Dynamic tensile CFRP AP-PLY data

Published: 23 September 2022| Version 1 | DOI: 10.17632/6p62jgsmnm.1
Rutger Kok


Dynamic tensile test data from experiments conducted on carbon fiber epoxy AP-PLY composites. A paper with a complete description of the data collection process is under review. This description will be updated with a link to the paper in due time. RESEARCH AIMS Quasi-isotropic [0, 45, 90, -45]4S and cross-ply [0, 90]12S laminates with conventional or AP-PLY configurations were tested to failure under dynamic tensile loading using a split-Hopkinson bar, to investigate the effect of the AP-PLY architecture on the in-plane mechanical properties of the laminates (specifically longitudinal modulus and strength). TESTING PROCEDURE Laminates were manufactured using SHD Composites VTC401 unidirectional prepregs (VTC401-UD300-T700-24K-36%RW-600P SHD1579-600P). Laminates were laid up by hand, and subsequently cured in a hot press at 110 degrees centigrade at a pressure of 4 bar. Dogbone shaped specimens were extracted using CNC milling. Four holes were drilled into the ends of each specimen to allow them to be clamped in the split-Hopkinson bar grips. Aluminium end tabs were adhered to the specimens using epoxy adhesives (Araldite 2021 and Permabond ET5428). Specimens dimensions are illustrated in the "specimen_dimensions.pdf" included with the data. Testing was conducted at the European Commission's Joint Research Center, specifically, the European Lab for Structural Analysis HopLab (https://joint-research-centre.ec.europa.eu/laboratories-and-facilities/european-laboratory-structural-assessment-large-hopkinson-bar-facility-elsa-hoplab_en). Specimens were loaded to failure at strain rates of ~30s-1 using an extremely large split Hopkinson bar. Strains were recorded using 2D digital image correlation, forces were obtained from transducers in the SHB. DATA FORMAT Data is provided in .csv format. "QI" is used to indicate a quasi-isotropic laminate with 0, 45, 90, and -45 degree fiber orientations. "XP" denotes cross-ply laminates containing only 0 and 90 degree plies. Filenames containing "_AP_PLY" refer to specimens with an AP-PLY quasi-woven internal architecture. Filenames containing "_BASE" refer to baseline, non AP-PLY specimens. Column headings are: index (-), Time (s), Strain (-), Stress (MPa)



The University of Edinburgh


Engineering, Composite Material, Carbon Fiber