Introduction of the developable surface concept in fibrous composite materials. (June 2022)

• Record Type: Journal Article
• Authors: Chanda, Avishek; Bhattacharyya, Debes
• Is Part Of: Composites. Volume 157(2022)
• Publication Date: 2022-06
• Subjects: Natural composites -- Polymer-matrix composites -- Developable surface -- Thermomechanical forming; de Developable surface -- re Ruled surface -- SB Spring-back -- c Directrix curve -- g Generator -- K Gaussian curvature -- H Height of the arc -- W Width of the plate -- Cn (n=1, 2, 3) Special curve -- Q Normal surface of the special curve -- PP Polypropylene -- MC Moisture content -- Tf Forming temperature; Composite materials -- Periodicals; Manufacturing processes -- Periodicals; Composite materials; Manufacturing processes; Periodicals; 620.11805
• DOI: 10.1016/j.compositesa.2022.106910
• Languages: English
• ISSNs: 1359-835X

Abstract

Abstract: Composite sheet forming, especially thermo-forming, has been well researched over the last few decades. However, the concept of developable surfaces has not been implemented for the fibrous composites. These surfaces form critical and lucrative aspects in geometric designs, surface analyses and structural applications, with their roots being strongly established in origami and various shape designs around the world. The current work aims to analytically derive and determine developable (de ) curvatures on a flat sheet, based on established theories on lines of curvature. The theoretically derived de curves are then validated by metallic sheet forming before implementing them for the first time on both multi-layered wood veneers and short flax-fibre reinforced polypropylene composites. The work is a novel application of the established developable surface generation in the case of composite sheet forming, the success of which can expand its usage in various consumer goods and structural components.