4 papers
On a certain analogy between hydrodynamic flow in porous media and heat conductance in solids
F. Tzschichholz
We consider a porous medium being saturated with a pore fluid (Biot's theory). The fluid is assumed as incompressible. It is shown that the general integral of the elastic and pres…
Modellization of hydraulic fracturing of porous materials
F. Tzschichholz, M. Wangen
We review microstructural fracture growth models suitable for the study of hydraulic fracture processes in disordered porous materials and present some basic results. It is shown t…
Roughness of Randomly Crumpled Elastic Sheets
F. Tzschichholz, A. Hansen, S. Roux
We study the roughness of randomly crumpled elastic sheets. Based on analytical and numerical calculations, we find that they are self affine with a roughness exponent equal to one…
Modelization of Crack Growth in Brittle, Disordered Materials
Frank Tzschichholz
The thesis consists of four main chapters. In Ch.2 we discuss experimental results concerning the scaling behavior and fractality of fracture surfaces. In Ch.3 continuum and discre…