Testing Method for Evaluation of Mode II Fatigue Delamination Growth Behaviors of Advanced Composite Materials by Applying CSD Measurement.
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- LI Zheng-Wang
- Department of Naval Architecture and Ocean Engineering, Graduate School of Engineering, the University of Tokyo
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- KIMPARA Isao
- Department of Naval Architecture and Ocean Engineering, Graduate School of Engineering, the University of Tokyo
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- KAGEYAMA Kazuro
- Department of Naval Architecture and Ocean Engineering, Graduate School of Engineering, the University of Tokyo
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- SUZUKI Toshio
- Department of Naval Architecture and Ocean Engineering, Graduate School of Engineering, the University of Tokyo
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- OHSAWA Isamu
- Department of Naval Architecture and Ocean Engineering, Graduate School of Engineering, the University of Tokyo
Bibliographic Information
- Other Title
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- CSD測定による先進複合材料のモードII層間疲労はく離進展特性評価法
- CSD ソクテイ ニヨル センシン フクゴウ ザイリョウ ノ モード2 ソウカ
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Abstract
The crack shear displacement (CSD) is theoretically four times sensitive to the crack propagation than that of the load point displacement. In this paper based on CSD measurement, a new testing method for mode II fatigue delamination growth of unidirectional CFRP laminates was developed. Mode II fatigue tests are conducted by applying the end-notched flexure (ENF) specimen and controlled by a computer through the parameter of maximum mode II energy release rate (GIImax). The crack length and the GIImax were measured through the CSD compliance. In order to measure the CSD with a high accuracy, experimental techniques, such as selection of the gage, mounting method of the gage and methods for preventing the ENF specimen from shifting during fatigue, were fully examined. Especially, with the solution of the friction problem which exists between the surfaces of the mode II crack, the accuracy and the stability of the CSD measurement have been greatly improved. As test conditions, the influence of the loading frequency and the suitable range of the normalized GIImax gradient of the GIImax-shedding test were also discussed.
Journal
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- Journal of the Japan Society for Composite Materials
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Journal of the Japan Society for Composite Materials 23 (3), 92-99, 1997
The Japan Society for Composite Materials
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Details 詳細情報について
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- CRID
- 1390282679600417536
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- NII Article ID
- 10002465017
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- NII Book ID
- AN00196748
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- ISSN
- 18848559
- 03852563
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- NDL BIB ID
- 4214797
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed