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- Title
Thermodynamic Constitutive Model of the Gas Hydrate-Bearing Sediments Considering Anisotropy.
- Authors
Liu, Lei; Zhou, Bo; Zhu, Xiuxing; Wang, Haijing; Huang, Yun
- Abstract
This article discusses the thermodynamic constitutive model of gas hydrate-bearing sediments (GHBS) considering anisotropy. The model incorporates anisotropy and accounts for the effects of hydrate swelling and cementing, providing more accurate predictions of the mechanical properties of GHBS. The text also highlights the importance of considering anisotropy in GHBS and discusses various constitutive models for GHBS. It discusses the filling and cementing effects of hydrates in GHBS and the densification mechanism of GHBS. The text introduces an anisotropic thermodynamic model and discusses the relationship between mechanical hydrate saturation and plastic shear strain. It also discusses the thermomechanical theory and the thermodynamic constitutive model of GHBS. The text provides mathematical equations and formulas to describe these concepts. It discusses the analysis parameters of yield surfaces in GHBS and the determination of the anisotropic evolution law. The proposed constitutive model is validated and exhibits good agreement with experimental data. The document also includes references to various scientific papers related to the mechanical properties and behavior of GHBS.
- Subjects
ANISOTROPY; SEDIMENTS; SEISMIC anisotropy; POISSON'S ratio; HELMHOLTZ free energy; GAS reservoirs
- Publication
International Journal of Applied Mechanics, 2024, Vol 16, Issue 2, p1
- ISSN
1758-8251
- Publication type
Article
- DOI
10.1142/S1758825124500170