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Composite Sectional Beams (I-Beam) Made of Knitting Preform

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Composite Sectional Beams (I-Beam) Made of Knitting Preform


Woven fabric used in composite I-beams need to be cut into patterns first to reach the final I-beam shape. However, a one piece complex three dimensional shapes cannot be manufacturing using woven preform due to the limitation of the weaving machines. Usually, Complex shapes need several process including cutting and sewing. In this paper, knitting machine is used to fabricate a one piece section beams such as I-beam, T-beam, and array T beam, whereas no further cut and sewing process are needed. Different knitting structures were used to develop the final sectional beams. Fabricated I-beam preforms are treated with polyester resin and mechanical properties were tested. Controlling raw materials and knitting structures define the final properties and the usage of the final products. Natural materials were used to fabricate the I-beam to replace the traditional lumber sectional beams. Several composite products can be fabricated using this technique such as scaffold façades, traffic signs and light poles. Knitted preform may reinforced with glass fiber and carbon fiber to enhance the final mechanical properties.


Author: Tamer Hamouda


Conference: SAMPE Seattle 2017


SKU/Code: SE17--0668

Pages: 10


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