Damage mechanics characterization of high-cycle fatigue in quasi-isotropic CFRP laminates

Atsushi Hosoi, Hirokazu Karasawa, Hiroyuki Kawada

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This paper describes the high-cycle fatigue characteristics of quasi-isotropic CFRP laminates [-45/0/45/90] s up to 10 8 cycles. To investigate the fatigue behavior in the high-life region, the fatigue tests were conducted with the frequency of 100Hz since it's difficult to conduct the tests with 5Hz. Then, the damage behavior of the specimen was observed with a microscope, a soft X-ray photography and a 3D ultrasonic inspection system. In this study, to evaluate quantitative characteristics of each the transverse crack propagation and the delamination growth in the high-cycle region, the energy release rate associated with damage growth to the width direction was calculate. The transverse crack propagation and the delamination growth to the width direction were evaluated based on a modified Paris-law approach. As the results, it was found that transverse crack propagation didn't depend on the frequency within the small temperature change and it was observed that delamination growth delayed with the test condition of less than σ maxb=0.3 of the applied stress level.

    Original languageEnglish
    Title of host publicationProceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics
    Pages1729-1736
    Number of pages8
    Publication statusPublished - 2005
    Event2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics - Portland, OR
    Duration: 2005 Jun 72005 Jun 9

    Other

    Other2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics
    CityPortland, OR
    Period05/6/705/6/9

    Fingerprint

    Carbon fiber reinforced plastics
    Laminates
    Mechanics
    Delamination
    Fatigue of materials
    Crack propagation
    Energy release rate
    Radiography
    Microscopes
    Inspection
    Ultrasonics
    Temperature

    Keywords

    • CFRP laminates
    • Crack propagation
    • Delamination growth
    • Energy release rate
    • High-cycle fatigue

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Hosoi, A., Karasawa, H., & Kawada, H. (2005). Damage mechanics characterization of high-cycle fatigue in quasi-isotropic CFRP laminates. In Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics (pp. 1729-1736)

    Damage mechanics characterization of high-cycle fatigue in quasi-isotropic CFRP laminates. / Hosoi, Atsushi; Karasawa, Hirokazu; Kawada, Hiroyuki.

    Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics. 2005. p. 1729-1736.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Hosoi, A, Karasawa, H & Kawada, H 2005, Damage mechanics characterization of high-cycle fatigue in quasi-isotropic CFRP laminates. in Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics. pp. 1729-1736, 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics, Portland, OR, 05/6/7.
    Hosoi A, Karasawa H, Kawada H. Damage mechanics characterization of high-cycle fatigue in quasi-isotropic CFRP laminates. In Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics. 2005. p. 1729-1736
    Hosoi, Atsushi ; Karasawa, Hirokazu ; Kawada, Hiroyuki. / Damage mechanics characterization of high-cycle fatigue in quasi-isotropic CFRP laminates. Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics. 2005. pp. 1729-1736
    @inproceedings{2d3c63720840409e802c595622e7bff6,
    title = "Damage mechanics characterization of high-cycle fatigue in quasi-isotropic CFRP laminates",
    abstract = "This paper describes the high-cycle fatigue characteristics of quasi-isotropic CFRP laminates [-45/0/45/90] s up to 10 8 cycles. To investigate the fatigue behavior in the high-life region, the fatigue tests were conducted with the frequency of 100Hz since it's difficult to conduct the tests with 5Hz. Then, the damage behavior of the specimen was observed with a microscope, a soft X-ray photography and a 3D ultrasonic inspection system. In this study, to evaluate quantitative characteristics of each the transverse crack propagation and the delamination growth in the high-cycle region, the energy release rate associated with damage growth to the width direction was calculate. The transverse crack propagation and the delamination growth to the width direction were evaluated based on a modified Paris-law approach. As the results, it was found that transverse crack propagation didn't depend on the frequency within the small temperature change and it was observed that delamination growth delayed with the test condition of less than σ max/σ b=0.3 of the applied stress level.",
    keywords = "CFRP laminates, Crack propagation, Delamination growth, Energy release rate, High-cycle fatigue",
    author = "Atsushi Hosoi and Hirokazu Karasawa and Hiroyuki Kawada",
    year = "2005",
    language = "English",
    isbn = "0912053909",
    pages = "1729--1736",
    booktitle = "Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics",

    }

    TY - GEN

    T1 - Damage mechanics characterization of high-cycle fatigue in quasi-isotropic CFRP laminates

    AU - Hosoi, Atsushi

    AU - Karasawa, Hirokazu

    AU - Kawada, Hiroyuki

    PY - 2005

    Y1 - 2005

    N2 - This paper describes the high-cycle fatigue characteristics of quasi-isotropic CFRP laminates [-45/0/45/90] s up to 10 8 cycles. To investigate the fatigue behavior in the high-life region, the fatigue tests were conducted with the frequency of 100Hz since it's difficult to conduct the tests with 5Hz. Then, the damage behavior of the specimen was observed with a microscope, a soft X-ray photography and a 3D ultrasonic inspection system. In this study, to evaluate quantitative characteristics of each the transverse crack propagation and the delamination growth in the high-cycle region, the energy release rate associated with damage growth to the width direction was calculate. The transverse crack propagation and the delamination growth to the width direction were evaluated based on a modified Paris-law approach. As the results, it was found that transverse crack propagation didn't depend on the frequency within the small temperature change and it was observed that delamination growth delayed with the test condition of less than σ max/σ b=0.3 of the applied stress level.

    AB - This paper describes the high-cycle fatigue characteristics of quasi-isotropic CFRP laminates [-45/0/45/90] s up to 10 8 cycles. To investigate the fatigue behavior in the high-life region, the fatigue tests were conducted with the frequency of 100Hz since it's difficult to conduct the tests with 5Hz. Then, the damage behavior of the specimen was observed with a microscope, a soft X-ray photography and a 3D ultrasonic inspection system. In this study, to evaluate quantitative characteristics of each the transverse crack propagation and the delamination growth in the high-cycle region, the energy release rate associated with damage growth to the width direction was calculate. The transverse crack propagation and the delamination growth to the width direction were evaluated based on a modified Paris-law approach. As the results, it was found that transverse crack propagation didn't depend on the frequency within the small temperature change and it was observed that delamination growth delayed with the test condition of less than σ max/σ b=0.3 of the applied stress level.

    KW - CFRP laminates

    KW - Crack propagation

    KW - Delamination growth

    KW - Energy release rate

    KW - High-cycle fatigue

    UR - http://www.scopus.com/inward/record.url?scp=32044440529&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=32044440529&partnerID=8YFLogxK

    M3 - Conference contribution

    AN - SCOPUS:32044440529

    SN - 0912053909

    SN - 9780912053905

    SP - 1729

    EP - 1736

    BT - Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics

    ER -