| Title |
Investigation of physically nonlinear behaviour of polystyrene packages and their elements / |
| Another Title |
Polistireninių pakuočių ir jų elementų fiziškai netiesinės elgsenos tyrimas. |
| Authors |
Ragulskis, K ; Kibirkštis, E ; Dabkevičius, A ; Bivainis, V ; Miliūnas, V ; Ragulskis, Liutauras Mykolas |
| Full Text |
|
| Is Part of |
Mechanika.. Kaunas : Technologija. 2010, Nr. 3, p. 21-27.. ISSN 1392-1207. eISSN 2029-6983 |
| Abstract [eng] |
The model for the analysis of compression of a polystyrene package is based on the analysis of an axi-symmetric physically nonlinear elastic structure. Nonlinear elasticity is taken into account using the hyperbolic model and it is considered as an approximation to the plastic behaviour which can be analyzed by the theory of deformational plasticity valid for monotonic loading. The model for the analysis of bending of a strip of polystyrene is presented. The beam model by taking cubic nonlinearity of Duffing type into account is used. It is shown that the bending behaviour is substantially influenced by the physical nonlinearity. Experimental investigations using a specially developed setup have been performed for a number of types of polystyrene packages. The main graphical relationships and results of the experimental investigations are presented. It is determined that the results of experimental investigations in the initial stage of deformations correspond with the numerical ones. The obtained results of investigations are used in the process of design of the elements of packages. |
| Published |
Kaunas : Technologija |
| Type |
Journal article |
| Language |
English |
| Publication date |
2010 |
| CC license |
|
