Effect of cyclic plasticity on internal stresses in a metal matrix composite

M. R. Daymond; M. E. Fitzpatrick

doi:10.1007/s11661-006-0140-9

Effect of cyclic plasticity on internal stresses in a metal matrix composite

M. R. Daymond
, M. E. Fitzpatrick

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

19 Citations (Scopus)

Abstract

Neutron diffraction has been used to measure the elastic strains in a silicon carbide particle-reinforced aluminum alloy during cyclic plasticity. Strains were recorded in both phases of the material, in sufficient directions to allow for calculation of the internal stresses. The shape misfit stress in the composite was calculated from the macroscopic stress data using an Eshelby-based model. Changes in the misfit stress caused by plastic deformation can be clearly observed. Local plastic anisotropy of the matrix material is also seen and was monitored by comparing results from the two diffraction planes, {111} and {200}, that were measured. The results have been compared to those obtained using an elasto-plastic self-consistent modeling approach, which shows the evolution of load sharing between the matrix and reinforcement, as well as the origin of the plastic anisotropy strains in the aluminum.

Original language	English
Pages (from-to)	1977-1986
Number of pages	10
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	37
Issue number	6
DOIs	https://doi.org/10.1007/s11661-006-0140-9
Publication status	Published - 1 Jan 2006
Externally published	Yes

Funding

The authors thank Dr. T. Lorentzen for his help with the neutron experiments and AMC Ltd. for the provision of material. Funding for the beam time was provided by the Commission of the European Community through the TMR Large Installation Plan. M.R.D. carried out the experimental work while employed at the ISIS Facility, Rutherford Appleton Labs, U.K.

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys

Access to Document

10.1007/s11661-006-0140-9

Cite this

@article{1c75881e167c465787f480871ea8c9cb,

title = "Effect of cyclic plasticity on internal stresses in a metal matrix composite",

abstract = "Neutron diffraction has been used to measure the elastic strains in a silicon carbide particle-reinforced aluminum alloy during cyclic plasticity. Strains were recorded in both phases of the material, in sufficient directions to allow for calculation of the internal stresses. The shape misfit stress in the composite was calculated from the macroscopic stress data using an Eshelby-based model. Changes in the misfit stress caused by plastic deformation can be clearly observed. Local plastic anisotropy of the matrix material is also seen and was monitored by comparing results from the two diffraction planes, \{111\} and \{200\}, that were measured. The results have been compared to those obtained using an elasto-plastic self-consistent modeling approach, which shows the evolution of load sharing between the matrix and reinforcement, as well as the origin of the plastic anisotropy strains in the aluminum.",

author = "Daymond, \{M. R.\} and Fitzpatrick, \{M. E.\}",

year = "2006",

month = jan,

day = "1",

doi = "10.1007/s11661-006-0140-9",

language = "English",

volume = "37",

pages = "1977--1986",

journal = "Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science",

issn = "1073-5623",

publisher = "ASM International",

number = "6",

}

TY - JOUR

T1 - Effect of cyclic plasticity on internal stresses in a metal matrix composite

AU - Daymond, M. R.

AU - Fitzpatrick, M. E.

PY - 2006/1/1

Y1 - 2006/1/1

N2 - Neutron diffraction has been used to measure the elastic strains in a silicon carbide particle-reinforced aluminum alloy during cyclic plasticity. Strains were recorded in both phases of the material, in sufficient directions to allow for calculation of the internal stresses. The shape misfit stress in the composite was calculated from the macroscopic stress data using an Eshelby-based model. Changes in the misfit stress caused by plastic deformation can be clearly observed. Local plastic anisotropy of the matrix material is also seen and was monitored by comparing results from the two diffraction planes, {111} and {200}, that were measured. The results have been compared to those obtained using an elasto-plastic self-consistent modeling approach, which shows the evolution of load sharing between the matrix and reinforcement, as well as the origin of the plastic anisotropy strains in the aluminum.

AB - Neutron diffraction has been used to measure the elastic strains in a silicon carbide particle-reinforced aluminum alloy during cyclic plasticity. Strains were recorded in both phases of the material, in sufficient directions to allow for calculation of the internal stresses. The shape misfit stress in the composite was calculated from the macroscopic stress data using an Eshelby-based model. Changes in the misfit stress caused by plastic deformation can be clearly observed. Local plastic anisotropy of the matrix material is also seen and was monitored by comparing results from the two diffraction planes, {111} and {200}, that were measured. The results have been compared to those obtained using an elasto-plastic self-consistent modeling approach, which shows the evolution of load sharing between the matrix and reinforcement, as well as the origin of the plastic anisotropy strains in the aluminum.

UR - https://www.scopus.com/pages/publications/33745272839

U2 - 10.1007/s11661-006-0140-9

DO - 10.1007/s11661-006-0140-9

M3 - Article

AN - SCOPUS:33745272839

SN - 1073-5623

VL - 37

SP - 1977

EP - 1986

JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

IS - 6

ER -

Effect of cyclic plasticity on internal stresses in a metal matrix composite

Abstract

Funding

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this