Recent progresses in the inspection of aerospace components by infrared thermography
The use NonDestructive Testing and Evaluation (NDT&E) techniques for the inspection of aerospace materials has progressively increase in the last few decades as commercial and military aircrafts exceed their initial design life. Aerospace components are typically made of aluminium, honeycomb structures, composites or fibre metal laminates (FML), which are affected by different types of anomalies, namely: delaminations, disbonds, water ingress, node failure and core crushing. Possible causes are either material contamination introduced during manufacture, e.g. dirt, solvents, moisture, oils, etc.; or by damages caused during in-flight operation,e.g. after impact. Infrared thermography techniques have proven to be an effective way to detect and, in many cases, to quantify the degree of surface and subsurface damage on such components. Several configurations have been proposed to achieve an active thermography inspection ranging from passive inspection, i.e. without applying any external stimulation, to active approaches, in which an external source of energy is used to produce a thermal contrast between the non-defective and the defective material. The thermal stimulation can be delivered to the specimen surface by optical, mechanical, electromagnetic or other means. The physics and the practical considerations behind these approaches are different in all cases, and the selection of one or another will depend on the specific application and the availability of the equipment. In this paper, a review of recent developments on the thermographic inspection of aerospace materials is proposed. Some guidelines, supported with examples on real and academic specimens, are provided to illustrate the most suitable technique to be considered for some conventional applications.
infrared thermography fibre metal laminates honeycomb structures composites aluminium.
by Clemente Ibarra-Castanedo Ermanno Grinzato Sergio Marinetti Paolo Bison Marc Genest Marc Grenier Jean-Marc Piau Abdelhakim Bendada Xavier Maldague
Computer Vision and Systems Laboratory, Department of Electrical and Computer Engineering, Universit Istituto per le Tecnologie della Costruzione - Consiglio Nazionale delle Ricerche (ITC-CNR), Corso S Institute for Aerospace Research (IAR), National Research Council Canada (NRC), 1200 Montreal Road,
国际会议
第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)
上海
英文
3922-3930
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）