TY - JOUR
T1 - Characterization of high-velocity impact damage in CFRP laminates
T2 - Part II - Prediction by smoothed particle hydrodynamics
AU - Yashiro, Shigeki
AU - Ogi, Keiji
AU - Yoshimura, Akinori
AU - Sakaida, Yoshihisa
N1 - Funding Information:
S. Y. acknowledges the support of the Ministry of Education, Culture, Sports, Science and Technology of Japan under Grants-in-Aid for Scientific Research (Nos. 21360417 and 22760524 ).
PY - 2014
Y1 - 2014
N2 - High-velocity impact damage in CFRP laminates was studied experimentally and numerically. Part I of this study observed and evaluated near-perforation damage in the laminates and characterized the damage pattern experimentally. Part II predicts the extension of high-velocity impact damage based on smoothed particle hydrodynamics (SPH), which facilitates the analysis of large deformations, contact, and separation of objects. A cross-ply laminate was divided into 0 and 90 layers, and virtual interlayer particles were inserted to express delamination. The damage patterns predicted on the surfaces and cross-sections agreed well with the experiments. The analyzed delamination shape was similar to that resulting from a low-velocity impact, consisting of pairs of fan-shaped delaminations symmetric about the impact point. Finally, the mechanisms of high-velocity impact damage in CFRP laminates are discussed based on the observations and numerical analyses.
AB - High-velocity impact damage in CFRP laminates was studied experimentally and numerically. Part I of this study observed and evaluated near-perforation damage in the laminates and characterized the damage pattern experimentally. Part II predicts the extension of high-velocity impact damage based on smoothed particle hydrodynamics (SPH), which facilitates the analysis of large deformations, contact, and separation of objects. A cross-ply laminate was divided into 0 and 90 layers, and virtual interlayer particles were inserted to express delamination. The damage patterns predicted on the surfaces and cross-sections agreed well with the experiments. The analyzed delamination shape was similar to that resulting from a low-velocity impact, consisting of pairs of fan-shaped delaminations symmetric about the impact point. Finally, the mechanisms of high-velocity impact damage in CFRP laminates are discussed based on the observations and numerical analyses.
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U2 - 10.1016/j.compositesa.2013.04.012
DO - 10.1016/j.compositesa.2013.04.012
M3 - Article
AN - SCOPUS:84889088576
SN - 1359-835X
VL - 56
SP - 308
EP - 318
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
ER -