Evaluation of the effects of mixed-mode I-II loading on elastic-plastic ductile fracture of metallic materials

Anssi Laukkanen, Kim Wallin, Rauno Rintamaa

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    10 Citations (Scopus)

    Abstract

    In order to evaluate the mixed-mode fracture behavior of elastic-plastic metallic materials, experimental tests and numerical calculations were carried out. Since the transition of fracture toughness between opening and in-plane shear modes with ductile materials is a question of controversy, single-edge notched bend (SENB) specimens were subjected to asymmetric four-point bending (ASFPB) to provide various mode portions using four materials: A533B pressure vessel steel, F82H ferritic stainless steel, sensitized AISI 304 austenitic stainless steel, and CuA125 copper alloy. Fracture resistance curves were determined and fractographical studies performed. Numerical studies focused on determining the J-integral and stress intensity factor (SIF) solutions for the experimental program and the Gurson-Tvergaard constitutive model was used to simulate continuum features of the fracture process. The results demonstrate that Mode II fracture toughness of ductile metallic materials can be significantly lower than Mode I fracture toughness. Studies of the micromechanical aspects of fracture demonstrate the factors and variables responsible for the behavior noted in this investigation.
    Original languageEnglish
    Title of host publicationProceedings of the Symposium on Mixed-Mode Crack Behavior
    EditorsK.J. Miller, D.L. McDowell
    PublisherAmerican Society for Testing and Materials ASTM
    Pages3-20
    ISBN (Print)0-8031-2602-6
    DOIs
    Publication statusPublished - 1999
    MoE publication typeA4 Article in a conference publication
    EventSymposium on Mixed-Mode Crack Behavior - Atlanta, United States
    Duration: 6 May 19987 May 1998

    Publication series

    SeriesASTM Special Technical Publication
    Volume1359
    ISSN0066-0558

    Conference

    ConferenceSymposium on Mixed-Mode Crack Behavior
    CountryUnited States
    CityAtlanta
    Period6/05/987/05/98

    Fingerprint

    Ductile fracture
    Fracture toughness
    Plastics
    Copper alloys
    Ferritic steel
    Steel structures
    Austenitic stainless steel
    Constitutive models
    Stress intensity factors
    Stainless steel

    Keywords

    • ductile fracture
    • mixed-mode
    • Mode I
    • Mode II
    • fracture toughness
    • fractography
    • shear fracture J-integral
    • Gurson-Tvergaard model
    • ProperTune

    Cite this

    Laukkanen, A., Wallin, K., & Rintamaa, R. (1999). Evaluation of the effects of mixed-mode I-II loading on elastic-plastic ductile fracture of metallic materials. In K. J. Miller, & D. L. McDowell (Eds.), Proceedings of the Symposium on Mixed-Mode Crack Behavior (pp. 3-20). American Society for Testing and Materials ASTM. ASTM Special Technical Publication, Vol.. 1359 https://doi.org/10.1520/STP14240S
    Laukkanen, Anssi ; Wallin, Kim ; Rintamaa, Rauno. / Evaluation of the effects of mixed-mode I-II loading on elastic-plastic ductile fracture of metallic materials. Proceedings of the Symposium on Mixed-Mode Crack Behavior. editor / K.J. Miller ; D.L. McDowell. American Society for Testing and Materials ASTM, 1999. pp. 3-20 (ASTM Special Technical Publication, Vol. 1359).
    @inproceedings{d34041673c0e4443bfa243cf27902153,
    title = "Evaluation of the effects of mixed-mode I-II loading on elastic-plastic ductile fracture of metallic materials",
    abstract = "In order to evaluate the mixed-mode fracture behavior of elastic-plastic metallic materials, experimental tests and numerical calculations were carried out. Since the transition of fracture toughness between opening and in-plane shear modes with ductile materials is a question of controversy, single-edge notched bend (SENB) specimens were subjected to asymmetric four-point bending (ASFPB) to provide various mode portions using four materials: A533B pressure vessel steel, F82H ferritic stainless steel, sensitized AISI 304 austenitic stainless steel, and CuA125 copper alloy. Fracture resistance curves were determined and fractographical studies performed. Numerical studies focused on determining the J-integral and stress intensity factor (SIF) solutions for the experimental program and the Gurson-Tvergaard constitutive model was used to simulate continuum features of the fracture process. The results demonstrate that Mode II fracture toughness of ductile metallic materials can be significantly lower than Mode I fracture toughness. Studies of the micromechanical aspects of fracture demonstrate the factors and variables responsible for the behavior noted in this investigation.",
    keywords = "ductile fracture, mixed-mode, Mode I, Mode II, fracture toughness, fractography, shear fracture J-integral, Gurson-Tvergaard model, ProperTune",
    author = "Anssi Laukkanen and Kim Wallin and Rauno Rintamaa",
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    year = "1999",
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    Laukkanen, A, Wallin, K & Rintamaa, R 1999, Evaluation of the effects of mixed-mode I-II loading on elastic-plastic ductile fracture of metallic materials. in KJ Miller & DL McDowell (eds), Proceedings of the Symposium on Mixed-Mode Crack Behavior. American Society for Testing and Materials ASTM, ASTM Special Technical Publication, vol. 1359, pp. 3-20, Symposium on Mixed-Mode Crack Behavior, Atlanta, United States, 6/05/98. https://doi.org/10.1520/STP14240S

