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A deformation analysis method is proposed for additively manufactured (AM) specimens whereby speckles/moiré patterns are 3D printed into a specimen to allow for analysis by two methods Computer-Aided Speckle Interferometry (CASI) and Sampling Moiré Method (SMM). The additively manufactured moiré patterns/speckles enable control over moiré patterns/speckle size, depth, and density. Additively manufacturing a speckle pattern allows for control over pattern generation methods (pseudo-random, Goodman) to find the optimum speckle configuration for a selected specimen. Material behaviors of the speckled specimen and un-speckled specimen are characterized and compared to determine the impact of the speckle pattern on the specimen’s material properties.

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An Additively Manufactured Pattern Generation Technique for Deformation Analysis of Additively Manufactured Specimens

  • 会议论文

  • 发表日期：

    2025年

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  • Nicolas A. Yusim,
  • Austin M. Giordano,
  • Fu-Pen Chiang

摘要

A deformation analysis method is proposed for additively manufactured (AM) specimens whereby speckles/moiré patterns are 3D printed into a specimen to allow for analysis by two methods Computer-Aided Speckle Interferometry (CASI) and Sampling Moiré Method (SMM). The additively manufactured moiré patterns/speckles enable control over moiré patterns/speckle size, depth, and density. Additively manufacturing a speckle pattern allows for control over pattern generation methods (pseudo-random, Goodman) to find the optimum speckle configuration for a selected specimen. Material behaviors of the speckled specimen and un-speckled specimen are characterized and compared to determine the impact of the speckle pattern on the specimen’s material properties.