FraMCoS 3 1998 Gifu, Japan

Damage Analysis of Notched Concrete Beams Loaded in Four-Point Shear

In recent years, various numerical models have been proposed to analyse the damage evolution in concrete structures. The present contribution focuses on a gradient-enhanced damage formulation which is applied to single- edge-notched (SEN) and double-edge-notched (DEN) concrete beams load- ed…

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Year 1998
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Abstract

In recent years, various numerical models have been proposed to analyse the damage evolution in concrete structures. The present contribution focuses on a gradient-enhanced damage formulation which is applied to single- edge-notched (SEN) and double-edge-notched (DEN) concrete beams load- ed in four-point-shear. Experimentally observed curved crack paths, dam- age zones and splitting cracks are investigated through the use of freely rotating, fixed or constrained loading supports. The influence of the ratio of the compressive strength versus the tensile strength is scrutinized and its relation with the failure mechanism is investigated. A good agreement has been found between available experimental results and numerical simula- tions.