Fracture surfaces of porous materialsT. Ficker1, A. Len2, R. Chmelík3, L. Lovicar3, D. Martisek4 and P. Nemec1
1 Department of Physics, Faculty of Civil Engineering, Technical University Zizkova 17, 602 00 Brno, Czech Republic
2 Budapest Neutron Centre - Konkoly Thege 29-33, H-1525, Hungary
3 Institute of Physical Engineeering, Faculty of Mechanical Engineering, Technical University Technická 2, 616 69 Brno, Czech Republic
4 Institute of Mathematics, Faculty of Mechanical Engineering, Technical University Technická 2, 616 69 Brno, Czech Republic
received 14 May 2007; accepted in final form 16 August 2007; published October 2007
published online 10 September 2007
The fracture surface of composite porous material has been investigated as a multicomponent surface onto which the volume components are projected with different dimensions. It has been shown that these fracture surfaces bear information on the value of compressive strength and may be characterized by a general dimension at least for a particular class of materials.
62.20.Mk - Fatigue, brittleness, fracture, and cracks.
05.40.-a - Fluctuation phenomena, random processes, noise, and Brownian motion.
81.40.Np - Fatigue, corrosion fatigue, embrittlement, cracking, fracture, and failure.
© Europhysics Letters Association 2007