Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Scale-based correlations of relative areas with fracture of chocolate
Ist Teil von
Wear, 2009-03, Vol.266 (5), p.609-612
Ort / Verlag
Amsterdam: Elsevier B.V
Erscheinungsjahr
2009
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Scale-based correlation analyses are applied to the fractography of chocolate. The objective is to show how scale-based analyses can find functional correlations between surface properties and surface textures. This work may also provide some insights into the fracture of chocolate, as distinct scales with strong correlations are found. Chocolate was broken by a strain-rate controlled three-point bending apparatus at various temperatures. The fractured surfaces were measured using a scanning laser microscope. Area-scale analyses, a kind of scale-sensitive fractal analysis, were performed on the measured surfaces, producing relative areas as a function of scale. The correlation between relative area and temperature was computed at each scale and charted. The results of the analyses showed excellent correlation, approaching
R
2 of 1, between relative area and temperature of fracture at a scale of about 17,000
μm
2. The
R
2 values decrease at higher and lower scales to less than 0.1.