TY - JOUR
T1 - Impact damage and residual tensile strength of a CF-SMC composite
AU - Ogi, Keiji
AU - Kim, Jang Woo
AU - Ono, Kousei
AU - Uda, Nobuhide
N1 - Funding Information:
The authors express their appreciation to Toray Industries, Inc. for the offer of SMC specimens. The authors also thank Dr Shu Minakuchi of Tokyo University for his technical support in impact testing. This research is partly supported by a Grant-in-Aid (No. 21360417) for Scientific Research of the Ministry of Education, Science, Sports and Culture of Japan.
PY - 2013
Y1 - 2013
N2 - In this study, the impact damage and the tension after impact (TAI) strength of a carbon-fiber-reinforced sheet molding compound (CF-SMC) are analyzed. First, low-velocity impact damage is introduced to several CF-SMC coupon specimens for a variety of impact energies. Next, the impact damage is observed by ultrasonic inspection and optical microscopy to determine the damage state and quantify the damage area and depth. Then, the TAI strength is measured and correlated with such parameters as maximum impact load, impact energy, and damage area and depth. Finally, a simple fracture-mechanics model for predicting the TAI strength is proposed. It is proved that the TAI strength depends on the impact damage depth.
AB - In this study, the impact damage and the tension after impact (TAI) strength of a carbon-fiber-reinforced sheet molding compound (CF-SMC) are analyzed. First, low-velocity impact damage is introduced to several CF-SMC coupon specimens for a variety of impact energies. Next, the impact damage is observed by ultrasonic inspection and optical microscopy to determine the damage state and quantify the damage area and depth. Then, the TAI strength is measured and correlated with such parameters as maximum impact load, impact energy, and damage area and depth. Finally, a simple fracture-mechanics model for predicting the TAI strength is proposed. It is proved that the TAI strength depends on the impact damage depth.
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U2 - 10.1080/09243046.2013.764779
DO - 10.1080/09243046.2013.764779
M3 - Article
AN - SCOPUS:84878060698
VL - 22
SP - 29
EP - 47
JO - Advanced Composite Materials
JF - Advanced Composite Materials
SN - 0924-3046
IS - 1
ER -