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Evaluating Strains Around Fiber and Matrix Interface of CFRP Using Global Digital Image Correlation

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Advancement of Optical Methods and Fracture and Fatigue, Volume 3 (SEM 2023)

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Abstract

This study deals with the measurement of the displacement and discontinuous strain distributions around fiber and matrix interface of CFRP. Not only finite element global digital image correlation (FE global DIC) but also global DIC and local DIC are used for this purpose, and the results are compared. FE global DIC obtains nodal displacements by considering both the correlation coefficient of brightness value and the nodal forces of a mesh. The effectiveness of FE global DIC is demonstrated by applying it to the specimen simulating the section of CFRP. The measurement results by FE global DIC show the discontinuous strain distribution around the fiber-matrix interface. Therefore, these results reveal the effectiveness of FE global DIC to measure the strain field of a cross section in CFRP.

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References

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, College of Science and Engineering, Aoyama Gakuin University, Sagamihara, Japan

    Yuki Tsujii, Saki Yokoyama, Keisuke Iizuka & Satoru Yoneyama

Authors
  1. Yuki Tsujii
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  2. Saki Yokoyama
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  3. Keisuke Iizuka
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  4. Satoru Yoneyama
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Corresponding author

Correspondence to Satoru Yoneyama .

Editor information

Editors and Affiliations

  1. Worcester Polytechnic Institute, Worcester, MA, USA

    Cosme Furlong

  2. National Applied Research Laboratories, Taiwan Instrument Technology Institute, Hsinchu, Taiwan

    Chi-Hung Hwang

  3. National Institute of Standards and Technology, Gaithersburg, MD, USA

    Gordon Shaw

  4. Utah State University, Logan, UT, USA

    Ryan Berke

  5. Engg, 245 Fluor Daniel Building, Clemson Univ, Dept Mechanical, Clemson, SC, USA

    Garrett Pataky

  6. Mechanical Science and Eng, University of IL Urbana-Champaign, Urbana, IL, USA

    Shelby Hutchens

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Tsujii, Y., Yokoyama, S., Iizuka, K., Yoneyama, S. (2024). Evaluating Strains Around Fiber and Matrix Interface of CFRP Using Global Digital Image Correlation. In: Furlong, C., Hwang, CH., Shaw, G., Berke, R., Pataky, G., Hutchens, S. (eds) Advancement of Optical Methods and Fracture and Fatigue, Volume 3. SEM 2023. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-031-50499-0_3

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