[article]
| Titre : |
An energy approach to the characterisation of the fracture resistance of leather |
| Type de document : |
texte imprimé |
| Auteurs : |
Cheng-Kung Liu, Auteur ; Michael D. Mcclintick, Auteur |
| Année de publication : |
1997 |
| Article en page(s) : |
p. 103-118 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The fracture resistance of chrome-tanned bovine hides was quantitatively characterized by measuring the total energy required to break the leather. This physical quantity named fracture energy is observed to more truthfully represent the fracture resistance of leather than the tensile strength or breaking elongation. Three major independent variables, moisture content, strain rate, and sampling angle were arranged according to Box Hunter's experimental design matrix, thereby deriving a second order polynomial equation. The statistical model so obtained concisely expressed the relationship between the variables and corresponding fracture resistance. The results showed that water acting as a plasticizer enhances the fracture resistance of leather. However, fracture energy started to decrease once the moisture content increased to around 90%. Contrary to its effect on tensile strength, the sampling angle has shown little effect on the fracture energy of leather. The effect of strain rates on fracture energy is not straightforward. The fracture energy at first decreases then increases with increasing strain rates. The ratio of tensile strength of Young's modulus was used to represent the toughness of leather. This parameter is dimensionless, independent of the geometric shape of the leather samples. A correlation was observed between this parameter and fracture energy. |
| En ligne : |
https://drive.google.com/file/d/145d8ZUpXvdWiouUdTVcxsf2uiTzkSgjM/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7674 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCII, N° 5 (05/1997) . - p. 103-118
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An energy approach to the characterisation of the fracture resistance of leather in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCII, N° 5 (05/1997)
