WIT Press


Multifractality Of Fracture Patterns Under Tensile And Compressive Stresses In Cement-based Materials

Price

Free (open access)

Paper DOI

10.2495/LD960021

Volume

13

Pages

16

Published

1996

Size

1,748 kb

Author(s)

A. Carpinteri, B.Chiaia & K.M. Nemati

Abstract

The scaling properties of the fracture surfaces generated by uniaxial tensile tests and of the crack networks induced by compressive loadings are investigated. In the case of the tensile tests, a laser profilometer was adopted to scan the fracture surfaces. In the case of the compression tests, after injection of a fusible alloy inside the specimen, scanning electron microscope was used to detect the stress- induced crack patterns. The highly localized energy dissipation in tensile fracture is shown to occur over a fractal domain with dimension larger than 2.0. Also, the microcracks network induced by compression loadings possesses fractal dimension much larger than 2.0 in the bulk. Fractality permits

Keywords