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- Title
Experimental Investigation on the Cyclic Shear Mechanical Characteristics and Dynamic Response of a Steel–Silt Interface in the Yellow River Delta.
- Authors
Yu, Peng; Dong, Jie; Guan, Yong; Wang, Qing; Jia, Shixiang; Xu, Meijun; Liu, Hongjun; Yang, Qi
- Abstract
The shear behavior and dynamic response of a steel–silt interface are significant for the safety and stability of offshore structures in the Yellow River Delta. A series of steel–silt interface cyclic shear tests under constant normal load conditions (CNL) were carried out to explore the effects of normal stress, shear amplitude, roughness, and water content on the interface shear strength, shear stiffness, and damping ratio using a large interface shear apparatus. The preliminary results showed that the amplitude of normal stress and shear amplitude affected the interface's shear strength, stiffness, and damping ratio in a dominant manner. The roughness and water content were also crucial factors impacting the rule of shear strength, shear stiffness, and damping ratio, changing with the number of cycles. Under various scenarios, the steel–silt interface weakened distinctively, and the energy dissipation tended to be asymptotic with the cyclic shear.
- Subjects
SHEAR strength; OFFSHORE structures; STRUCTURAL stability; SHEARING force; ENERGY dissipation
- Publication
Journal of Marine Science & Engineering, 2023, Vol 11, Issue 1, p223
- ISSN
2077-1312
- Publication type
Article
- DOI
10.3390/jmse11010223