期刊
COMPOSITE STRUCTURES
卷 109, 期 -, 页码 1-7出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2013.10.049
关键词
Carbon fibers; Impact behavior; Non-destructive testing; Eddy current pulsed thermography
资金
- EPSRC, UK [EP/E005071]
- National Natural Science Foundation of China [61171134]
- China Scholarship Council
- Engineering and Physical Sciences Research Council [EP/F06151X/1, EP/E005071/1] Funding Source: researchfish
- EPSRC [EP/F06151X/1, EP/E005071/1] Funding Source: UKRI
With the growing interest to use engineering composite structures, much attention is devoted to the development of non-destructive testing (NOT) techniques for impact evaluation. Eddy current pulsed thermography (ECPT) is an emerging NOT technique, which is firstly investigated for crack evaluation in carbon fiber reinforced plastic (CFRP) in 2011 and the preliminary results have shown the significant potential. However, the research is limited by the experimental conditions. In this work, the detection mechanism for carbon fiber structure and impact are analyzed through theoretic analysis and validated by experimental studies under reflection and transmission modes. Laminates impacted with different energies from 4 J to 12 J are characterised. The qualitative and quantitative conclusions for impact behavior understanding are outlined, which is helpful to develop the reliable instruments for quality control and in-service inspection of CFRP. (C) 2013 Elsevier Ltd. All rights reserved.
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