ABSTRACT

This chapter gives an overview of the main characteristics of circular braid manufacturing processes with special attention to the interaction between process parameters and structural as well as mechanical properties of braided preforms. Circular two-dimensional (2D) and three-dimensional (3D) interlock processes are considered. Analytical modeling approach to understand the inuence of process parameters, corresponding to a transient or a steady-state production phase, on the nal structure of braids is presented too. The analysis of the properties of braids is approached using non-destructive tests, such as x-ray tomography, while the mechanical properties are estimated on braided composite tubes using classical testing and extensometry methods. The variation of the mechanical properties as a function of the braiding angle is discussed.