Results 51 to 60 of about 2,838 (227)

A simplified creep-reverse plasticity solution method for bodies subjected to cyclic loading

open access: yes, 2004
An extension of the upper bound shakedown theorem to load histories in excess of shakedown has been applied recently to the evaluation of a ratchet limit and the varying plastic strain magnitudes associated with a varying residual stress field. Solutions
Chen, Haofeng, Ponter, Alan R.S.
core   +1 more source

*OH Adsorption‐Mediated Electrochemical Oxidation of 5‐Hydroxymethylfurfural to Selective 2,5‐Furandicarboxylic Acid at pH 12

open access: yesAdvanced Science, Volume 13, Issue 10, 18 February 2026.
Under the weakly alkaline condition, at pH 12, the *OH adsorption–mediated mechanism of direct aldehyde oxidation is demonstrated to complete HMF oxidation to FDCA, obtaining >95% selectivity and yield. In OH−‐deficient media, high FDCA selectivity is achieved on the CuO/NiOOH interface, a synergistic active site, where Cu enhances *OH utilization, and
Eunchong Lee   +8 more
wiley   +1 more source

Effect of Surface Traction on the Shakedown Limit under Moving Surface Loads

open access: yes, 2006
The effect of repeated surface friction on the shakedown limits for an isotropic, homogeneous Tresca material is examined in this paper using a lower bound finite element and mathematical programming approach.
Shiau, Jim, Jim Shiau
core   +1 more source

Ratchet analysis of structures under a generalised cyclic load history

open access: yes, 2014
This paper introduces a new approach based upon the Linear Matching Method in order to obtain the ratchet limit of structures subjected to an arbitrary thermo-mechanical load history. This method varies from the traditional Linear Matching Method ratchet
Lytwyn, Michael   +5 more
core   +1 more source

Shakedown analysis method for composites based on homogenization theory

open access: yes工程科学学报, 2019
Direct methods of plastic analysis are widely used in composites analysis to determine material strength for safety assessment or lightweight optimization design.
Fang QIN   +3 more
doaj   +1 more source

Impact of Cyclic Loading on Shakedown in Cohesive Soils—Simple Hysteresis Loop Model

open access: yesApplied Sciences, 2020
The objective of this study is to characterize the permanent deformations and to present a mathematical model that enables the prediction of permanent strain during cyclic loading. First, laboratory cyclic triaxial tests are conducted on sandy silty clay
Andrzej Głuchowski, Wojciech Sas
doaj   +1 more source

Memory of Stress History in Single and Two Surface Plasticity for Granular Soils

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 2, Page 597-612, 10 February 2026.
ABSTRACT Recent studies have identified limitations in Manzari and Dafalias' 1997 and 2004 sand plasticity models, particularly regarding one‐way unloading/reloading and ratcheting loading modes. These models are widely accepted as bounding surface models in the geotechnical engineering community; thus, concerns have arisen about a fundamental lack of ...
Alexandros L. Petalas
wiley   +1 more source

Structural integrity assessment of superheater outlet penetration tubeplate

open access: yes, 2009
In recent years, the Linear Matching Method (LMM) has been well developed for the integrity assessment of the component subjected to cyclic thermal and mechanical loads.
Haofeng Chen   +3 more
core   +1 more source

Influence of Asphalt Emulsion Stabilization on Pavement Structural Behavior and Life Cycle Assessment (LCA)

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
Assessing pavement sustainability requires jointly evaluating structural performance and environmental impacts, yet these dimensions are often analyzed separately. This study proposes an integrated framework combining mechanistic–empirical pavement design and life cycle assessment (LCA) to quantify the structural–environmental trade‐off associated with
Alexandre Simas de Medeiros   +3 more
wiley   +1 more source

Charge Compensation Mechanisms in Ni‐Rich NMC Cathodes

open access: yesBatteries &Supercaps, Volume 8, Issue 12, December 2025.
Understanding charge compensation in nickel‐rich NMC cathodes is crucial for optimizing electrochemical performance. This study uses various spectroscopic techniques to investigate the correlation between transition metal oxidation states and Li depth profile in NMC811.
Jesus Díaz‐Sánchez   +12 more
wiley   +1 more source

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