Roughness and fractality of fracture surfaces as indicators of mechanical quantities of porous solids

• Authors: Tomáš Ficker , Dalibor Martišek
• Languages of publication: EN

Abstracts

EN

The 3D profile surface parameter H
q and fractal dimension D were tested as indicators of mechanical properties inferred from fracture surfaces of porous solids. High porous hydrated cement pastes were used as prototypes of porous materials. Both the profile parameter H
q and the fractal dimension D showed capability to assess compressive strength from the fracture surfaces of hydrated pastes. From a practical point of view the 3D profile parameter H
q seems to be more convenient as an indicator of mechanical properties, as its values suffer much less from statistical scatter than those of fractal dimensions.

Keywords

EN

roughness analysis; fracture surfaces; cement-based materials; confocal microscopy; fractals

• Journal: Open Physics
• Year: 2011
• Volume: 9
• Issue: 6
• Pages: 1440-1445

Dates

published

1 - 12 - 2011

online

15 - 10 - 2011

Contributors

author

Tomáš Ficker

• Faculty of Civil Engineering, Department of Physics, Brno University of Technology, Veveří 95, 602 00, Brno, Czech Republic,

author

Dalibor Martišek

• Faculty of Mechanical Engineering, Department of Mathematics, Brno University of Technology, Technická 2, 616 62, Brno, Czech Republic

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Identifiers

DOI

10.2478/s11534-011-0061-0