Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modeling of the Fracture Process in Prenotched Concrete Beams to Examine Size Effects
Abstract Concrete is a strain-softening material with a relatively low tensile strength. For laboratory specimens the resulting fracture process zone is large relative to the size of the K-dominated region calculated using linear elastic fracture mechanics. This violates a fundamental assumption of linear elastic fracture mechanics. In this paper, we analyze three-point beam specimens using a direct model of the process zone, and compare the results to experimental data. The results show the necessity of using such a model for laboratory specimens. Some difficulties with interpreting the experimental data are also noted. This is a report of work in progress.
Modeling of the Fracture Process in Prenotched Concrete Beams to Examine Size Effects
Abstract Concrete is a strain-softening material with a relatively low tensile strength. For laboratory specimens the resulting fracture process zone is large relative to the size of the K-dominated region calculated using linear elastic fracture mechanics. This violates a fundamental assumption of linear elastic fracture mechanics. In this paper, we analyze three-point beam specimens using a direct model of the process zone, and compare the results to experimental data. The results show the necessity of using such a model for laboratory specimens. Some difficulties with interpreting the experimental data are also noted. This is a report of work in progress.
Modeling of the Fracture Process in Prenotched Concrete Beams to Examine Size Effects
Refai, T. M. E. (Autor:in) / Swenson, D. V. (Autor:in)
Fracture of Concrete and Rock ; 303-310
01.01.1989
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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