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Shear creep tests and creep constitutive model of marble with structural plane
European Journal of Environmental and Civil Engineering, 2017The paper aims at investigating the shear creep property and creep model of marble with structural plane.
Zhi-Lei He +3 more
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Unified Constitutive Modeling of Haynes 230 for Thermomechanical Fatigue-Creep and Creep Behavior
Volume 9: Mechanics of Solids, Structures, and Fluids; Micro- and Nano-Systems Engineering and Packaging; Safety Engineering, Risk, and Reliability Analysis; Research Posters, 2022Abstract Research on the macroscopic phenomenological constitutive model of Haynes 230, which is frequently used as an aero engine combustor liner material, still has important engineering significance. Based on a proposed model for isothermal fatigue and fatigue-creep, a constitutive model is developed which can simulate the ...
Wenyu Cao, Hualiang Zhang
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A Constitutive Model for Anisotropic Creep Deformation
Journal of Engineering Materials and Technology, 1994Anisotropic creep behavior of polycrystalline metals under repeated stress changes is modeled from a phenomenological point of view. The creep model consists of basic constitutive equations (BCE) and an auxiliary hardening rule (AUX) to enhance the predictive capability of the BCE.
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Creep characteristics and constitutive model for frozen mixed soils
Journal of Mountain Science, 2021The uniform settle caused by the permafrost creep is still the primary problem of engineering construction in cold region. To investigate the creep characteristics of frozen soils mixed with silty clay and coarse-grained sand, several triaxial creep tests of frozen mixed soils under different conditions (temperature, confining pressure, coarse-grained ...
Bing-tang Song +4 more
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Nonlinear creep damage constitutive model for soft rocks
Mechanics of Time-Dependent Materials, 2016In some existing nonlinear creep damage models, it may be less rigorous to directly introduce a damage variable into the creep equation when the damage variable of the viscous component is a function of time or strain. In this paper, we adopt the Kachanov creep damage rate and introduce a damage variable into a rheological differential constitutive ...
H. Z. Liu +4 more
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An Improved Mechanism-Based Creep Constitutive Model Using Stress-Dependent Creep Ductility
Volume 6A: Materials and Fabrication, 2016Creep ductility which is assumed to be constant at a given temperature in many creep constitutive models, actually varies with temperature, stress level and creep strain rate, etc. In this paper, the relationship between creep ductility and stress levels of ferritic steels has been briefly discussed from the perspective of failure mechanisms. It can be
Yu Zhou +3 more
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Constitutive models of creep for lead-free solders
Journal of Materials Science, 2009The constitutive modeling of creep has been extensively studied due to the important of the creep failure mode in solder joints. However, there are very few studies that considered room temperature aging contributions in their creep modeling studies. This study investigated constitutive modeling of creep of solders by taking into account the possible ...
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Shear Creep Characteristics and Creep Constitutive Model of Bolted Rock Joints
Engineering Geology, 2023Linfeng Zhu +8 more
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Constitutive Modeling of Primary Creep Behaviour of P9 Steel
Transactions of the Indian Institute of Metals, 2015A constitutive model developed for the description of primary creep behaviour in P9 steel has been presented. The concept of stress dependent activation volume and average dislocation segment length based on Friedel statistics has been incorporated into the kinetic creep law related to dislocation glide controlled by dispersed local obstacles.
J. Christopher, B. K. Choudhary
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A Creep Constitutive Model of Dislocation Thermal Activation
1990A new creep constitutive model of dislocation thermal activation has been established in this investigation based on the creep test results, i.e., the creep rate first decreased with creep deformation until a minimum creep rate reached, and then increased with further creep deformation.
C. D. Liu, Y. F. Han, M. G. Yan
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