softening in Johnson–Cook’s model [PDF]
, 2013 At high loading rates, the development of adiabatic shear bands in metals is conventionally attributed to the strong interactions induced by viscoplastic dissipation within the bands and thermal softening effects.
RANC, Nicolas, CHRYSOCHOOS, André
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Wide Temperature Zero Thermal Expansion in Al Matrix Composites with High Thermal Conductivity
Advanced Science, EarlyView.Strain engineering strategy is implemented on the negative thermal expansion (NTE) phase Zn1.6Mg0.4P2O7 within composites, where Al matrix‐induced compressive strain drives uniform polyhedral and unit cell evolution, thereby enabling broad and consistent thermal compensation efficacy and obtaining good thermal performance.
Jinrui Qian +14 more
wiley +1 more source
Comparison of Johnson-Cook and modified Johnson-Cook material constitutive models and their influence on finite element modelling of Ti6Al4V orthogonal cutting process [PDF]
, 2019 peer reviewedTitanium alloys such as Ti6Al4V are widely used and are well known as hard-to-machine material. The material behavior that is described by the constitutive equation plays a pivotal role in modeling and simulation of machining process.
Edouard Riviere-Lorphèvre +7 more
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Modified Johnson–Cook material flow model for hot deformation processing.
, 2010 The need of a generalised flow curves considering strain (e), strain rate (_e) and temperature (T) is a primary requirement for material modelling related to several conventional and strategic mechanical processing to meet critical and non ...
K.K., Pathak +3 more
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, 2017 Holmquist–Johnson–Cook constitutive model has been widely used in analyzing the dynamic responses of concrete-like materials under projectile impact and explosive loadings, the constitutive parameters of which were always referred from the original ...
Xiang-Zhen Kong +3 more
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Comparison of Johnson-Cook Model and an ISV Plasticity Damage Model in Penetration Simulation
, 2016 This paper compares Johnson-Cook model and an internal state variable (ISV) damage model developed by Bammann and Horstemeyer in simulating damage behavior of materials during penetration process.
Youssef Hammi, Yangqing Dou, Yucheng Liu
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Advanced Energy Materials, EarlyView.Amorphous SnP3 undergoes homogeneous solid‐solution sodiation, delivering exceptional cycling stability and volumetric capacity. In contrast, crystalline Sn4P3 phase‐separates into Na‐Sn and Na‐P domains, causing rapid capacity decay and severe pulverization.
Yixiang Zhang +10 more
wiley +1 more source
Keeping Pace or Falling Behind? The Depth of Latin American Trade Agreements
Applied Economic Perspectives and Policy, EarlyView.ABSTRACT This article examines whether Latin American countries are keeping pace with global trends in trade agreement depth or falling behind. Using 681 agreements (1970–2019), we develop the Depth Index of Trade Agreements (DITA) to weight provisions endogenously through factor analysis based on co‐occurrence patterns.
Raphael Gomes da Silva +2 more
wiley +1 more source
Bu çalışmada 6181A-T4 alüminyum alaşımlı sac metal malzemesinin Johnson-Cook model parametrelerinin belirlenmesi ve tahmin performansının değerlendirilmesi üzerinde çalışılmıştır. Bu tez çalışması kapsamında LS-DYNA analiz yazılımı ve Johnson-Cook modeli
Ecenur ÖZTÜRK
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