TY - JOUR
T1 - Cooling rate influences in carbon fibre/PEEK composites. Part III
T2 - Impact damage performance
AU - Gao, Shang Lin
AU - Kim, Jang Kyo
N1 - Funding Information:
The authors wish to thank the Research Grant Council of Hong Kong (CERG HKUST719/95E) and the HKUST Area of Excellence Grant (AoE97/98.EG14) for continuing support of this work, which forms a part of a larger project. Most experiments were conducted with technical supports of Advanced Engineering Materials Facility (AEMF) and Materials Characterisation & Preparation Facilities (MCPF) of HKUST. Part of the paper has been presented in the Eighth European Conference on Composite Materials (ECCM-8), Naples, Italy, in June 1998.
PY - 2001/6/1
Y1 - 2001/6/1
N2 - The effect of cooling rate on impact damage performance of carbon fibre/polyether ether ketone (PEEK) matrix composite is characterised based on the instrumented drop-weight impact test, scanning acoustic microscopy (SAM) damage evaluation and compression-after-impact (CAI) test. Judging from the incipient impact load, incipient impact energy and total damage area, the ability to resist damage initiation upon impact was higher in the order of fast-cooled carbon/PEEK, slow-cooled carbon/PEEK and carbon/epoxy laminates. Furthermore, the threshold impact energy was higher and the CAI strength reduction rate was lower for the fast-cooled specimen than the slow-cooled counterpart, strongly indicating higher impact damage tolerance of the former system. The present study demonstrates that the impact damage performance and other important properties of carbon/PEEK composites can be optimised, if not maximised, by proper control of processing conditions, especially the cooling rate.
AB - The effect of cooling rate on impact damage performance of carbon fibre/polyether ether ketone (PEEK) matrix composite is characterised based on the instrumented drop-weight impact test, scanning acoustic microscopy (SAM) damage evaluation and compression-after-impact (CAI) test. Judging from the incipient impact load, incipient impact energy and total damage area, the ability to resist damage initiation upon impact was higher in the order of fast-cooled carbon/PEEK, slow-cooled carbon/PEEK and carbon/epoxy laminates. Furthermore, the threshold impact energy was higher and the CAI strength reduction rate was lower for the fast-cooled specimen than the slow-cooled counterpart, strongly indicating higher impact damage tolerance of the former system. The present study demonstrates that the impact damage performance and other important properties of carbon/PEEK composites can be optimised, if not maximised, by proper control of processing conditions, especially the cooling rate.
KW - A. Carbon fibre
KW - A. Polymer-matrix composites (PMCs)
KW - B. Mechanical properties
KW - Impact damage resistance
UR - https://www.scopus.com/pages/publications/0035372480
U2 - 10.1016/S1359-835X(00)00189-5
DO - 10.1016/S1359-835X(00)00189-5
M3 - Article
AN - SCOPUS:0035372480
SN - 1359-835X
VL - 32
SP - 775
EP - 785
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
IS - 6
ER -