TY - JOUR
T1 - Effect of surface roughness on friction in fibre-bundle pull-out tests
AU - Brandstetter, Johann
AU - Kromp, Karl
AU - Peterlik, Herwig
AU - Weiss, Roland
N1 - DOI: 10.1016/j.compscitech.2004.11.004
Coden: CSTCE
Affiliations: Institut für Materialphysik, Universität Wien, Boltzmanngasse 5, A-1090 Vienna, Austria; Schunk Kohlenstofftechnik GmbH, Rodheimer Strasse 59, D-35452 Heuchelheim, Germany
Adressen: Brandstetter, J.; Institut für Materialphysik; Universita?t Wien; Boltzmanngasse 5 A-1090 Vienna, Austria; email: [email protected]
Import aus Scopus: 2-s2.0-13744262241
22.10.2007: Datenanforderung 1922 (Import Sachbearbeiter)
17.12.2007: Datenanforderung 2031 (Import Sachbearbeiter)
19.02.2008: Datenanforderung 2127 (Import Sachbearbeiter)
PY - 2005
Y1 - 2005
N2 - The fracture behaviour of ceramic-matrix composites is highly influenced by frictional conditions in the interface. In the present paper the influence of interfacial roughness and geometric misfit on the clamping stress is investigated by a specific fibre bundle pull-out test: this test is performed by the superposition of an external load perpendicular to the plies of a 2D endless fibre reinforced C/C composite. The superposition is achieved by means of a specially designed load frame, which acts as a load cell. With this principle of measurement the evolution of external and internal stresses during pull-out is obsessed and the Coulomb friction coefficient ? is calculated. A distinct decrease of the Coulomb friction coefficient in the course of the pull-out test was observed. This indicates a change in the surface roughness due to interfacial wear. The friction coefficient is furthermore dependent on the pull-out velocity: its increase leads to an increase of the friction coefficient. Π2004 Elsevier Ltd. All rights reserved.
AB - The fracture behaviour of ceramic-matrix composites is highly influenced by frictional conditions in the interface. In the present paper the influence of interfacial roughness and geometric misfit on the clamping stress is investigated by a specific fibre bundle pull-out test: this test is performed by the superposition of an external load perpendicular to the plies of a 2D endless fibre reinforced C/C composite. The superposition is achieved by means of a specially designed load frame, which acts as a load cell. With this principle of measurement the evolution of external and internal stresses during pull-out is obsessed and the Coulomb friction coefficient ? is calculated. A distinct decrease of the Coulomb friction coefficient in the course of the pull-out test was observed. This indicates a change in the surface roughness due to interfacial wear. The friction coefficient is furthermore dependent on the pull-out velocity: its increase leads to an increase of the friction coefficient. Π2004 Elsevier Ltd. All rights reserved.
U2 - 10.1016/j.compscitech.2004.11.004
DO - 10.1016/j.compscitech.2004.11.004
M3 - Article
SN - 0266-3538
VL - 65
SP - 981
EP - 988
JO - Composites Science and Technology
JF - Composites Science and Technology
IS - 6
ER -