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Title : 工程力学实验教学中心副主任 工程力学系教学秘书

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Paper Publications

Title of Paper:基于锁相红外热成像理论的复合材料网格加筋结构的无损检测

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Date of Publication:2022-06-29

Journal:复合材料学报

Affiliation of Author(s):运载工程与力学学部

Volume:28

Issue:1

Page Number:199-205

ISSN No.:1000-3851

Abstract:Based on infrared lock-in thermography technology, the nondestructive
   testing of composite grid stiffened structures with typical defects was
   carried out. The result was also analyzed using infrared lock-in
   thermography system developed by Cedip in France. The effects of loading
   frequency and output voltage offset to the testing result were
   discussed. The result shows that there are more information of phase
   figures than that of amplitude figures. Different frequencies will lead
   to different results and the loading frequency is the key to the
   success. Increasing the output voltage offset will make a useful
   contribution for better testing. This method is feasible to inspect the
   unknown defect of composite materials

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