Title: High Velocity Impact Response of Hybrid Pseudo-Woven Fiber-Reinforced Composite Laminates

Authors: Cyrus Vakili Rad, Julie Roark, Duane Revilock, Ramy Harik, Subramani Sockalingam and Zafer Gurdal

DOI: 10.33599/nasampe/s.20.0304

Abstract: An intermediary architecture of woven laminates and unidirectional laminates, referred to as pseudo-woven laminates, is proposed as an alternative hybridized structure to improve impact properties of composite laminates. Pseudo-woven laminates make use of an automated fiber placement (AFP) manufacturing process to produce a unique laminate architecture. These laminates are heterogeneous with spatially defined features where elasticity tensor is spatially variable unlike traditional composites. The heterogeneity is associated with interply locking and topological variations in the fiber orientations within individual layers resulting in multiple interfaces and an expanded design space. In this study, carbon/epoxy pseudo-woven subassemblies are hybridized with traditional unidirectional layups to enhance impact and damage tolerance. Three different laminate configurations are assessed under high velocity impact according to ASTM D8101. During the experiments digital image correlation (DIC) and high-speed video were employed to evaluate the laminate’s response. Preliminary results on 24 ply laminates indicate pseudo-woven architecture exhibits increased penetration resistance and reduced back face surface damage compared to traditional laminates.

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Conference: SAMPE 2020 | Virtual Series

Publication Date: 2020/06/01

SKU: TP20-0000000304

Pages: 13

Price: FREE