A time-dependent anisotropic model for argillaceous rocks: application to an underground excavation in Callovo-Oxfordian claystone [PDF]
, 2017 The paper presents a constitutive model for argillaceous rocks, developed within the framework of elastoplasticity, that includes a number of features that are relevant for a satisfactory description of their hydromechanical behaviour: anisotropy of ...
Gens Solé, Antonio +3 more
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A fractal derivative constitutive model for three stages in granite creep
Results in Physics, 2017 In this paper, by replacing the Newtonian dashpot with the fractal dashpot and considering damage effect, a new constitutive model is proposed in terms of time fractal derivative to describe the full creep regions of granite.
R. Wang, Z. Zhuo, H.W. Zhou, J.F. Liu
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A Fractional Derivative Insight into Full-Stage Creep Behavior in Deep Coal
Fractal and FractionalThe time-dependent creep behavior of coal is essential for assessing long-term structural stability and operational safety in deep coal mining. Therefore, this work develops a full-stage creep constitutive model. By integrating fractional calculus theory
Shuai Yang +5 more
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Estimation of high temperature low cycle fatigue on the basis of inelastic strain and strainrate [PDF]
Fatigue life at elevated temperature can be predicted by introducing parametric values obtained from monotonic constitutive behavior into the Universal-Slopes Equation.
Berkovits, A.
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Preliminary analysing of experimental data for the development of high Cr Alloy Creep damage Constitutive Equations [PDF]
, 2012 This conference paper presents the current research of preliminary analysing of experimental data for the development of high Cr Alloy Creep damage Constitutive Equations (such as P91 alloy). Firstly, it briefly introduces the background of general creep
An, Lili +3 more
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Anisotropic creep model for soft soils [PDF]
, 2008 In this paper a new anisotropic model for time-dependent behaviour of soft soils is presented. The formulation is based on a previously developed isotropic creep model, assuming rotated Modified Cam Clay ellipses as contours of volumetric creep strain ...
Academy of Finland Grant 210744 (Funder) +6 more
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A constitutive model with damage for high temperature superalloys [PDF]
A unified constitutive model is searched for that is applicable for high temperature superalloys used in modern gas turbines. Two unified inelastic state variable constitutive models were evaluated for use with the damage parameter proposed by Kachanov ...
Sherwood, J. A., Stouffer, D. C.
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Stress and Fracture Analyses Under Elastic-plastic and Creep Conditions: Some Basic Developments and Computational Approaches [PDF]
, 1983 A new hybrid-stress finite element algorith, suitable for analyses of large quasi-static deformations of inelastic solids, is presented. Principal variables in the formulation are the nominal stress-rate and spin.
Atluri, S. N. +2 more
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Stress Relaxation Behaviour and Creep Constitutive Equations of SA302Gr.C Low-Alloy Steel
High Temperature Materials and Processes, 2018 In order to study the stress relaxation behaviour of SA302Gr.C low-alloy steel, the stress relaxation experiments were performed at the temperatures of 400, 500 and 620 °C with the constant strain of 0.5 %.
Shen Wenfei +4 more
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A Fractional Creep Constitutive Model Considering the Viscoelastic-Viscoplastic Coexistence Mechanism. [PDF]
Materials (Basel), 2023 Zhao J, Zhao W, Xie K, Yang Y.
europepmc +1 more source