Fatigue failure of an open cell and a closed cell aluminium alloy foam

Harte, A M; Fleck, N A; Ashby, M F

doi:10.1016/S1359-6454(99)00097-X

Title: Fatigue failure of an open cell and a closed cell aluminium alloy foam

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Abstract

The tension-tension and compression-compression cyclic properties are measured for an open cell Duocel foam of composition Al 6101-T6, and a closed cell Alporas foam of composition Al-5Ca-3Ti (wt%). the Duocel foam has a relatively uniform microstructure, and undergoes homogeneous straining in both monotonic and fatigue tests. In contrast, the Alporas foam is more irregular in microstructure, and exhibits crush-band formation at random locations under uniaxial compression; in compression-compression fatigue, a single crush band forms and broadens with additional fatigue cycles. Progressive shortening of the specimen in compression-compression fatigue, and progressive lengthening in tension-tension fatigue are due to a combination of low cycle fatigue failure and cyclic ratchetting. S-N fatigue curves are presented for the onset of progressive shortening in the compression tests, and material separation in the tension tests; it is envisaged that such curves will be of practical use in design.

Authors:

Harte, A M; Fleck, N A; Ashby, M F ^[1]

Cambridge Univ. (United Kingdom). Engineering Dept.

Publication Date:: Tue Jun 22 00:00:00 EDT 1999

OSTI Identifier:: 6305945

Resource Type:: Journal Article

Journal Name:: Acta Materialia

Additional Journal Information:: Journal Volume: 47:8; Journal ID: ISSN 1359-6454

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; ALUMINIUM BASE ALLOYS; FATIGUE; FOAMS; FREQUENCY DEPENDENCE; S-N DIAGRAM; STRAINS; STRESSES; ALLOYS; ALUMINIUM ALLOYS; COLLOIDS; DIAGRAMS; DISPERSIONS; MECHANICAL PROPERTIES; 360103* - Metals & Alloys- Mechanical Properties

Citation Formats


                    Harte, A M, Fleck, N A, and Ashby, M F. Fatigue failure of an open cell and a closed cell aluminium alloy foam.  United States: N. p., 1999. 
        Web.  doi:10.1016/S1359-6454(99)00097-X.

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                    Harte, A M, Fleck, N A, & Ashby, M F. Fatigue failure of an open cell and a closed cell aluminium alloy foam.  United States.  https://doi.org/10.1016/S1359-6454(99)00097-X

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                    Harte, A M, Fleck, N A, and Ashby, M F. 1999.  
        "Fatigue failure of an open cell and a closed cell aluminium alloy foam".  United States.  https://doi.org/10.1016/S1359-6454(99)00097-X.

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@article{osti_6305945,

  title        = {Fatigue failure of an open cell and a closed cell aluminium alloy foam},

  author       = {Harte, A M and Fleck, N A and Ashby, M F},

  abstractNote = {The tension-tension and compression-compression cyclic properties are measured for an open cell Duocel foam of composition Al 6101-T6, and a closed cell Alporas foam of composition Al-5Ca-3Ti (wt%). the Duocel foam has a relatively uniform microstructure, and undergoes homogeneous straining in both monotonic and fatigue tests. In contrast, the Alporas foam is more irregular in microstructure, and exhibits crush-band formation at random locations under uniaxial compression; in compression-compression fatigue, a single crush band forms and broadens with additional fatigue cycles. Progressive shortening of the specimen in compression-compression fatigue, and progressive lengthening in tension-tension fatigue are due to a combination of low cycle fatigue failure and cyclic ratchetting. S-N fatigue curves are presented for the onset of progressive shortening in the compression tests, and material separation in the tension tests; it is envisaged that such curves will be of practical use in design.},

  doi          = {10.1016/S1359-6454(99)00097-X},

  url          = {https://www.osti.gov/biblio/6305945},
  journal      = {Acta Materialia},

  issn         = {1359-6454},

  number       = ,

  volume       = 47:8,

  place        = {United States},

  year         = {Tue Jun 22 00:00:00 EDT 1999},

  month        = {Tue Jun 22 00:00:00 EDT 1999}

}

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