TY - JOUR
T1 - Effects of temperature and stacking sequence on the model interlaminar fracture behavior of composite laminates
AU - Kim, H. S.
AU - Wang, W. X.
AU - Takao, Y.
N1 - Copyright:
Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
PY - 2000
Y1 - 2000
N2 - The purpose of the present study was to clarify the effects of temperature and fiber orientation on the Mode I interlaminar fracture toughness, GI (GIC: GI at initiation, GIR: GI at propagation), of carbon/epoxy composite laminates. In our previous study, the conventional double cantilever beam (DCB) tests were performed to investigate the effects of temperature and fiber orientation in CFRP laminates. It was shown that GI was obviously affected by the temperature and fiber orientation. Especially, in case of the specimen with [45//-45] interface, GIR was considerably affected by both failure mechanisms of crack jumping and fiber bridging. Therefore, in the present study, to suppress the effects of crack jumping and fiber bridging occurred in multidirectional laminates, the side notched double cantilever beam (SN-DCB) specimen is used. DCB tests of [22.5//-22.5] and [45//-45] SN-DCB specimens are conducted at three temperatures, that is, -100°C, 25°C and 150°C. GIC was affected by temperature and fiber orientation, obviously and slightly, respectively. In contrast to GIC, GIR was considerably affected by both temperature and fiber orientation.
AB - The purpose of the present study was to clarify the effects of temperature and fiber orientation on the Mode I interlaminar fracture toughness, GI (GIC: GI at initiation, GIR: GI at propagation), of carbon/epoxy composite laminates. In our previous study, the conventional double cantilever beam (DCB) tests were performed to investigate the effects of temperature and fiber orientation in CFRP laminates. It was shown that GI was obviously affected by the temperature and fiber orientation. Especially, in case of the specimen with [45//-45] interface, GIR was considerably affected by both failure mechanisms of crack jumping and fiber bridging. Therefore, in the present study, to suppress the effects of crack jumping and fiber bridging occurred in multidirectional laminates, the side notched double cantilever beam (SN-DCB) specimen is used. DCB tests of [22.5//-22.5] and [45//-45] SN-DCB specimens are conducted at three temperatures, that is, -100°C, 25°C and 150°C. GIC was affected by temperature and fiber orientation, obviously and slightly, respectively. In contrast to GIC, GIR was considerably affected by both temperature and fiber orientation.
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M3 - Conference article
AN - SCOPUS:0033690350
VL - 183
SP - II/-
JO - Key Engineering Materials
JF - Key Engineering Materials
SN - 1013-9826
T2 - 4th International Conference on Fracture and Strength of Solids
Y2 - 16 August 2000 through 18 August 2000
ER -