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- Title
Seismic response of reduced micropolar elastic half-space.
- Authors
Gade, Maheshreddy; Raghukanth, Stg
- Abstract
This paper explores reduced micropolar theory to simulate ground motion during an earthquake. In this theory, rotational motions are kinematically independent of translational motions. Analytical expressions for ground displacement and rotational motions due to a buried seismic source are presented in this paper. This theory requires two additional material constants which characterise the microstructure of the medium compared with linear elastic theory. Ground motions are simulated for an earthquake of magnitude ( M) 5.0. The sensitivity of ground motion to these new material constants is reported. It is observed that rotations are sensitive to microstructure of the medium. A comparison with recorded rotations of the M 5.2 Izu peninsula, Japan event is also presented in this article.
- Subjects
IZU Peninsula (Japan); ROTATIONAL motion (Rigid dynamics); SEISMIC response; EARTHQUAKE simulators; TRANSLATIONAL motion; MATHEMATICAL models
- Publication
Journal of Seismology, 2016, Vol 20, Issue 3, p787
- ISSN
1383-4649
- Publication type
Article
- DOI
10.1007/s10950-016-9557-9