Elastic response of a free half-space to random force excitations applied on the boundary |
| |
Authors: | I.A. Shalimova K.K. Sabelfeld |
| |
Affiliation: | Institute of Computational Mathematics and Mathematical Geophysics, Russian Acad. Sci., Lavrentieva str., 6, 630090 Novosibirsk, Russia |
| |
Abstract: | A response of an elastic half-space to random forces applied normally to the free boundary is studied. This paper is the second part of the study we presented in [I.A. Shalimova, K.K. Sabelfeld, The response of an elastic three-dimensional half-space to random correlated displacement perturbations on the boundary, Physica A 389 (21) (2010) 4436–4449] where the case of random displacements on the boundary was considered. We analyze the white noise excitations in detail, and derive explicitly the mean of the elastic energy, the strain and displacement correlation tensors. Simulation algorithms are constructed both for displacement and strain random fields, which enables us to calculate any desired statistical characteristics. |
| |
Keywords: | Elastic half-space Random excitations White noise Karhunen&ndash Loè ve expansion Partially ordered defects |
本文献已被 ScienceDirect 等数据库收录! |
|