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Finite Element Analysis and Experiment Research of Corrugated Boxes

Author: DaiXiaoLi
Tutor: ZhouTingMei
School: Wuhan University of Technology
Course: Mechanical Design and Theory
Keywords: Corrugated boxes Indentation Edge Crush Compressive strength Nonlinear Analysis
CLC: TB484.1
Type: Master's thesis
Year: 2010
Downloads: 143
Quote: 0
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Abstract


Corrugated boxes in a shipping package, because of its light weight, high strength, easy processing, easy to fold, easy recovery and recycling, excellent printability, low cost, and will gradually replace the wooden box and plastic box. More corrugated boxes used in the country for more than five, the excessive waste of timber resources, environmental destruction, to reduce the use of raw materials is imperative for the development of resource-saving and improve the strength of the corrugated box. Therefore proceed from the Factors influencing the strength of corrugated boxes, from the in-depth study of a certain influence factors, see the specific impact of the factors on the strength of corrugated boxes, which provide some theoretical basis to improve the design and production process of the corrugated box. There are many factors affecting the strength of the corrugated box First, the basic factors that determine the main factors of the compressive strength of corrugated boxes, is unavoidable factors; variables can not be avoided in the design or manufacture of corrugated boxes factors, such as the proportion of the size of the box, the print area and print design, open area, and the opening position, carton manufacturing technology problems. Creasing and folding corrugated box corrugated box forming process of the most important processes in creasing folding the large displacement and large deformation process, the width of indentation, indentation depth, the indentation force on the strength of the carton great impact. In response to this phenomenon, in considering the corrugated box material nonlinearity and geometric nonlinear case, select the type B single corrugated boxes and BC double corrugated box as an object of study. ANSYS finite element analysis software compression experiment simulation analysis, the carton segment and the entire carton crushing force and displacement crushing compressive deformation results, the distribution of the displacement field and stress distribution of corrugated box segment and the entire carton situation. Obtained the upper section of the corrugated box compressive strength is the highest, followed by the middle of the corrugated box, the entire carton compressive strength is the lowest. Test type B single corrugated board and BC-double corrugated board indentation ECT ECT trials, such as the different direction indentation the horizontal indentation, longitudinal creasing and folding indentation; indentation depth unchanged, the indentation width of ECT test. Come to be horizontal indentation corrugated board edge crush strength of than by longitudinal indentation corrugated board edge crush strength; greater the width of the corrugated board indentation suffered lower compressive strength of corrugated boxes this conclusion. The results showed that the strength of the corrugated box basically depends on the horizontal folds BCT test sub-type B single corrugated boxes and BC double corrugated boxes. This process provides a theoretical basis, and laid the foundation for further research to improve the folding of corrugated cardboard indentation.

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CLC: > Industrial Technology > General industrial technology > Industrial common technology and equipment > Packaging Engineering > Packaging materials > Paper, cardboard
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