OF FOLDABLE PLASTIC PACKAGING BUCKLING FAILURE

Taško Maneski, Biserka Nestorović
University of Belgrade – Faculty of Mechanical Engineering, Faculty of Forestry

 

ABSTRACT
This paper describes the numerical and experimental methodology for analysis of plastic packaging buckling characteristics that are representative of its strength in the real life. The experiments were executed with ”GOM” equipment and “ARAMIS”software application for modern optical 3D measurement of deformations. Numerical analysis was conducted by the application of finite elements using “KOMIPS” software. The fundamental question to be answered is related to the mechanism of failure of foldable packaging – does the buckling precede plasticity or vice versa? This article will show how experimental results can be predicted by means of finite element analysis; this is found a very strong learning tool that would enable designers to improve the structural strength of the new products in future. Experimental and numerical analysis results to date have shown high degree of correlation.
This paper describes the access that allows real structure behavior diagnostic, reliable prospect for structure in exploitation reacting, elements receiving for different decision making (operating regime, rehabilitation, reconstructions, revitalizations, optimization, confirmation to variable solution selection and so on), poor performance sample defining or structure loosening, structure life time estimation and similar. The described developed diagnosis access is shown in solved examples.

KEY WORDS
finite element method, 3D optical measurement of deformations, validation, buckling

 

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SAJ Vol. 3, 2011, No. 2