2013 Fiscal Year Final Research Report
Development of damage monitoring system for CFRP lamainates using directional piezoelectric elements
| Project/Area Number |
23560821
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Composite materials/Physical properties
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
TOYAMA NOBUYUKI 独立行政法人産業技術総合研究所, 計測フロンティア研究部門, 主任研究員 (60344165)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 超音波探傷 / 非破壊検査 / 構造ヘルスモニタリング / 複合材料 / 衝撃損傷 / ラム波 / 圧電素子 |
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| Research Abstract |
This study develops arrayed-transducers consisted of directional piezoelectric elements for damage monitoring of thin carbon fiber reinforced plastics (CFRP) laminates. A directional piezoelectric element for the low-frequency Lamb mode was designed and its performance was evaluated. The directional piezoelectric elements were applied to the pulse-echo method to detect damage in thin plates and their usefulness was demonstrated.
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