TY - JOUR
T1 - High-cycle fatigue characteristics of quasi-isotropic CFRP laminates
AU - Hosoi, Atsushi
AU - Arao, Yoshihiko
AU - Karasawa, Hirokazu
AU - Kawada, Hiroyuki
PY - 2007/3/1
Y1 - 2007/3/1
N2 - High-cycle fatigue characteristics of quasi-isotropic carbon fiber reinforced plastic (CFRP) laminates [-45/0/45/90]s up to 108 cycles were investigated. To assess the fatigue behavior in the high-cycle region, fatigue tests were conducted at a frequency of 100 Hz, since it is difficult to investigate the fatigue characteristics in high-cycle at 5 Hz. Then, the damage behavior of the specimen was observed with a microscope, soft X-ray photography and a 3D ultrasonic inspection system. In this study, to evaluate quantitative characteristics of both transverse crack propagation and delamination growth in the high-cycle region, the energy release rate associated with damage growth in the width direction was calculated. Transverse crack propagation and delamination growth in the width direction were evaluated based on a modified Paris law approach. The results revealed that transverse crack propagation delayed under the test conditions of less than σ
AB - High-cycle fatigue characteristics of quasi-isotropic carbon fiber reinforced plastic (CFRP) laminates [-45/0/45/90]s up to 108 cycles were investigated. To assess the fatigue behavior in the high-cycle region, fatigue tests were conducted at a frequency of 100 Hz, since it is difficult to investigate the fatigue characteristics in high-cycle at 5 Hz. Then, the damage behavior of the specimen was observed with a microscope, soft X-ray photography and a 3D ultrasonic inspection system. In this study, to evaluate quantitative characteristics of both transverse crack propagation and delamination growth in the high-cycle region, the energy release rate associated with damage growth in the width direction was calculated. Transverse crack propagation and delamination growth in the width direction were evaluated based on a modified Paris law approach. The results revealed that transverse crack propagation delayed under the test conditions of less than σ
KW - Delamination
KW - Energy release rate
KW - High-cycle fatigue
KW - Polymer-matrix composites
KW - Transverse cracking
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U2 - 10.1163/156855107780918964
DO - 10.1163/156855107780918964
M3 - Article
AN - SCOPUS:34547935758
SN - 0924-3046
VL - 16
SP - 151
EP - 166
JO - Advanced Composite Materials: The Official Journal of the Japan Society of Composite Materials
JF - Advanced Composite Materials: The Official Journal of the Japan Society of Composite Materials
IS - 2
ER -