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Critical Dynamic Stress and Cumulative Plastic Deformation of Calcareous Sand Filler Based on Shakedown Theory

open access: yesJournal of Marine Science and Engineering, 2023
Calcareous sand is a special marine soil rich in calcium carbonate minerals, characterized by brittle particles. It is, therefore, widely used as a filling material in the construction of islands and reefs.
Kangyu Wang   +4 more
doaj   +4 more sources

Predicting the Critical Stress for Initiation of Dynamic Recrystallization

open access: yesISIJ International, 2006
The critical stress for initiation of dynamic recrystallization (DRX) can be identified from the inflection point on the strain hardening rate (qds/de) versus flow stress (s) curve. This kind of curve can be described by an equation that fits the experimental q-s data from zero to the peak stress.
John Jonas, Abbas Najafizadeh
exaly   +3 more sources

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   +2 more sources

PREDICTION OF CRITICAL STRESS AND STRAIN FOR THE ONSET OF DYNAMIC RECRYSTALLIZATION IN PLAIN CARBON STEELS

open access: yesIranian Journal of Materials Science and Engineering, 2015
The aim of the present study is the prediction of critical conditions (including critical strain and flow stress) for the initiation of dynamic recrystallization during thermo-mechanical processing of plain carbon steels.
M. Shaban Ghazani, A. Vajd, B. Mosadeg
doaj   +2 more sources

Experimental Investigation on the Critical Dynamic Stress of Frozen Silty Clay Under Different Temperature and Moisture Conditions

open access: yesApplied Sciences
In this paper, a comprehensive series of dynamic triaxial tests were conducted to delve into the influence of temperature and moisture content on the behavior of frozen silty clay.
Jiahui Wang, Jiahao Ding, Yingying Zhao
doaj   +3 more sources

Determination of the Critical Stress Associated with Dynamic Phase Transformation in Steels by Means of Free Energy Method

open access: yesMetals, 2018
The double differentiation method overestimates the critical stress associated with the initiation of dynamic transformation (DT) because significant amounts of the dynamic phase must be present in order for its effect on the work hardening rate to be ...
Clodualdo Aranas   +4 more
doaj   +3 more sources

Determination of the impact of strain rate on dynamic recrystallization of hot-deformed 2205 duplex stainless steel [PDF]

open access: yesMATEC Web of Conferences, 2023
2205 duplex stainless steel suffers poor hot workability, especially whe1981hot-deformed. This investigation aims to determine the strain rate’s effect on the material’s dynamic recrystallization after heat treatment.
Baruwa A. D., Gonya E., Makhatha M. E.
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

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