“Brocade” method for determination of the strain tensor elements of thin biological materials
Artykuł w czasopiśmie
| Status: | |
| Autorzy: | Gładyszewska Bożena, Szczurowska Izabela, Chocyk Dariusz |
| Rok wydania: | 2007 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 1 |
| Wolumen/Tom: | 10 |
| Bazy: | DOAJ | Index Copernicus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| In this paper a video-extensometer method for studying the mechanical properties of wet biological samples is presented. The method is based on the relationships between a unit elongation of linear element on the surface and strain tensor elements. The linear elements are represented by randomly deposited markers. The analysis of the changes of markers positions during uniaxial tension directly allows to determine the strain in thin coat layers. As a test case, the method was applied to analyze the strain of the dwarf bean (Phaseolus coccineus) seed coats. Young’s modulus and Poisson’s ratio were determined for different moisture content. Young’s modulus clearly decreases with increasing moisture content of the sample. |
