Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
High strain-rate behavior of fiber-reinforced thermoplastic composites under compressive loadings
Submission Author:
Carolina Ramírez Montes , Nuevo León , Colombia
Co-Authors:
Vitor Luiz Reis, Carlos Vinícios Opelt, Rafael Santiago, Mirabel Rezende, citlalli gaona, Mauricio Donadon, Carolina Ramírez Montes
Presenter: Carolina Ramírez Montes
doi://10.26678/ABCM.COBEM2017.COB17-1122
Abstract
This work presents an experimental study on the mechanical behavior of polyphenylene sulfide (PPS) based composite laminates reinforced with carbon and glass fibers, subjected to high strain rates under compression load. The specimens were tested using a Split Hopkinson Pressure Bar (SHPB) testing apparatus and an electromechanical universal testing machine for dynamic and quasi-static regimen, respectively. High speed imaging system was used to monitor the failure process during the tests and fractography analysis was performed to identify and understand the influence of the strain rate on the damage mechanisms. Results showed that mechanical properties of PPS carbon fiber-reinforced composite (CF/PPS) are not strain rate dependent, but mechanical properties of PPS glass fiber-reinforced composite (GF/PPS) are strain rate dependent. All the specimens tested exhibited a failure caused by the joint effect of out-of-plane shear and delamination.
Keywords
Fiber-reinforced thermoplastic composites, High strain rate, Split Hopkinson Pressure Bar, Fractography