    Evaluation of the effects of mixed-mode I-II loading on elastic-plastic ductile fracture of metallic materials. / Laukkanen, Anssi; Wallin, Kim; Rintamaa, Rauno.

    Proceedings of the Symposium on Mixed-Mode Crack Behavior. ed. / K.J. Miller; D.L. McDowell. American Society for Testing and Materials ASTM, 1999. p. 3-20 (ASTM Special Technical Publication, Vol. 1359).

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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    AU - Wallin, Kim

    AU - Rintamaa, Rauno

    N1 - Project code: V7SU00064

    PY - 1999

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    N2 - In order to evaluate the mixed-mode fracture behavior of elastic-plastic metallic materials, experimental tests and numerical calculations were carried out. Since the transition of fracture toughness between opening and in-plane shear modes with ductile materials is a question of controversy, single-edge notched bend (SENB) specimens were subjected to asymmetric four-point bending (ASFPB) to provide various mode portions using four materials: A533B pressure vessel steel, F82H ferritic stainless steel, sensitized AISI 304 austenitic stainless steel, and CuA125 copper alloy. Fracture resistance curves were determined and fractographical studies performed. Numerical studies focused on determining the J-integral and stress intensity factor (SIF) solutions for the experimental program and the Gurson-Tvergaard constitutive model was used to simulate continuum features of the fracture process. The results demonstrate that Mode II fracture toughness of ductile metallic materials can be significantly lower than Mode I fracture toughness. Studies of the micromechanical aspects of fracture demonstrate the factors and variables responsible for the behavior noted in this investigation.

    AB - In order to evaluate the mixed-mode fracture behavior of elastic-plastic metallic materials, experimental tests and numerical calculations were carried out. Since the transition of fracture toughness between opening and in-plane shear modes with ductile materials is a question of controversy, single-edge notched bend (SENB) specimens were subjected to asymmetric four-point bending (ASFPB) to provide various mode portions using four materials: A533B pressure vessel steel, F82H ferritic stainless steel, sensitized AISI 304 austenitic stainless steel, and CuA125 copper alloy. Fracture resistance curves were determined and fractographical studies performed. Numerical studies focused on determining the J-integral and stress intensity factor (SIF) solutions for the experimental program and the Gurson-Tvergaard constitutive model was used to simulate continuum features of the fracture process. The results demonstrate that Mode II fracture toughness of ductile metallic materials can be significantly lower than Mode I fracture toughness. Studies of the micromechanical aspects of fracture demonstrate the factors and variables responsible for the behavior noted in this investigation.

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    KW - Mode II

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    KW - shear fracture J-integral

    KW - Gurson-Tvergaard model

    KW - ProperTune

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    DO - 10.1520/STP14240S

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    SN - 0-8031-2602-6

    T3 - ASTM Special Technical Publication

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    EP - 20

    BT - Proceedings of the Symposium on Mixed-Mode Crack Behavior

    A2 - Miller, K.J.

    A2 - McDowell, D.L.

    PB - American Society for Testing and Materials ASTM

    ER -

    Laukkanen A, Wallin K, Rintamaa R. Evaluation of the effects of mixed-mode I-II loading on elastic-plastic ductile fracture of metallic materials. In Miller KJ, McDowell DL, editors, Proceedings of the Symposium on Mixed-Mode Crack Behavior. American Society for Testing and Materials ASTM. 1999. p. 3-20. (ASTM Special Technical Publication, Vol. 1359). https://doi.org/10.1520/STP14240S