Accuracy of Stress Analysis Using Numerical Integration of Elastic Half-Space

Abstract:

In case of constructions placed on subsoil, it is necessary to create a rigidity matrix for the element subsoil. That rigidity matrix should be then added up in respective positions with the rigidity matrix of an element. To clarify the proposed model of the subsoil, a method is derived for determination of vertical subsoil stress analysis under any shape of a slab construction by means of numerical integration and theory of isoparametric elements using the Jacobian transformation. This approach is rather original and represents the key contribution of this work in interaction solutions. Using the proposed approach, the method can be employed for any shape of a finite element.

• Periodical: Applied Mechanics and Materials (Volumes 300-301)
• Pages: 1127-1135
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.300-301.1127
• Online since: February 2013
• Authors: Radim Čajka
• Keywords: Finite Element Method (FEM), Foundation Structure, Gauss Numerical Integration, Isoparametric Elements, Linear Half-Space, Soil-Structure Interaction (SSI)

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