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Creep constitutive model of strain energy density considering the whole process of creep deformation. [PDF]

open access: yesPLoS ONE
Aiming at the problem that the traditional creep model is difficult to reflect the characteristics of accelerated creep stage of rock, the influence of stress state on accelerated creep is fully considered, and a constitutive model which can describe ...
Yuemei Li
doaj   +3 more sources

A Core Damage Constitutive Model for the Time-Dependent Creep and Relaxation Behavior of Coal [PDF]

open access: goldEnergies, 2022
The creep and stress relaxation behaviors of coal are common in coal mining. The unified constitutive model is suitable to describe and predict both the creep and relaxation evolution characteristics of rocks.
Tingting Cai   +3 more
doaj   +2 more sources

Constitutive modeling of creep properties of Aluminum 6061 Alloy [PDF]

open access: diamondIOP Conference Series: Materials Science and Engineering, 2018
A novel mathematical model is presented for determination of creep behavior of Aluminum 6061 alloy subjected to constant-stress uniaxial tensile creep experiment. The methodology employed to obtain the constants is by conducting experiments at the temperature range of 573 K to 673 K (300°C to 400°C) at different stress intervals 64.5 MPa and 98.1 MPa ...
S. Shivakumar   +2 more
openalex   +2 more sources

Research on Unsteady Burgers Creep Constitutive Model and Secondary Development Application

open access: goldApplied Sciences
Considering the complexity and diversity of water-rich soft soil strata, indoor triaxial shear tests and creep tests were conducted on soft soil to explore its deformation law and creep characteristics.
Ruonan Zhu   +4 more
doaj   +2 more sources

Time-Dependent Creep Constitutive Model of Roadway Surrounding Rock Based on Creep Parameters

open access: yesGeofluids, 2022
In order to better study the creep deformation characteristics of rock under different stresses, the generalized Burgers model was used as the basic model after analyzing the creep characteristics of rock and its relationship with stress and strain, and ...
Yukun Ma   +4 more
doaj   +2 more sources

Research on the evolution characteristics of creep energy in rubber concrete and the damage constitutive model [PDF]

open access: yesScientific Reports
To investigate the evolution law of energy and the damage constitutive model of concrete with different rubber replacement ratios under uniaxial creep, this paper systematically studied the creep energy evolution law of rubber concrete using uniaxial ...
Xiaodie Liu, Lei Cui, Zhixi Liu
doaj   +2 more sources

New perspective on the creep characteristic of fiber–dependent shape memory polymers: variable–order fractional constitutive model

open access: goldJournal of Materials Research and Technology, 2023
With the aim of describing and explaining the creep tensile property of shape memory polymers (SMPs) better, a variable--order fractional creep constitutive model with fewer parameters and good simulation performance was constructed on the basis of ...
Guo Shiru   +6 more
doaj   +2 more sources

Some consequences of stress range dependent constitutive models in creep [PDF]

open access: yes, 2010
Studies of the behaviour of structural components at high temperature subject to creep have a long history and their behavioural characteristics, certainly for constant and cyclic load, well established.
Boyle, James
core   +4 more sources

A non-unified viscoplastic constitutive model based on irreversible thermodynamics and creep-fatigue life prediction for Type 316 stainless

open access: goldMaterials Research Express, 2022
In this work, to describe the cycle behavior considering fatigue-creep interaction, a non-unified viscoplastic constitutive model for 316 stainless steel is derived within the irreversible thermodynamic framework.
Yehui Cui   +3 more
doaj   +2 more sources

Experimental studies and constitutive modelling of anelastic creep recovery during creep age forming

open access: yesProcedia Engineering, 2017
This paper presents a study of anelastic creep recovery during creep-ageing of an aluminium alloy AA7050-TAF. Uniaxial Creep-Ageing and Recovery Test (CART) was used to characterise the influence of anelastic creep strain on total creep deformation for ...
Li, Y   +4 more
core   +3 more sources

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