TY - GEN
T1 - Strain-energy release rate analysis of composite laminates with locally embedded delaminations
AU - Kunoo, Kazuo
AU - Uda, Nobuhide
AU - Ono, Kousei
AU - Onohara, Kaoru
PY - 1991
Y1 - 1991
N2 - This paper presents experimental and analytical studies of [0/90/-45/+45]S carbon/epoxy laminates with locally embedded delaminations. These laminates are subjected to quasi-static tension, and the strain distributions on the surface of the laminates are investigated using a moire method and a three-dimensional finite element method. These results indicate the strong influence of delaminations on the surface strain distributions of the laminates. The distributions of strain-energy release rates along the delamination crack front are calculated through three-dimensional finite element analysis using a new technique which is based on a virtual crack closure technique. The results show concentrations of GIII at the delamination crack front near the free edge of the laminates.
AB - This paper presents experimental and analytical studies of [0/90/-45/+45]S carbon/epoxy laminates with locally embedded delaminations. These laminates are subjected to quasi-static tension, and the strain distributions on the surface of the laminates are investigated using a moire method and a three-dimensional finite element method. These results indicate the strong influence of delaminations on the surface strain distributions of the laminates. The distributions of strain-energy release rates along the delamination crack front are calculated through three-dimensional finite element analysis using a new technique which is based on a virtual crack closure technique. The results show concentrations of GIII at the delamination crack front near the free edge of the laminates.
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M3 - Conference contribution
AN - SCOPUS:0026373795
SN - 4130661108
T3 - Theoretical and Applied Mechanics
SP - 137
EP - 145
BT - Theoretical and Applied Mechanics
PB - Publ by Univ of Tokyo Press
T2 - Proceedings of the 40th Japan National Congress for Applied Mechanics - NCTAM-40
Y2 - 11 December 1990 through 13 December 1990
ER -