Characterization of Energy Dissipation during Cyclic Loading of a Sand Damper
Publication: Geo-Congress 2024
ABSTRACT
This study utilizes the discrete element method (DEM) to investigate the mechanical behavior of a pressurized sand damper (PSD) and characterizes the dissipated energy under cyclic loading. The idea of a PSD is to exploit the increase in shearing resistance of sand under external pressure and the associated ability to dissipate energy through interparticle contact sliding. DEM employs a simple linear contact model for the entire assembly and utilizes irregularly shaped particles to mimic the behavior of sand grains. The series of DEM simulations reported herein examine the effects of multiple parameters on the magnitude of dissipated energy. These parameters include stroke amplitude, grain size distribution, the magnitude of pressure imposed on the sand, and different geometric configurations of the PSD. The results reveal that the main energy dissipation mechanism is interparticle frictional sliding in the sand. The numerical results compare favorably with experimental data recorded from a PSD that was subjected to cyclic testing.
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REFERENCES
Lu, Z., Wang, Z., Masri, S. F., and Lu, X. (2018). “Particle impact dampers: Past, present, and future.” Structural Control and Health Monitoring, 25(1), e2058.
Itasca. (2018). PFC3D (Particle Flow Code in 3 Dimensions). version 6.0., Minneapolis: ICG.
Iwashita, K., and Oda, M. (1998). “Rolling resistance at contacts in simulation of shear band development by dem.” Journal of Engineering Mechanics, 124(3), 285–292.
Kalfas, K. N., Makris, N., and El Shamy, U. (2023). “Assessment of the Effect of Design Parameters of Pressurized Sand Dampers from Component Testing.” Journal of Engineering Mechanics, 149(10), 04023072.
Makris, N., Palios, X., Moghimi, G., and Bousias, S. (2021). “Pressurized sand damper for earthquake and wind engineering: Design, testing, and characterization.” Journal of Engineering Mechanics, 147(4), 04021014.
Sabi, E., El Shamy, U., and Makris, N. (2023). Numerical simulation of the force output of a pressurized sand damper under cyclic loading. Journal of Sound and Vibration, 553, 117666.
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Published online: Feb 22, 2024
ASCE Technical Topics:
- Analysis (by type)
- Continuum mechanics
- Cyclic loads
- Discrete element method
- Dynamic loads
- Dynamics (solid mechanics)
- Energy dissipation
- Engineering fundamentals
- Engineering mechanics
- Geomechanics
- Geotechnical engineering
- Methodology (by type)
- Numerical methods
- Power spectral density
- Sandy soils
- Soil dynamics
- Soil mechanics
- Soil pressure
- Soil properties
- Soils (by type)
- Solid mechanics
- Statistical analysis (by type)
- Structural dynamics
- Thermodynamics
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