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Thermo Polymer Matrix–Based Natural Fiber Composite
Published in Shishir Sinha, G. L. Devnani, Natural Fiber Composites, 2022
Manan Tyagi, G. L. Devnani, Raj Verma
Braided fabrics are manufactured when three or more yarns are interlaced diagonally, making 30 to 80 angles with the product axis. The angle that the yarns make with the product axis is known as the braiding angle. The cross section of braided fabrics can be of constant area or variable, and it is controlled by a braiding machine. The development of braided fabrics is either in open structure or in closed structure. The number of yarn carriers can be changed for the formation of different types of braids.
Damage advancement behavior in braided composite structures for mini aerial vehicles
Published in Mechanics of Advanced Materials and Structures, 2018
Yucheng Zhong, Ravindrababu Suraj, Chen Wang, Elvin Ser Ming Chia, Sunil Chandrakant Joshi, Zhong Chen
Braiding is a type of textile process [1], where certain number of rolls of fiber yarns are fed to a mandrel by a braiding machine to obtain dry fiber braids. The braiding angle of the fiber braids (orientation of fibers) is controlled by the number of fiber rolls, the diameter of the mandrel, etc. Later, these dry fiber braids are impregnated by resins through processes such as vacuum assisted resin transfer molding to make composite parts. This manufacturing technique offers high production rate and is particularly suited for hollow structures such as tubes. It also provides flexibility in terms of design of the properties of composites by altering the braiding angle or architecture of fiber yarns. It allows through-the-thickness strengthening by introducing 3D braided fiber preforms. Advantages of braided textile composites include but not limited to increased transverse moduli and strength [2], improved shear resistance [3], fracture toughness [4] and damage tolerance [5]. Moreover, braided composites are also suited for complex shapes [6].
Modeling and analysis of tension system used in rotating yarn compensation carrier
Published in The Journal of The Textile Institute, 2023
Zhuo Meng, Chengjie Du, Xi Hou, Yize Sun
Rotary three-dimensional braiding machine is widely used in the production of composite structural parts in automobile, aerospace, military and other fields (Jialu, 2002; Sontag et al., 2015). Carriers are one of the most important parts of the braiding machine (Kyosev, 2014). They can transport yarns and keep yarns tension. There are corresponding carriers for different types of braiding machines or yarns. If inappropriate carriers are used, it is easy to cause yarns abrasion, fuzzing and even fracture, especially when the material is glass fiber or carbon fiber, the harm is more significant.