|
|
|
|
|
| International Agrophysics |
| wydawca: | Instytut Agrofizyki
im. B. Dobrzańskiego
PAN
w Lublinie |
| ISSN: |
0236-8722 |
vol. 14, nr. 1 (2000)
|
|
|
poprzedni artykuł wróć do listy artykułów następny artykuł
|
|
|
Geometry of cereal stalk cross-section
|
|
|
Gowin J.
|
|
|
Department of Physics, University of Agriculture, Akademicka 13, 20-950 Lublin, Poland |
|
|
vol. 14 (2000), nr. 1,
pp. 33-36
|
|
|
streszczenie
Accuracy of determining mechanical properties of the stalk depends, to a large extent, on the accuracy of determining characteristics of the sample cross-sectional geometry. Accurate calculations are very difficult due to geometrically complex shape of this cross-section. Generally, the cross-section is assumed to be shaped like a filled hollow or hollow ellipse and the stalk material to be homogeneous and mechanically isotropic. The paper presents two new, more accurate methods for determining cross-sectional area and the moment of inertia of the stalk cross-section. The first method is an application of a measuring microscope, the second one an application of a PC image analysis programme.
|
|
słowa kluczowe
cereal stalk, mechanical properties, image analysis
|
|
|
|
|
|
|
