Available online at www.sciencedirect.com ScienceDirect Materials Today: Proceedings 18 (2019) 2753–2759 www.materialstoday.com/proceedings 2214-7853 © 2019 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the 9th International Conference of Materials Processing and Characterization, ICMPC-2019 ICMPC-2019 Formability Behaviour of 3D Woven Solid Structures with Varying Stuffer Binder Ratio Vikas Khatkar a , Sakthi Vijayalakshmi AG a , Manjunath R N a , B K Behera a a Department of Textile Technology, Indian Institute of Technology Delhi- New Delhi (INDIA)-110016 Abstract In this study formability of three different Multilayer E-Glass 3D orthogonal woven preforms with varying stuffer (warp yarns) and binder (through thickness yarn) ratio is experimentaly investigated. 3D orthogonal woven reinforcements were developed using a in house fabricated mutibeam rigidrappier weaving machine. Formability behaviour of all structures were analysed using a fabricated formability fixure, with hemispherical pluger. Stuffer and binder yarn percenatge by mass were varied keeping same fiber volume fraction in all three structure, It is obsrved that binder percetage, Number of crossover point in a unit cell, singnificantly influence formability behaviour of the strucures. © 2019 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the 9th International Conference of Materials Processing and Characterization, ICMPC-2019 Keywords: 3D Orthogonal fabric, Formability behaviour, Stuffer binder raito Introduction Now-a-days, the industries like automobiles, aerospace etc., need thicker and more complex composite parts for load bearing applications [1]. The current development in advanced composite manufacturing system involves the production of complex-shaped composite panels. In such case, the market requirements are focused not only on mechanical performance of composites but also on process ability, near-net shaping and overall cost [2-3]. Multilayered reinforcement is largely used as the traditional method. Recently, three-dimensional (3D) fabrics are developed to replace the multilayered reinforcements in certain applications to increase the performance in thickness direction of part, e.g. orthogonal structure. Unlike very thick laminates from multiple 2D woven fabric reinforcements, 3D woven composites can be easily machined into components. [1][4]. the complexity of the part and its quality depend strongly on the formability of the preform that reinforces composite [5]. Formability is the ability of a planar preform to be directly deformed to fit a 3D surface without wrinkles and fiber distortions [6]. The experiments conducted to characterize the forming behavior of textile preforms include the main deformation modes associated with the forming process [7]. * Corresponding author. Tel.: E-mail address: vikas.khatkar1989@gmail.com