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论文类型：期刊论文

发表时间：2016-01-01

发表刊物：POLYMERS & POLYMER COMPOSITES

收录刊物：SCIE、EI、Scopus

卷号：24

期号：2

页面范围：149-154

ISSN号：0967-3911

关键字：CFRP; Defects; Delamination; Porosity

摘要：Although carbon fiber reinforced plastic (CFRP) is ideally high mechanical performance, manufacturing induced defects are hardly avoidable and their appearances generally result in a loss of mechanical properties. To accurately characterize this kind of defects is a foundation to estimate mechanical performance of a CFRP structure. Compared to the traditional defect assessment methods, X-ray computed tomography (CT) has been approved a promising method due to its ability to provide spatial information of defect. In this study, the effect of resolution on the accuracy of defects estimation was investigated in details. Scanning data obtained by using two different resolutions were comparatively studied based on delamination characterization. In addition, an image processing based method for porosity estimation was discussed as well. It is concluded that it is possible for us to enlarge our region of interest by selecting a reasonable resolution not at cost of losing too much desired details.