4th International Conference on Competitive Materials and Technology Processes | |
Engineering estimation of time-dependent deformation characteristics as bending moment relaxation and released unfolding motion of creased paperboard | |
Nagasawa, Sh^1 | |
Department of Mechanical Engineering, Nagaoka University of Technology, Nagaoka | |
940-2188, Japan^1 | |
关键词: Converting industries; Dynamic deformation; Engineering estimations; Experimental approaches; Fundamental mechanisms; Response behaviour; Time-dependent deformation; Time-dependent stress relaxation; | |
Others : https://iopscience.iop.org/article/10.1088/1757-899X/175/1/012003/pdf DOI : 10.1088/1757-899X/175/1/012003 |
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来源: IOP | |
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【 摘 要 】
Paperboards are recognized to be important raw materials for packaging industry due to their advantages such as high strength-to-weight ratio, recyclability. Regarding the development of advanced packaging materials and the requirement of smart formed products, a study of sheet's response behaviour is necessary for expanding the advanced converting industry. After introducing a couple of past research works concerned crease technologies, a fundamental mechanisms of crease deformation is reviewed using the scoring depth and the folding angle of a paperboard. Since one of important forming characteristics is a time-dependent stress relaxation or time-delayed strain during a fold/unfold process, the author's experimental approaches for estimating a short term (less than 10 seconds) dynamic deformation behaviour of creased paperboard are discussed.
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