期刊
COMPOSITES SCIENCE AND TECHNOLOGY
卷 126, 期 -, 页码 17-26出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2016.02.007
关键词
NDT; Laser line thermography; X-ray computed tomography; Finite element method; Composite stitching
资金
- Consortium for Research and Innovation in Aerospace in Quebec (CRIAQ) [CRIAQ COMP-501-CRDPJ 408010-10]
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- government of Quebec
- government of Bavaria, Ministere des Relations Internationales
- Ministry of External Affairs [13.311]
- Bell Helicopter (Canada) Inc.
- Bombardier Inc.
- Canada Research Chair in Multipolar Infrared Vision (MiViM)
- Delastek Inc.
- Hutchinson Inc.
- Texonic Inc.
- CTT group
Stitching is used to reduce incomplete infusion of T-joint core (dry-core) and reinforce T-joint structure. However, it might cause new types of flaws, especially micro-sized flaws. In this paper, a new micro-laser line thermography (micro-LLT) is presented. X-ray micro-computed tomography (micro-CT) was used to validate the infrared results. The micro-LLT and micro-CT inspection are compared. Then, a finite element analysis (FEA) is performed. The geometrical model needed for finite element discretization was developed from micro-CT measurements. The model is validated for the experimental results. Finally a comparison of the experiments and simulation is conducted. The infrared experimental phenomenon and results are explained based on the FEA results. (C) 2016 Elsevier Ltd. All rights reserved.
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