Strain evolution after fiber failure in a single-fiber metal matrix composite under cyclic loading

Jay C. Hanan; Sivasambu Mahesh; Ersan Üstündag; Irene J. Beyerlein; Geoffrey A. Swift; Bjørn Clausen; Donald W. Brown; Mark A.M. Bourke

doi:10.1016/j.msea.2005.02.018

Strain evolution after fiber failure in a single-fiber metal matrix composite under cyclic loading

Jay C. Hanan^*, Sivasambu Mahesh, Ersan Üstündag, Irene J. Beyerlein, Geoffrey A. Swift, Bjørn Clausen, Donald W. Brown, Mark A.M. Bourke

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The evolution of in situ elastic strain with cyclic tensile loading in each phase of a single Al₂O₃-fiber/aluminum-matrix composite was studied using neutron diffraction (ND). An analytical model appropriate for metal matrix composites (MMCs) was developed to connect the measured axial strain evolution in each phase with the possible micromechanical events that could occur during loading at room temperature: fiber fracture, interfacial slipping, and matrix plastic deformation. Model interpretation showed that the elastic strain evolution in the fiber and matrix was governed by fiber fracture and interface slipping and not by plastic deformation of the matrix, whereas the macroscopic stress-strain response of the composite was influenced by all three. The combined single-fiber composite model and ND experiment introduces a new and quick engineering approach for qualifying the micromechanical response in MMCs due to cyclic loading and fiber fracture.

Original language	English
Pages (from-to)	33-42
Number of pages	10
Journal	Materials Science and Engineering: A
Volume	399
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2005.02.018
Publication status	Published - 15 Jun 2005
Externally published	Yes

Funding

Funding was provided by the National Science Foundation (CAREER grant no. DMR-9985264) at Caltech and a Laboratory-Directed Research and Development Project (no. 2000043) at Los Alamos. The neutron diffraction experiments were conducted at the Lujan Center, LANSCE, a national user facility supported by the Department of Energy, Office of Basic Energy Sciences under contract W-7405-ENG-36. Dr. C. Brian Hooper assisted with the radiographic measurements.

Funders	Funder number
Laboratory-Directed Research and Development Project	2000043
Los Alamos
National Science Foundation	DMR-9985264
U.S. Department of Energy
Basic Energy Sciences	W-7405-ENG-36

Keywords

Composite deformation
Fiber failure
Interface shear
Metal matrix composites
Micromechanical events
Neutron diffraction

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10.1016/j.msea.2005.02.018

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@article{20a09a5106624e47a25a395f494201db,

title = "Strain evolution after fiber failure in a single-fiber metal matrix composite under cyclic loading",

abstract = "The evolution of in situ elastic strain with cyclic tensile loading in each phase of a single Al2O3-fiber/aluminum-matrix composite was studied using neutron diffraction (ND). An analytical model appropriate for metal matrix composites (MMCs) was developed to connect the measured axial strain evolution in each phase with the possible micromechanical events that could occur during loading at room temperature: fiber fracture, interfacial slipping, and matrix plastic deformation. Model interpretation showed that the elastic strain evolution in the fiber and matrix was governed by fiber fracture and interface slipping and not by plastic deformation of the matrix, whereas the macroscopic stress-strain response of the composite was influenced by all three. The combined single-fiber composite model and ND experiment introduces a new and quick engineering approach for qualifying the micromechanical response in MMCs due to cyclic loading and fiber fracture.",

keywords = "Composite deformation, Fiber failure, Interface shear, Metal matrix composites, Micromechanical events, Neutron diffraction",

author = "Hanan, \{Jay C.\} and Sivasambu Mahesh and Ersan {\"U}st{\"u}ndag and Beyerlein, \{Irene J.\} and Swift, \{Geoffrey A.\} and Bj{\o}rn Clausen and Brown, \{Donald W.\} and Bourke, \{Mark A.M.\}",

year = "2005",

month = jun,

day = "15",

doi = "10.1016/j.msea.2005.02.018",

language = "English",

volume = "399",

pages = "33--42",

journal = "Materials Science and Engineering: A",

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T1 - Strain evolution after fiber failure in a single-fiber metal matrix composite under cyclic loading

AU - Hanan, Jay C.

AU - Mahesh, Sivasambu

AU - Üstündag, Ersan

AU - Beyerlein, Irene J.

AU - Swift, Geoffrey A.

AU - Clausen, Bjørn

AU - Brown, Donald W.

AU - Bourke, Mark A.M.

PY - 2005/6/15

Y1 - 2005/6/15

N2 - The evolution of in situ elastic strain with cyclic tensile loading in each phase of a single Al2O3-fiber/aluminum-matrix composite was studied using neutron diffraction (ND). An analytical model appropriate for metal matrix composites (MMCs) was developed to connect the measured axial strain evolution in each phase with the possible micromechanical events that could occur during loading at room temperature: fiber fracture, interfacial slipping, and matrix plastic deformation. Model interpretation showed that the elastic strain evolution in the fiber and matrix was governed by fiber fracture and interface slipping and not by plastic deformation of the matrix, whereas the macroscopic stress-strain response of the composite was influenced by all three. The combined single-fiber composite model and ND experiment introduces a new and quick engineering approach for qualifying the micromechanical response in MMCs due to cyclic loading and fiber fracture.

AB - The evolution of in situ elastic strain with cyclic tensile loading in each phase of a single Al2O3-fiber/aluminum-matrix composite was studied using neutron diffraction (ND). An analytical model appropriate for metal matrix composites (MMCs) was developed to connect the measured axial strain evolution in each phase with the possible micromechanical events that could occur during loading at room temperature: fiber fracture, interfacial slipping, and matrix plastic deformation. Model interpretation showed that the elastic strain evolution in the fiber and matrix was governed by fiber fracture and interface slipping and not by plastic deformation of the matrix, whereas the macroscopic stress-strain response of the composite was influenced by all three. The combined single-fiber composite model and ND experiment introduces a new and quick engineering approach for qualifying the micromechanical response in MMCs due to cyclic loading and fiber fracture.

KW - Composite deformation

KW - Fiber failure

KW - Interface shear

KW - Metal matrix composites

KW - Micromechanical events

KW - Neutron diffraction

UR - https://www.scopus.com/pages/publications/23444446888

U2 - 10.1016/j.msea.2005.02.018

DO - 10.1016/j.msea.2005.02.018

M3 - Article

AN - SCOPUS:23444446888

SN - 0921-5093

VL - 399

SP - 33

EP - 42

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - 1-2

ER -

Strain evolution after fiber failure in a single-fiber metal matrix composite under cyclic loading

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Keywords

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