Results 21 to 30 of about 526 (174)

Dynamic bearing capacity of a lattice girder in regard to cyclical impulse loads [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2015
This paper discusses the behavior of the statically single undetermined steel lattice girder under the pointed node load. This load action has the nature of the repeating cycles of the pulse[i]I = P·τ[/i][sub][i]0[/i][/sub]. For the assumed time [i]τ[/i][
Aneta Brzuzy
doaj   +1 more source

<sup>*</sup>OH Adsorption-Mediated Electrochemical Oxidation of 5-Hydroxymethylfurfural to Selective 2,5-Furandicarboxylic Acid at pH 12. [PDF]

open access: yesAdv Sci (Weinh)
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
Lee E   +8 more
europepmc   +2 more sources

Experimental and Numerical Evaluation of Residual Displacement and Ductility in Ratcheting and Shakedown of an Aluminum Beam

open access: yesApplied Sciences, 2020
Safety assessment of structures can be obtained employing limit design to overcome uncertainties concerning actual response due to inelastic constitutive behavior and more generally to non-linear structural response and loads’ random variability.
Simone Palladino   +5 more
doaj   +1 more source

A study on plastic strain accumulation caused by traveling of temperature distribution synchronizing with temperature rise

open access: yesMechanical Engineering Journal, 2016
The prevention of excessive deformation by thermal ratcheting is important in the design of high-temperature components of fast breeder reactors (FBR). This includes evaluation methods for a new type of thermal ratcheting caused by an axial traveling of ...
Satoshi OKAJIMA
doaj   +1 more source

Characteristics of cumulative plastic strain and critical dynamic stress of frozen clay under principal stress rotation

open access: yesYantu gongcheng xuebao, 2023
As the foundation of cold region projects and the supporting wall of artificial freezing projects, the frozen soil often bears the disturbance of dynamic loads.
ZHANG Binlong 1, 2, WANG Dayan 2, MA Wei 2, LEI Lele 3, ZHOU Zhiwei 2
doaj   +1 more source

Experimental Research on the Repeated Impacts Behavior of Aluminum Corrugated-Core Sandwich Structures

open access: yesShock and Vibration, 2022
Engineering structures in aviation and marine experience complex loads and are often affected by repeated impact loads. The damage accumulated from deflection in the process of repeated impact will often seriously affect the safety of the structure.
Yang Zeng, Jingxi Liu, Yanjie Zhao
doaj   +1 more source

ELASTOPLASTIC TOPOLOGY OPTIMIZATION AND CYCLICALLY LOADED STRUCTURES VIA DIRECT METHODS FOR SHAKEDOWN

open access: yes, 2021
International audienceFor the first time, the lower bound shakedown theorem is integrated into a level set based topol-ogy optimization framework to identify lightweight elastoplastic designs.
Deaton, Joshua   +3 more
core   +1 more source

Thermo-Electric Powered High Energy-Density Hybrid Supercapattery for Driving Overall Water Splitting: A Novel Trifunctional Builder for Self-Powered Hydrogen Production. [PDF]

open access: yesSmall
A novel, cost‐effective, and trifunctional self‐powered aqueous electrochemical energy device (SAEED) is successfully constructed by integrating asymmetric supercapattery (ASD) and water‐electrolyzer (WE) devices with a thermoelectric generator (TEG) utilizing the direct anchoring of Cu3Mo2O9 (CMD) nanostructures on Ni‐foam as an electrode prepared by ...
Liyakath Ali NUH   +6 more
europepmc   +2 more sources

Work-related sexual and gender harassment: conceptual challenges and the need for evidence-based prevention

open access: yesScandinavian Journal of Work, Environment & Health, 2023
The topic of work-related sexual harassment has gained renewed attention in recent years following the public accounts of sexually harassing experiences – many of which were work-related – that emerged during the #MeToo movement beginning in October 2017
Ida EH Madsen, Maj Britt D Nielsen
doaj   +1 more source

Repeated loading model for elastic–plastic contact of geomaterial

open access: yesAdvances in Mechanical Engineering, 2018
A new nonlinear hysteretic model with considering the loading, unloading, and reloading processes is developed based on Drucker–Prager yield criterion and finite-element analysis.
Jian Wang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy