TY - GEN
T1 - Estimation of anisotropic elastic properties of carbon fibers using nanoindentation
AU - Guruprasad, Thimmappa Shetty
AU - Keryvin, Vincent
AU - Bourmaud, Alain
N1 - Publisher Copyright:
© Czech Technical University in Prague, 2020.
PY - 2020/6/11
Y1 - 2020/6/11
N2 - Understanding the mechanical behavior of carbon fiber reinforced polymers requires knowledge on the deformation behavior of carbon fibers, they are highly anisotropic and heterogeneous. Nanoindentation is an efficient method for determining the mechanical properties in small volumes of materials. For isotropic materials, a single nanoindentation test can evaluate an elastic properties of the material. But for anisotropic material, the difficulty increases since measured indentation modulus depends on five elastic parameters (El,Et,Glt, νlt,and νtt) of the material. Nanoindentation experiments are performed on carbon fibers orientated between 0◦ to 90◦ at ten different orientations to the fiber axis. From theoretical models given by Vlassak et al. and Delafargue and Ulm, the elastic constants are predicted numerically by comparing the results of indentation modulus versus orientation angle with the experiments.
AB - Understanding the mechanical behavior of carbon fiber reinforced polymers requires knowledge on the deformation behavior of carbon fibers, they are highly anisotropic and heterogeneous. Nanoindentation is an efficient method for determining the mechanical properties in small volumes of materials. For isotropic materials, a single nanoindentation test can evaluate an elastic properties of the material. But for anisotropic material, the difficulty increases since measured indentation modulus depends on five elastic parameters (El,Et,Glt, νlt,and νtt) of the material. Nanoindentation experiments are performed on carbon fibers orientated between 0◦ to 90◦ at ten different orientations to the fiber axis. From theoretical models given by Vlassak et al. and Delafargue and Ulm, the elastic constants are predicted numerically by comparing the results of indentation modulus versus orientation angle with the experiments.
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U2 - 10.14311/APP.2020.27.0107
DO - 10.14311/APP.2020.27.0107
M3 - Conference contribution
AN - SCOPUS:85100906566
T3 - Acta Polytechnica CTU Proceedings
SP - 107
EP - 111
BT - Proceedings of the 14th International Conference on Local Mechanical Properties, LMP 2019
A2 - Nemecek, Jiri
A2 - Hausild, Petr
A2 - Ctvrtlik, Radim
PB - Czech Technical University
T2 - 14th International Conference on Local Mechanical Properties, LMP 2019
Y2 - 6 November 2019 through 8 November 2019
ER -