2013 Fiscal Year Final Research Report
Evaluation of impact fracture characteristics of laminated composites : enhancement of measurement accuracy
| Project/Area Number |
22560686
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Composite materials/Physical properties
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| Research Institution | Okayama University of Science |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NAKAI Kenji 岡山理科大学, 工学部, 准教授 (70388924)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | 複合材料物性 / 衝撃層間せん断強度 / 衝撃層間破壊じん性 / ホプキンソン棒法 / ひずみ速度 |
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| Research Abstract |
The aim of the present study was two-fold: to accurately evaluate (1) the impact interlaminar shear strength and (2) the mode II impact interlaminar shear fracture toughness of laminated composites.
The first aim was successfully accomplished by developing modified Iosipescu specimens for determining the impact interlaminar shear strength. In contrast, the second aim was not successfully achieved, because our developed impact bend test technique did not enable us to accurately determine a small impact load applied to end-notched flexure specimens. This work is still in progress to improve the measurement accuracy of the impact load.
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