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Appl. Sci. 2018, 8(1), 41; doi:10.3390/app8010041

Research on the Transportation of Low-Strength Composites Sheets

1,2
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1,2
,
1,2
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1,2
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1,2,*
1
Department of Mechanical Engineering, Tsinghua University, 30 Shuangqing Rd., Beijing 100084, China
2
Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Received: 26 November 2017 / Revised: 21 December 2017 / Accepted: 22 December 2017 / Published: 31 December 2017
(This article belongs to the Section Mechanical Engineering)
View Full-Text   |   Download PDF [8380 KB, uploaded 31 December 2017]   |  

Abstract

The novel non-combustible sandwich panel is extremely fragile in manufacturing and cannot be tensioned between rolls. Previous studies on the roll-to-roll system, which mainly focused on the high-tension situations and little described the low-strength materials, are insufficient. To explore the transportation of low-strength materials, we study the tension distribution of continuous moving flexible one-dimensional materials on a steady-state track. First, we propose a numerical method to calculate the steady-state track of low-strength sheet between rolls considering the gravity, as well as size and position of rolls. Then we obtain the optimum sag at different size and position of rolls. We find out that there is a lower limit of the sheet’s strength-density ratio (the Minimum Specific Strength) for a specific set of size and position of rolls. Finally, we establish a method to calculate the lower limit approximately for engineering use. Our method can be generalized in manufacturing other low-strength flexible thin-sheet materials as well. View Full-Text
Keywords: axially moving materials; rolls; catenary; tension; mathematical modeling axially moving materials; rolls; catenary; tension; mathematical modeling
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Ji, R.; Chang, B.; Wang, L.; Wang, W.; Du, D. Research on the Transportation of Low-Strength Composites Sheets. Appl. Sci. 2018, 8, 41.

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