Results 1 to 10 of about 8,549 (303)

Study on accumulative plastic deformation of cement-fly ash improved subgrade coarse-grained soil under heavy-haul traffic loads and relative prediction based on PSO-ANN [PDF]

open access: yesScientific Reports
In order to study the accumulative plastic deformation characteristics of coarse-grained subgrade soil improved by cement-fly ash under heavy-haul traffic loads, and propose the corresponding prediction model, a series of dynamic performance tests were ...
Zhou Wenquan   +5 more
doaj   +2 more sources

Tests and Finite Element Simulation of Yield Anisotropy and Tension-Compression Strength Difference of an Extruded ZK60 Mg Alloy

open access: yesMetals, 2021
Multiroute yield experiments were carried out on extruded ZK60 magnesium alloy samples under 200 °C and strain rate of 10−2 s−1 by a thermomechanical simulator.
Jun Wang, Yan Tang, Jianhui Ye, Chao Xie
doaj   +1 more source

Low Cycle Fatigue Life Assessment Based on the Accumulated Plastic Strain Energy Density [PDF]

open access: yesMaterials, 2021
The accumulated plastic strain energy density at a dangerous point is studied to estimate the low cycle fatigue life that is composed of fatigue initiation life and fatigue crack propagation life. The modified Ramberg–Osgood constitutive relation is applied to characterize the stress–strain relationship of the strain-hardening material.
Yifeng Hu   +3 more
openaire   +2 more sources

Accumulative Plastic Deformation of the Improved Completely Weathered Granite Subgrade in High-Speed Railway

open access: yesAdvances in Materials Science and Engineering, 2022
The improvement and reuse of completely weathered granite (CWG) with poor engineering properties for backfilling embankments can help protect the environment and bring great economic benefits.
Changzi Qu   +5 more
doaj   +1 more source

Cyclic Degradation Characteristics of Undisturbed Soft Clay considering Anisotropy

open access: yesAdvances in Materials Science and Engineering, 2021
The stress-strain characteristics of soil depend primarily on the previous stress history and stress path, thus related to both the stress magnitude and direction.
Miaomiao Sun   +3 more
doaj   +1 more source

Critical Dynamic Stress and Accumulative Deformation Evolution of Embankment Silty Clay Subjected to Cyclic Freeze-Thaw

open access: yesShock and Vibration, 2021
In cold regions, the permanent settlement of embankment is mainly caused by the repeated freeze-thaw process and long-term repeated train loads. Meanwhile, the critical dynamic stress (σdcr) is an important parameter index for determining embankment ...
Lina Wang   +5 more
doaj   +1 more source

Effect of Pre-existing Nano Sized Precipitates on Microstructure and Mechanical Property of Al-0.2wt% Sc Highly Deformed by ARB Process [PDF]

open access: yesJournal of Ultrafine Grained and Nanostructured Materials, 2014
The effect of pre-existing nano sized precipitates on the mechanisms and rate of grain refinement has been investigated during the severe plastic deformation.
Ehsan Borhani, Hamidreza Jafarian
doaj   +1 more source

Strength evolution during accumulative roll bonding of the metal matrix composite

open access: yesJournal of Materials Research and Technology, 2023
The strength evolution during the processing/cycling of the metal matrix composite through accumulative roll bonding (ARB) as a severe plastic deformation method is studied by performing a twofold model.
H. Parvin, M. Kazeminezhad
doaj   +1 more source

Strengthening of AA5754 aluminum alloy by DRECE process followed by annealing response investigation [PDF]

open access: yes, 2020
In this study, a dual rolls equal channel extrusion (DRECE) process has been applied for improving the mechanical properties of the 5754 alloy. Supplementary experiments involving metallography, electron backscattered diffraction (EBSD), and XRD tests ...
Benedyk, Marcin   +7 more
core   +1 more source

Formability of the 5754-aluminum alloy deformed by a modified repetitive corrugation and straightening process [PDF]

open access: yes, 2020
Sheets of 5754-aluminum alloy processed by a modified repetitive corrugation and straightening (RCS) process were tested in order to measure their formability. For this purpose, forming limit curves were derived.
Alfonso, Ismeli   +6 more
core   +2 more sources

Home - About - Disclaimer - Privacy