TY - JOUR
T1 - Damage mechanisms in CFRP/HNT laminates under flexural and in-plane shear loadings using experimental and numerical methods
AU - AlKhateab, Baidaa
AU - Tabrizi, Isa Emami
AU - Zanjani, Jamal Seyyed Monfared
AU - Rahimi, Mohammad Naqib
AU - Poudeh, Leila Haghighi
AU - Kefal, Adnan
AU - Yildiz, Mehmet
PY - 2020/9
Y1 - 2020/9
N2 - This study is conducted to thoroughly scrutinize the role of nanotubes on the physics behind the deformation mechanisms and damage development in fiber reinforced polymer composites by using acoustic emission, digital image correlation, infrared thermography, fractography, and non-local meshless-numerical analysis, namely, Peridynamics. Carbon fiber laminates with and without Halloysite nanotubes (HNTs) are prepared and tested under flexural and in-plane shear loads. In depth analysis of the cumulative counts for acoustic emission data shows that the addition of HNTs mainly promotes the failure mechanisms associated with matrix cracking. Digital image correlation and infrared thermography analysis clearly prove that nanotubes prevent the coalescence of microcracks by blocking crack propagation or diverting its path. Fractography analysis shows that HNTs addition improves the interfacial strength despite promoting microcracks in the matrix. The hindrance of crack growth, crack tip splitting, and prevention of crack coalescence by HNTs clusters, are supported successfully by performing Peridynamic analysis.
AB - This study is conducted to thoroughly scrutinize the role of nanotubes on the physics behind the deformation mechanisms and damage development in fiber reinforced polymer composites by using acoustic emission, digital image correlation, infrared thermography, fractography, and non-local meshless-numerical analysis, namely, Peridynamics. Carbon fiber laminates with and without Halloysite nanotubes (HNTs) are prepared and tested under flexural and in-plane shear loads. In depth analysis of the cumulative counts for acoustic emission data shows that the addition of HNTs mainly promotes the failure mechanisms associated with matrix cracking. Digital image correlation and infrared thermography analysis clearly prove that nanotubes prevent the coalescence of microcracks by blocking crack propagation or diverting its path. Fractography analysis shows that HNTs addition improves the interfacial strength despite promoting microcracks in the matrix. The hindrance of crack growth, crack tip splitting, and prevention of crack coalescence by HNTs clusters, are supported successfully by performing Peridynamic analysis.
KW - 22/2 OA procedure
U2 - 10.1016/j.compositesa.2020.105962
DO - 10.1016/j.compositesa.2020.105962
M3 - Article
SN - 1359-835X
VL - 136
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
M1 - 105962
ER -