As the recent serious environmental problems such as global warming and desertification, using the returnable and reusable packaging material has been expending in response to change of the situation in packaging branch.
The purpose of this study was to analyze the edgewise compression behavior ...
As the recent serious environmental problems such as global warming and desertification, using the returnable and reusable packaging material has been expending in response to change of the situation in packaging branch.
The purpose of this study was to analyze the edgewise compression behavior of the environmental–friendly corrugated board according to the principal standards and flute shape with FEA(finite element structural analysis). And FEA results were compared with raw experimental results and analyzed the feasibility of simulation of the edgewise compression behavior by FEA.
The results of this study were as follows.
The load-displacement curve of corrugated board according to the standards and flute shape with FEA shows clear distinction between SW and DW. In the case of KS, the peak value of AB/F and A/F respectively were higher than BB/F and B/F. But in the case of FEFCO, the phenomenon of KS was reversed. And in the case of TAPPI, the phenomenon of KS and FEFCO was mixed. In raw experimental results each parts of the gap is not that big and corresponds roughly to FEA results.
When comparing the edgewise compression strength of KS and TAPPI and FEFCO, the edgewise compression strength of FEFCO was measured smaller. In FEA, AB/F, BB/F, B/F, A/F is respectively smaller than approximately 44%, 35%, 14%, 53%. Futhermore in the raw experiments AB/F, BB/F, B/F, A/F is respectively smaller than approximately 27%, 25%, 19%, 33%. Therefore FEA results and the experimental results were similar.
In the MD direction based on the CD direction, the edgewise compression strength according to the standards and flute shape was similar to the CD direction up to 60°. Due to the collapse of edge of specimen, the closer to the MD direction more than 60°, the greater the experimental error was.
In the case of KS and TAPPI, the stress was concentrated and broken in the reduced cross-sectional area of every flute. But in the case of TAPPI, the stress was widely distributed. In the case of FEFCO, the phenomena of the overall stress distribution appeared and collapsed from the weakest part.
In comparison with the results of FEA and experiment, absolute values were different. But tendencies were very similar. If complemented properties and modeling of corrugated board were add, it is determined that the simulation of the edgewise compression behavior by FEA is possible.
As the recent serious environmental problems such as global warming and desertification, using the returnable and reusable packaging material has been expending in response to change of the situation in packaging branch.
The purpose of this study was to analyze the edgewise compression behavior of the environmental–friendly corrugated board according to the principal standards and flute shape with FEA(finite element structural analysis). And FEA results were compared with raw experimental results and analyzed the feasibility of simulation of the edgewise compression behavior by FEA.
The results of this study were as follows.
The load-displacement curve of corrugated board according to the standards and flute shape with FEA shows clear distinction between SW and DW. In the case of KS, the peak value of AB/F and A/F respectively were higher than BB/F and B/F. But in the case of FEFCO, the phenomenon of KS was reversed. And in the case of TAPPI, the phenomenon of KS and FEFCO was mixed. In raw experimental results each parts of the gap is not that big and corresponds roughly to FEA results.
When comparing the edgewise compression strength of KS and TAPPI and FEFCO, the edgewise compression strength of FEFCO was measured smaller. In FEA, AB/F, BB/F, B/F, A/F is respectively smaller than approximately 44%, 35%, 14%, 53%. Futhermore in the raw experiments AB/F, BB/F, B/F, A/F is respectively smaller than approximately 27%, 25%, 19%, 33%. Therefore FEA results and the experimental results were similar.
In the MD direction based on the CD direction, the edgewise compression strength according to the standards and flute shape was similar to the CD direction up to 60°. Due to the collapse of edge of specimen, the closer to the MD direction more than 60°, the greater the experimental error was.
In the case of KS and TAPPI, the stress was concentrated and broken in the reduced cross-sectional area of every flute. But in the case of TAPPI, the stress was widely distributed. In the case of FEFCO, the phenomena of the overall stress distribution appeared and collapsed from the weakest part.
In comparison with the results of FEA and experiment, absolute values were different. But tendencies were very similar. If complemented properties and modeling of corrugated board were add, it is determined that the simulation of the edgewise compression behavior by FEA is possible.
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