TY - JOUR
T1 - Effect of resin-rich bond line thickness and fibre migration on the toughness of unidirectional Carbon/PEEK joints
AU - Sacchetti, Francisco
AU - Grouve, Wouter J B
AU - Warnet, Laurent L.
AU - Villegas, Irene Fernandez
PY - 2018/6/1
Y1 - 2018/6/1
N2 - It is a common practice in fusion bonding of thermoplastic composites to add a matrix layer between the two substrates to be joined. The aim is to ensure proper wetting of the two parts. The effect of this additional matrix layer on the mechanical performance was studied by mode I fracture toughness measurements. The additional matrix was inserted at the interface in the form of films of various thicknesses. Three different manufacturing techniques, namely autoclave consolidation, press consolidation and stamp forming, were used to prepare different sets of specimens with varying resin-rich bond line thickness. The occurrence of fibre migration towards the matrix rich interface was induced by the manufacturing techniques used due to their different processing times. The interlaminar fracture toughness was observed to increase with increasing amount of extra-matrix at the interface, while no effects of the fibre migration on the fracture toughness were observed.
AB - It is a common practice in fusion bonding of thermoplastic composites to add a matrix layer between the two substrates to be joined. The aim is to ensure proper wetting of the two parts. The effect of this additional matrix layer on the mechanical performance was studied by mode I fracture toughness measurements. The additional matrix was inserted at the interface in the form of films of various thicknesses. Three different manufacturing techniques, namely autoclave consolidation, press consolidation and stamp forming, were used to prepare different sets of specimens with varying resin-rich bond line thickness. The occurrence of fibre migration towards the matrix rich interface was induced by the manufacturing techniques used due to their different processing times. The interlaminar fracture toughness was observed to increase with increasing amount of extra-matrix at the interface, while no effects of the fibre migration on the fracture toughness were observed.
KW - Fractography
KW - Fracture mechanics
KW - Fusion bonding
KW - Matrix interleaving
KW - Thermoplastic composites
UR - http://www.scopus.com/inward/record.url?scp=85043401552&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2018.02.035
DO - 10.1016/j.compositesa.2018.02.035
M3 - Article
AN - SCOPUS:85043401552
SN - 1359-835X
VL - 109
SP - 197
EP - 206
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
ER -