剪切照相
材料科学
光学
复合数
有限元法
过程(计算)
复合材料
干涉测量
计算机科学
结构工程
物理
操作系统
工程类
作者
Diego Staub Felipe,Mauro Eduardo Benedet,A. V. Fantin,Daniel P. Willemann,Fabiana Dias Fonseca Martins,A. L. F. S. d’Almeida,Sérgio Damasceno Soares,Armando Albertazzi Gonçalves,Arcanjo Lenzi
出处
期刊:Applied Optics
[The Optical Society]
日期:2020-09-14
卷期号:59 (27): 8089-8089
被引量:4
摘要
This paper presents a numerical-experimental procedure to characterize through-holes with arbitrary shapes present on metallic substrates under composite material sleeves using pulsed laser shearography and dynamic excitation combined to the finite element method. The so-called fitting process consists of matching experimental and numerical results in order to determine the shape and dimensions of the holes under the composite repair, or even quantify defects between layers of the composite laminate. The results show that the technique is capable of characterizing, in the worst case, the geometry of a hole with 83% accuracy and its respective area with a maximum error of approximately 20%. The advantageous results achieved in this research show that the fitting process can be very useful for real applications in the oil and petroleum industry.
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