Experimental Analysis of Process Induced Draping Effects in Textile Preforms

摘要

The local mechanical properties of fiber reinforced composites strongly depend on the local fiber orientation which is created during preforming. To date, investigations on fiber orientation effects focus on the analysis of the overall structure and on a qualitative description of local effects because it is still difficult to quantify local draping effects. This paper presents a tooling concept which allows influencing the preforming of the fabric and thus an approach to quantify local draping effects. Based on the optical inspection system Atos, the size of different draping effects are measured and classified for NCF-reinforced CFRP composites.