Reduced micropolar half-space subjected to earthquake sources Online publication date: Wed, 22-May-2024
by Mohammad Atif; S.T.G. Raghukanth; S.R. Manam
International Journal of Earthquake and Impact Engineering (IJEIE), Vol. 4, No. 2, 2024
Abstract: The paper makes a novel attempt to present a mathematical model for a buried source in the homogeneous reduced micropolar half-space and to study the propagation of waves when half-space is subjected to an arbitrary harmonic load. Specific solutions are also discussed in the case when the force field is distributed uniformly in vertical directions over a circular region. The obtained solutions are numerically evaluated to compare displacements and rotations between classical elastic half-space (EHS) and reduced micropolar half-space (RMHS). As an application of the proposed model, the Wutai 2012 and Central Italy 2016 earthquakes are simulated, assuming the source as a point moment tensor. A finite-fault rupture simulation is also presented for the Pocito, Argentina earthquake of 6.4 Mw, which occurred on 19 January 2021. The application of the proposed model is also shown in the field of impact with a brief discussion of source function.
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