By Kyosev, Y
Braided materials are made by way of interlacing yarns or strips of material. Braiding produces a variety of constructions for technical cloth purposes from scientific sutures to cables for anchoring ships. Written by means of one of many world's top specialists within the box, the e-book reports the fundamental rules, layout and techniques utilized in braiding. The e-book additionally discusses specialized braiding innovations comparable to spiral braiding and lace know-how. presents a superior beginning within the basics of braiding layout, techniques and equipment Covers the patterning of braided items and the structural and c. Read more...
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Extra info for Braiding technology for textiles
Those studies included two types of Omniweave materials (worth noting that they were called “3D woven ﬁber-reinforced materials”) with carbon and quartz ﬁbers and phenolic matrix. According to Adsit et al. (1972), in those materials “The woven ﬁber construction is described as a network in which reinforcing ﬁbers follow paths parallel to the diagonals of intersecting planes. ” From there, 3D braided composites were treated for a long time as “four-directional composites (4D)” with a tight packing of straight ﬁbers which directions are identiﬁed, according to Tarnopol’skii et al.
Brown (1991) summarized those experimental studies and found that 3D braided composites have the following advantages in comparison with 2D laminates: 20% increase in shear strength, 50% increase in shear stiffness, 40% increase in compressive strength after impact, 50% increase in tensile strength near cutouts, and three to eight times increase in the pull-off strength of rib-to-skin joints. ” Of a particular interest are experimental studies of 3D braided composites reported in Crane and Camponeschi (1986) and Macander et al.
Complex Shaped Braided Structures. US Patent US4719837. the state of the art in some aspects of 3D braiding at that time, particularly in regard of actuating and control. ” The 3D “track-and-column” braider concept described in Brown (1988) is similar to the concept of Florentine (1982) but with two signiﬁcant differences: in Brown’s concept (1) the tracks and columns were placed on the inner surface of a closed cylinder and (2) pneumatic actuators were used instead of magnets and solenoids. The preference of a closed cylindrical braider bedplate versus a circular (polar) one was 18 Advances in Braiding Technology explained in Brown (1988) as follows: “In circular braiding machines, it is difﬁcult and expensive to produce concentric rings of necessarily different diameters which ﬁt properly together.