Results 1 to 10 of about 499 (166)

Modeling Fretting Wear Resistance and Shakedown of Metallic Materials with Graded Nanostructured Surfaces [PDF]

open access: yesNanomaterials, 2023
In applications involving fretting wear damage, surfaces with high yield strength and wear resistance are required. In this study, the mechanical responses of materials with graded nanostructured surfaces during fretting sliding are investigated and ...
Ting Yang, T. A. Venkatesh, Ming Dao
doaj   +2 more sources

Effect of Potassium-Ion-Triggered Double Helix Aggregation on Shakedown Behavior of κ-Carrageenan/Polyacrylamide Hydrogel [PDF]

open access: yesGels
This study investigates the effect of potassium ion (K+) concentration on double helix aggregation in κ-carrageenan-based hydrogels, which significantly influences their shakedown behavior.
Xueqi Zhao   +7 more
doaj   +2 more sources

Lower shakedown limits of layered road structures under moving harmonic loads

open access: yesYantu gongcheng xuebao, 2022
The shakedown limits of layered road structures subjected to a moving harmonic load are studied. The inverse Fourier transform and the numerical integration are used to obtain the dynamic responses of a three-dimensional layered road structure in the ...
LIN Yuan-xiang , ZHENG Jun-jie , HOU Ru-yi , FANG Hao
doaj   +1 more source

A Shakedown Strength Based Parametric Optimization Technique and Its Application on an Airtight Module

open access: yesChinese Journal of Mechanical Engineering, 2022
In aerospace engineering, design and optimization of mechanical structures are usually performed with respect to elastic limit. Besides causing insufficient use of the material, such design concept fails to meet the ever growing needs of the light weight
Songhua Huang   +4 more
doaj   +1 more source

FEM shakedown analysis of structures under random strength with chance constrained programming

open access: yesVietnam Journal of Mechanics, 2022
Direct methods, comprising limit and shakedown analysis, are a branch of computational mechanics. They play a significant role in mechanical and civil engineering design.
Ngoc Trinh Tran   +6 more
doaj   +1 more source

Numerical simulation of ultimate strength of hull plate based on critical state of elastic shakedown under cyclic loading

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectivesIn order to improve the accuracy of the ultimate strength evaluation of hull plates, this study carries out a nonlinear finite element numerical simulation of the ultimate strength of ship hull plates under cyclic loading based on the critical ...
Huwei CUI, Zemin CHEN, Qiyin DING
doaj   +1 more source

The study of shakedown analysis for Von-Mises half-space

open access: yesYantu gongcheng xuebao, 2017
This paper presents shakedown analysis of a half-space obeying Von-Mises criterion under Hertz loads in plane strain model. Based on the static shakedown theorem, a rigorous shakedown solution is established by searching for the best critical residual ...
ZHUANG Yan 1, 3, WANG Meng 2, WANG Kang-yu 2
doaj   +1 more source

Residual stress redistribution during elastic shake down in welded plates

open access: yesMATEC Web of Conferences, 2018
Residual stresses are a consequence of welding in various structures such as ships and offshore structures. Residual stresses can be relaxed or redistributed according to the load levels during operation.
Chukkan Jazeel R.   +5 more
doaj   +1 more source

Tribological Study of Chisel Knives in Sandy Soil

open access: yesAgriculture, 2023
This paper presents the interaction system within the mechanical soil processing process, consisting of two large elements, the metal of the tool and the soil. Due to the two main forces acting on the chisel knives—friction and impact with the sandy soil—
Laurențiu Constantin Vlăduțoiu   +6 more
doaj   +1 more source

Shakedown of elastic-thermo-plastic structures

open access: yesComputer Assisted Methods in Engineering and Science, 2023
Recently formulated shakedown theorems for materials with temperature-dependent yield stress [1] are applied to evaluation of the elastic shakedown boundary.
Nikola Vranković   +2 more
doaj  

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