- Tytuł:
- Modeling of the axial crumpling of conical shells
- Autorzy:
-
Kiter, Riyah N.
Abbood, Mazin Y.
Hassoon, Omar H. - Powiązania:
- https://bibliotekanauki.pl/articles/27309862.pdf
- Data publikacji:
- 2022
- Wydawca:
- Polska Akademia Nauk. Czasopisma i Monografie PAN
- Tematy:
-
axial crushing
concertina
eccentricity
ABAQUS
inward folding
kruszenie osiowe
harmonijka
ekscentryczność
składane do wewnątrz - Opis:
- The axial crumpling of frusta in the axisymmetric "concertina" mode is examined. A new theoretical model is developed in which the inward folding in both cylinders and frusta is addressed. The results were compared with previous relevant models as well as experimental findings. The flexibility of the model was substantiated by its capability of describing and estimating the inward folding in frusta in general as well as in cylinders as a special case. A declining trend of the eccentricity dependence with the D/t ratio was found in contrast with a previous theory which suggests total independency. ABAQUS 14-2 finite element software was employed to simulate the thin tube as a 3-D thin shell part. Numerical simulations of the process were found to, firstly, underestimate the theoretical values of inward folding in general, secondly anticipate more underestimations as the tubes become thinner and/or have larger apex angle, and finally anticipate as low as 300 apical angle frusta to revert its mode of deformation to global inversion.
- Źródło:
-
Archive of Mechanical Engineering; 2022, LXIX, 4; 615--628
0004-0738 - Pojawia się w:
- Archive of Mechanical Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł