Application of Nonlinear and Eigenvalue Buckling Analysis in Packaging TestReport as inadecuate




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Both physical and mathematical models of eigenvalue and nonlinear buckling analysis were established based on the mechanics of materials. The buckling strength expressions of nonlinear analysis for simple structure were also derived. Thus a new method combined with nonlinear and eigenvalue buckling analysis was developed after analyzing the advantages and disadvantages of the two buckling analysis methods. Lastly finite element analysis software ANSYS was adopted to simulate the buckling strength of honeycomb paperboard with the former two measures. The results show that: 1 compared with experiments, nonlinear method is superior to eigenvalue one, but the preloaded load in nonlinear analysis is difficult to determine and therefore the combinations of the two make a better result in efficiency and accuracy. 2 ANSYS is an effective tool to carry out nonlinear and eigenvalue buckling analysis for packaging related parts as well as their combination, and the antecedently obtained buckling analysis results can offer valuable references for packaging design, testing and prediction of mechanical properties of packaging related parts.

KEYWORDS

nonlinear buckling analysis; eigenvalue buckling analysis; packaging test; finite element

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Author: Yue-jun Liu, Tai-jun Jiang, Guang-sheng Zeng, Cheng Xu

Source: http://www.scirp.org/



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