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Assessment of the toughness of fibre-reinforced concrete using the R-curve approach
Date Issued
01-03-2018
Author(s)
Stephen, Stefie J.
Indian Institute of Technology, Madras
Ferreira, Luiz Eduardo Teixeira
Jose, Sujatha
Abstract
The fracture response of brittle materials like concrete can be characterised using modified linear elastic fracture mechanics models, such as the rising resistance curve (R-curve). In this study, the R-curve, determined by utilising the experimental response in the notched beam test with mode I fracture, is proposed as a measure of the toughness of fibre-reinforced concretes (FRCs). The unambiguity of the R-curve obtained is assessed by comparing the predicted flexural response of specimens of different geometries with experimental data. The variation in the R-curves with the dosage of steel and polymer fibres is also discussed.
Volume
43