A tribute to "Analysis of Crack Formation and Crack Growth in Concrete by Means of Fracture Mechanics and Finite Elements"

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Title: A tribute to "Analysis of Crack Formation and Crack Growth in Concrete by Means of Fracture Mechanics and Finite Elements"

Author(s): A. Hillerborg, M. Modeer, and P.E. Petersson

Publication: Special Publication

Volume: 249

Issue:

Appears on pages(s): 225-238

Keywords:

Date: 3/1/2008

Abstract:

Due to copyright issues, this paper is only available by purchasing the SP-249.

A method is presented in which fracture mechanics is introduced into finite element analysis by means of a model where stresses are assumed to act across a crack as long as it is narrowly opened. This assumption may be regarded as a way of expressing the energy absorption Gc in the energy balance approach, but it is also in agreement with results of tension tests. As a demonstration the method has been applied to the bending of an unreinforced beam, which has led to an explanation of the difference between bending strength and tensile strength, and of the variation in bending strength with beam depth.