An Efficient Modelling Approach for Prediction of Porosity Severity in Composite Structures
Braided quasi-isotropic (0°, +/-60°) fabric has enabled easy lay-up and provided superior performance for a variety of composite applications, but to date the test data characterizing the benefits of quasi-isotropic fabric has been application specific. Quasi-isotropic laminates composed of prepregged woven fabric were compared to laminates composed of prepregged quasi-isotropic braided fabric. Both fabrics were produced with the same fiber type and were prepregged with the same resin. The coupon test matrix included: tension and compression in multiple directions; in-plane shear; CAI; open-hole tension and open-hole compression. Panel testing included impact testing using a soft gelatin projectile. The panel testing performed bracketed the containment threshold. Analysis of the two material systems studied and the impact testing performed will be examined, for the first time, in this presentation.
Conference: SAMPE Seattle 2017