TY - JOUR
T1 - Prediction of tensile strength of discontinuous carbon fiber/polypropylene composite with fiber orientation distribution
AU - Hashimoto, M.
AU - Okabe, T.
AU - Sasayama, T.
AU - Matsutani, H.
AU - Nishikawa, M.
N1 - Funding Information:
The authors acknowledge the support of the New Energy and Industrial Technology Development Organization (NEDO) (Project No. P08024).
Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012/10
Y1 - 2012/10
N2 - This study proposes the layer-wise method (LWM) as a new approach for predicting the tensile strength of discontinuous fiber-reinforced composites that have arbitrary fiber orientation angles. The LWM assumes the discontinuous fiber-reinforced composites are identical to laminates that are composed of unidirectional fiber-reinforced plies and have the same distribution of fiber angles over the entire laminate. We applied the LWM to discontinuous carbon fiber polypropylene composites and evaluated the effect of fiber length on tensile strength and fracture mode. Simulated results agreed well with those of experiments. In addition, we proposed a simple analytical model based on micromechanics. This analytical model can correctly evaluate the strength and the fracture mode as effectively as the LWM. We also compared these models with a rule of mixture considering the failure criterion of fiber breakage and examined the limitation of the rule of mixture in predicting composite strength.
AB - This study proposes the layer-wise method (LWM) as a new approach for predicting the tensile strength of discontinuous fiber-reinforced composites that have arbitrary fiber orientation angles. The LWM assumes the discontinuous fiber-reinforced composites are identical to laminates that are composed of unidirectional fiber-reinforced plies and have the same distribution of fiber angles over the entire laminate. We applied the LWM to discontinuous carbon fiber polypropylene composites and evaluated the effect of fiber length on tensile strength and fracture mode. Simulated results agreed well with those of experiments. In addition, we proposed a simple analytical model based on micromechanics. This analytical model can correctly evaluate the strength and the fracture mode as effectively as the LWM. We also compared these models with a rule of mixture considering the failure criterion of fiber breakage and examined the limitation of the rule of mixture in predicting composite strength.
KW - A. Discontinuous reinforcement
KW - A. Polymer-matrix composites (PMCs)
KW - B. Strength
KW - Fracture mode analysis
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U2 - 10.1016/j.compositesa.2012.05.006
DO - 10.1016/j.compositesa.2012.05.006
M3 - Article
AN - SCOPUS:84865627378
VL - 43
SP - 1791
EP - 1799
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
SN - 1359-835X
IS - 10
ER -