Development of a modified Mooney-Rivlin constitutive model for rubber to investigate the effects of aging and marine corrosion on seismic isolated bearings

Zhao, Guifeng; Ma, Yuhong; Li, Yanmin; Luo, Jiarun; Du, Chang Long

doi:10.1007/s11803-017-0417-6

Cited by 25 publications

(7 citation statements)

References 14 publications

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“…The spherical sealing structure studied here adopts the O-ring as the main sealing ring, its main failure mode is leakage. In this section, based on the strain energy density function consisting of invariants of the left Cauchy-Green deformation tensor and comparing the properties of different models of hyper-elastic materials [16], the Mooney-Rivlin [17,18] constitutive equation for the rubber is determined. The O-ring is physically squeezed to generate a certain amount of pre-compression and is fixed in position by the sealing groove.…”

Section: Mooney-rivlin Constitutive Model Of O-ringmentioning

confidence: 99%

Structural Analysis and Experimental Study on the Spherical Seal of a Subsea Connector Based on a Non-Standard O-Ring Seal

Liu

Yun

Jiao

et al. 2022

JMSE

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Underwater oil and gas pipelines are prone to alignment differences and angle offsets during docking, and the spherical flange connector can address this problem. Its main function is to enable compensation of the different angles of the pipeline during docking and to apply a non-standard spherical sealing structure using O-rings to the connection. In this paper, the study of a spherical sealing structure using O-rings was based on a spherical structural model of the connector. The Mooney–Rivlin constitutive equation and material parameters of the O-ring were determined according to nonlinear theory. The structure of the non-standard spherical sealing groove was designed and analysed with reference to the standard sealing groove, the calculation expression of the spherical groove specific size was deduced, and the width and depth of the groove were determined. A finite element analysis of the non-standard O-ring sealing structure was carried out using ANSYS Workbench software; the effects of different pressures and compression ratios on the O-ring sealing performance were analysed and studied in terms of von Mises stress, contact pressure and contact width of different contact surfaces so as to determine a more reasonable compression ratio in the sealing structure. Finally, the theoretical analysis of the non-standard spherical sealing structure using O-rings was validated by testing, and it was proven that it could maintain a good seal under high pressure.

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Section: Mooney-rivlin Constitutive Model Of O-ringmentioning

confidence: 99%

Structural Analysis and Experimental Study on the Spherical Seal of a Subsea Connector Based on a Non-Standard O-Ring Seal

Liu

Yun

Jiao

et al. 2022

JMSE

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“…The deformation process of the elastic material is reversible, and the elastic constitutive equation is mainly expressed by the strain energy function. In this study, we neglect the microstructure and molecular nature of the elastomer, and the Mooney‐Rivlin phenomenological model, which considered the elastomer as a continuous medium, was used to describe the mechanical behavior of rubber 22 …”

Section: Constitutive Modelmentioning

confidence: 99%

Numerical simulation study on the mechanical behavior of shale core and reservoir rock mass

Xiong

et al. 2020

Energy Science & Engineering

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After the hydraulic fracturing of the shale reservoir, the stress field changes during the mining process. The stress sensitivity of the reservoir affects its development capabilities. Moreover, the stress sensitivity of shale reservoirs obtained by various researchers using different experimental methods is not uniform. This study analyzes the physical background differences between reservoir rock mass and experimental core. In this study, we establish the “support structure model” of the reservoir and show that the reservoir rock body has a structural overall effect, such that the supporting effect of the surrounding rock on the overlying strata is very strong. At the same time, we also establish the transverse isotropic numerical model of the shale reservoir on the basis of the real physical background of the reservoir and the experimental physical core model on the basis of the real physical background of the core test. This study shows that the equivalent mechanical behavior of the core test in the holder is pure core compression without the support and pull of the whole rock mass structure. In the real reservoir, the reservoir rock mass has significant structural effect. The actual compression change of real reservoir mining is less than the pure compression displacement of the experimental test core. The core stress sensitivity of the conventional experimental test does not directly describe the true stress‐strain effect of the macroscopic reservoir rock mass as a structural whole. A laboratory stress‐sensitive test apparatus and method that is equivalent to the physical background of a real reservoir needs to be improved or designed.

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“…Jie et al [22] studied the changes of mechanical properties of rubber during aging, and the results showed that the tensile strength of rubber first increased and then decreased with the increase of crosslinking density during aging. e research of Zhao et al [23] shows that aging changes the constitutive parameters of rubber. Rubber is one of the three-phase components of rubberized concrete; the change of its constitutive parameters will definitely affect the mechanical properties of rubberized concrete.…”

Section: Introductionmentioning

confidence: 99%

Damage Characteristics of Uniaxial Compressed Concrete Embedded Different Aging Rubber by 3D Mesoscale Model

Cao

Liu

et al. 2022

Advances in Civil Engineering

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Rapid development of the automobile industry has brought the disposal problem of waste rubber tires. Mixing waste rubber tires into concrete can not only solve environmental problems but also improve the mechanical properties of concrete. Rubber aging is one of the main factors to affect the mechanical properties of rubberized concrete. Therefore, an FEM model of rubberized concrete in mesoscale is established in this paper. The influence of rubber aging on the uniaxial compression damage of rubberized concrete is u;studied. The results show that (1) the elastic modulus and compressive strength of rubberized concrete are negatively correlated with the aging level and content of rubber and positively correlated with the particle size of rubber. (2) After uniaxial compression of concrete enters the softening section, the crack resistance of concrete is positively correlated with the aging level and content of rubber and negatively correlated with the particle size of rubber. (3) Compared with the elastic modulus, the compressive strength of rubberized concrete is more sensitive to the change of parameters of rubber, that is, the change range of the compressive strength of rubberized concrete is always greater than the change range of its elastic modulus, when the aging level, content, and particle size of rubber change.

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Development of a modified Mooney-Rivlin constitutive model for rubber to investigate the effects of aging and marine corrosion on seismic isolated bearings

Cited by 25 publications

References 14 publications

Structural Analysis and Experimental Study on the Spherical Seal of a Subsea Connector Based on a Non-Standard O-Ring Seal

Structural Analysis and Experimental Study on the Spherical Seal of a Subsea Connector Based on a Non-Standard O-Ring Seal

Numerical simulation study on the mechanical behavior of shale core and reservoir rock mass

Damage Characteristics of Uniaxial Compressed Concrete Embedded Different Aging Rubber by 3D Mesoscale Model

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