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Fringe analysis of moire interferometry for studying micromechanical behavior of composite materials

机译:用于研究复合材料微机械性能的莫尔干涉仪条纹分析

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Abstract: An automated Fourier-transform method of phase retrieval of moire interferometric fringe pattern is presented. The method is shown to provide fast and accurate determination of the phase information by removing the carrier without shifting in frequency domain the filtered Fourier spectrum of the carrier-modulated moire fringe pattern. The principle of the method is described and moire interferometric measurements with submicron sensitivity of the in-plane displacement fields of thick carbon fiber/PEEK composite laminates are analyzed as example of application of the technique.!11
机译:摘要:提出了一种自动的傅里叶变换相位干涉纹条纹图案相位检索方法。示出了该方法通过去除载波而在频域中不偏移载波调制的莫尔条纹图案的滤波后的傅里叶频谱,从而提供了快速准确的相位信息确定。描述了该方法的原理,并分析了具有亚微米灵敏度的厚碳纤维/ PEEK复合材料层合板的面内位移场的莫尔干涉测量方法!11

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