Results 231 to 240 of about 3,008 (259)
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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 Metals Subjected to Cyclic Creep
Journal of Engineering Materials and Technology, 1991This paper presents a constitutive model which can be used to predict creep strains and rupture lives of engineering materials undergoing entire creep process, including primary, secondary, and tertiary stages. The model is constructed on the basis of two evolution rules: (1) the continuum damage evolution, and (2) the evolution of internal stresses ...
Z. L. Gong, T. R. Hsu
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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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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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Testing and Constitutive Modeling of Creep for Wireline Cables
Volume 10: Mechanics of Solids, Structures, and Fluids; Micro- and Nano-Systems Engineering and PackagingAbstract Wireline cables used in the oil and gas industry can experience substantial length change due to creep during downhole conditions such as elevated temperature, long time duration, extended well depth, and heavy tool weight. Fast and accurate prediction of the length of wireline cables is important for positioning downhole tools ...
Haitao Zhang +4 more
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Internal state variable creep constitutive model for the rock creep behavior
Bulletin of Engineering Geology and the Environment, 2022Liping Qiao +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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The nonlinear creep behavior and creep damage constitutive model of coal rock
Arabian Journal of Geosciences, 2023Baoyun Zhao +6 more
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Research on Creep Constitutive Model and Creep-Life Calculation Method for Steels
Journal of Materials in Civil Engineering, 2023Xi Luo, Mingchen Huo
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On time integration of viscoplastic constitutive models suitable for creep
International Journal for Numerical Methods in Engineering, 2001AbstractCreep of critical components such as electrical solder connections may occur over long periods of time. Efficient numerical simulations of such problems generally require the use of quasi‐static formulations with conjugate‐gradient techniques for solving the large number of algebraic equations.
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