Dynamic response of Advanced Placed Ply composites

This work investigates the high strain rate behavior of AP-PLY composites. The large representative volume elements and brittle nature of this material necessitated the use of a bespoke split-Hopkinson bar apparatus. AP-PLY and baseline laminates were subjected to tensile loading at strain rates of 30 1/s. Results were compared with quasi-static data to evaluate whether the laminate architecture introduced any strain rate dependency. In addition, the dynamic experiments were simulated using a multiscale modeling framework, providing further insights into the micromechanisms governing material behavior. The moduli of the AP-PLY composites were found to be strain rate independent, however, strengths were found to be marginally higher than those of their baseline counterparts. Different deformation micromechanisms were observed at high and low strain rates, resulting in an improvement of the damage tolerance when subjected to dynamic loads.

KOK Rutger;  PERONI Marco;  MARTINEZ HERGUETA Francisca;  PELLEGRINO Antonio; 

2024-04-17

ELSEVIER SCI LTD

JRC129576

1359-8368 (online),   

https://www.sciencedirect.com/science/article/pii/S135983682200720X,    https://publications.jrc.ec.europa.eu/repository/handle/JRC129576,   

10.1016/j.compositesb.2022.110347 (online),