Flexural Properties of Multi-Tow Structures Constructed from Glass/Polypropylene Tape under Various Manufacturing Conditions 


Vol. 23,  No. 7, pp. 1965-1974, Jul.  2022
10.1007/s12221-022-4878-5


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  Abstract

In this study, a multi-tow structure that can provide load-bearing functionality was fabricated through a proposed consolidation process proposed using polypropylene-impregnated continuous-glass-fiber composite tape (glass/PP tape). The flexural properties of the multi-tow structure were analyzed to evaluate the influence of the processing temperature, processing speed, number of glass/PP tapes, and glass fiber content of the glass/PP tapes. The proposed process for constructing the multi-tow structure can generate straight, curved, and looped three-dimensional structures by using a multijoint robot and instantaneous consolidation of glass/PP tapes. As the number of glass/PP tapes increased, the resin-rich area increased and the void volume fraction in the multi-tow structure increased from 2 to 5 vol%, while the flexural strength decreased. However, when the number of glass/PP tapes and processing temperature were adjusted appropriately, the flexural strength of the multi-tow structure that can be constructed at speeds 30 times faster than those of conventional pultrusion process was relatively superior. The results of a finite element analysis, confirmed that the inclusion of the proposed multitow structure in a bumper beam was effective in reducing deformation and absorbing the impact energy due to external loads.

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  Cite this article

[IEEE Style]

J. Lee, W. Kim, C. Kim, "Flexural Properties of Multi-Tow Structures Constructed from Glass/Polypropylene Tape under Various Manufacturing Conditions," Fibers and Polymers, vol. 23, no. 7, pp. 1965-1974, 2022. DOI: 10.1007/s12221-022-4878-5.

[ACM Style]

Jong-Wook Lee, Won-Seok Kim, and Chun-Gon Kim. 2022. Flexural Properties of Multi-Tow Structures Constructed from Glass/Polypropylene Tape under Various Manufacturing Conditions. Fibers and Polymers, 23, 7, (2022), 1965-1974. DOI: 10.1007/s12221-022-4878-5.

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