Accurate measurement of composite laminates deflection using digital speckle pattern interferometry

被引：12
|
作者：
Gu, Guoqing [1 ]
Wang, Kaifu [1 ]
Zhou, Keyin [1 ]
Xu, Xing [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Aerosp Engn, Nanjing 210016, Jiangsu, Peoples R China
来源：
OPTIK | 2013年 / 124卷 / 20期
关键词：
Composite laminate deflection; DSPI; Phase-shifting method; PDM; DPM; DEFORMATION;
D O I：
10.1016/j.ijleo.2012.12.028
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The modern digital speckle pattern interferometry (DSPI) technique is applied for the accurate measurement of the full-field deflection distribution of a bent composite laminates. Two kinds of powerful phase-shifting methods, phase of differences method (PDM) and difference of phases method (DPM), are described briefly and employed in DSPI to quantitatively extract the phase information, respectively. A comparison of the deflection distributions measured by DPM and PDM indicates that the former has a better measurement accuracy than the latter in laminate's static test experiment. (c) 2013 Elsevier GmbH. All rights reserved.
引用
收藏
页码：4117 / 4119
页数：3
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