Equivalent Viscoelastic Behavior of High-Temperature Granite Under Seismic Wave

This paper investigates the equivalent viscoelastic behavior of granite after different high-temperature treatments under stress waves. The equivalent viscoelastic behavior of granite after different high-temperature treatments under dynamic conditions was investigated by the pendulum impact test, w...

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Bibliographic Details
Published in:Rock mechanics and rock engineering 2022-02, Vol.55 (2), p.967-979
Main Authors: Fan, L. F., Yang, Q. H., Wang, M., Du, X. L.
Format: Article
Language:English
Subjects:
Attenuation
Attenuation coefficients
Civil Engineering
Compression
Compression tests
Earth and Environmental Science
Earth Sciences
Equivalence
Extinction coefficient
Geophysics/Geodesy
Granite
High temperature
Impact tests
Longitudinal waves
Loss modulus
Original Paper
P-waves
Pendulums
Seismic waves
Storage modulus
Stress waves
Temperature
Viscoelasticity
Wave attenuation
Wave number
Wavelengths
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Summary:This paper investigates the equivalent viscoelastic behavior of granite after different high-temperature treatments under stress waves. The equivalent viscoelastic behavior of granite after different high-temperature treatments under dynamic conditions was investigated by the pendulum impact test, while its quasi-static behavior was investigated by the uniaxial compression test. The attenuation coefficient, wave number, storage modulus and loss modulus of granite after high-temperature treatments were determined based on the pendulum impact test. A modified three-element model was proposed to describe the relationship between the equivalent viscoelastic behavior of granite and temperature. The proposed model was validated by comparing the storage modulus and loss modulus predicted by the proposed model and those based on the pendulum impact test. The results show that the attenuation coefficient and wave number increase as temperature increases. While the storage modulus and loss modulus decrease as the temperature increases. The proposed model could describe the storage modulus and loss modulus of granite after high-temperature treatment with acceptable accuracy.
ISSN:0723-2632
1434-453X
DOI:10.1007/s00603-021-02677-8