Three Dimensional Finite Element Analysis of Concrete


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Title: Three Dimensional Finite Element Analysis of Concrete

Author(s): J. T. Dewolf and J. Kou

Publication: Special Publication

Volume: 98


Appears on pages(s): 95-116

Keywords: bearing capacity; concretes; cracking (fracturing); foundations; finite element method; structural analysis; Structural Research

Date: 3/3/1987

Presents the results from a study of modeling concrete in the postcracking range using a three dimensional finite element analysis. The analytical work was based on an experimental study of concrete foundations which were loaded through bearing plates. The discrete cracking model was used, resulting in cracking which closely followed that in the tests. Comparisons have been made for different meshes, variable concrete material properties, and variable foundation dimensions. Failure occurred when the concrete foundation broke into segments, with a resulting loss in load-carrying capacity. The approach used is conceptually straightforward, lying between three-dimensional elastic analyses used in the past for concrete foundations and highly rigorous theoretical ones which have been used only for very limited applications.