On the creep problem of soft-rigid interfaces: analysis of the normal contact behavior and application of creep models

Tian, Yu; Senetakis, Kostas

doi:10.1007/s10035-023-01377-0

Granular Matter

2023

DOI: 10.1007/s10035-023-01377-0

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On the creep problem of soft-rigid interfaces: analysis of the normal contact behavior and application of creep models

Yu Tian,

Kostas Senetakis

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2024

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Cited by 5 publications

References 53 publications

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Small Strain Stiffness of Sand‐Rubber Mixtures With Particle Size Disparity Effect

Liu,

Yin

2024

Num Anal Meth Geomechanics

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This study systematically investigates the small‐strain stiffness of sand‐rubber mixtures, focusing on combined particle disparity—both larger sand with smaller rubber and smaller sand with larger rubber—using the discrete element method. The effectiveness of various state variables in capturing stiffness behavior across different rubber contents and size disparities (SDs) is evaluated. Conventional state variables developed for natural sands, such as void ratio and mechanical void ratio were found to be less effective in describing the small‐strain stiffness characteristics of sand‐rubber mixtures due to distinct properties of rubber. This study then demonstrates that the stiffness contribution of rubber materials could be negligible, emphasizing that particle property disparity is more significant than SD between sand and rubber materials. Therefore, an adapted state variable, considering only active sand particles, shows improved performance for capturing the correlation between small‐strain stiffness with increasing rubber contents, suggesting its potential utility over conventional variables. Additionally, a refined void ratio, including inactive sand particles but excluding rubber, offers a practical alternative for capturing small‐strain stiffness in experimental and engineering practices, aligning with previous experimental observations. These findings underscore the need for developing more effective state variables that accurately reflect the interactions within heterogeneous materials like sand‐rubber mixtures.

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Small Strain Stiffness of Sand‐Rubber Mixtures With Particle Size Disparity Effect

Liu,

Yin

2024

Num Anal Meth Geomechanics

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From micro to macro: Creep behaviour and closed-form expression of viscoelastic parameters for a rheological particle assembly

Zhou,

Wang,

Jiang

et al. 2024

Computers and Geotechnics

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A micromechanical study on sand − FRP interface subjected to cyclic loading

Tian,

Li,

Yin

et al. 2024

Composite Structures

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On the creep problem of soft-rigid interfaces: analysis of the normal contact behavior and application of creep models

Cited by 5 publications

References 53 publications

Small Strain Stiffness of Sand‐Rubber Mixtures With Particle Size Disparity Effect

Small Strain Stiffness of Sand‐Rubber Mixtures With Particle Size Disparity Effect

From micro to macro: Creep behaviour and closed-form expression of viscoelastic parameters for a rheological particle assembly

A micromechanical study on sand − FRP interface subjected to cyclic loading

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