Degradation Analysis of Notched Foam Concrete Beam

Abstract:

Nowadays, lightweight foamed concrete (LFC) is increasingly being used for structural purposes. Physical and mechanical properties of LFC are unlike the properties of traditional concrete thus constitutive models for concrete may not be used directly to describe its the fracture behavior. The paper presents an attempt to adapt the elastoplastic model with degradation known as Barcelona model for this purpose. The constitutive model is traditionally used for non-linear analyses of concrete and masonry structures. However, when it is used to describe behavior of non-traditional material such as foamed concrete, its parameters must be calibrated. Moreover, the results from Barcelona model are compared with XFEM method of modeling discontinuities in materials. The results of numerical simulations of three-point bending foamed beam with an initial notch are presented.

• Periodical: Applied Mechanics and Materials (Volume 797)
• Pages: 96-100
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.797.96
• Online since: November 2015
• Authors: Marta Kadela*, Andrzej Cińcio, Marcin Kozlowski
• Keywords: Barcelona Model, Elastoplastic Model with Degradation, FEM, Foamed Concrete, Fracture Energy, LFC, Notched Beam, Three-Point Bending, XFEM

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