Debonding of short fibres among particulates in a metal matrix composite

Viggo Tvergaard

doi:10.1016/S0020-7683(03)00347-0

Debonding of short fibres among particulates in a metal matrix composite

Viggo Tvergaard

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

A numerical analysis is carried out for the development of damage by fibre-matrix debonding in aluminium reinforced by aligned, short SiC fibres. A unit cell-model that has earlier been applied to study materials with arrays of transversely staggered fibres is here extended to contain a number of differently shaped fibres or particulates in each unit cell. thus representing debonding of a relatively long discontinuous fibre among particulates that do not debond. Interfacial failure is modelled in terms of a cohesive zone model that accounts for decohesion by normal separation as well as by tangential separation. It is found that the evolution of failure can depend rather strongly on the distribution of particulates around a fibre subject to debonding. (C) 2003 Elsevier Ltd. All rights reserved.

Original language	English
Journal	Int. J. Solids Structures
Volume	40
Issue number	25
Pages (from-to)	6957-6967
ISSN	0020-7683
DOIs	https://doi.org/10.1016/S0020-7683(03)00347-0
Publication status	Published - Dec 2003
Event	14th US National Congress of Theoretical and Applied Mechanics - Blacksburg, United States Duration: 23 Jun 2002 → 28 Jun 2002 Conference number: 14

Conference

Conference	14th US National Congress of Theoretical and Applied Mechanics
Number	14
Country/Territory	United States
City	Blacksburg
Period	23/06/2002 → 28/06/2002

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title = "Debonding of short fibres among particulates in a metal matrix composite",

abstract = "A numerical analysis is carried out for the development of damage by fibre-matrix debonding in aluminium reinforced by aligned, short SiC fibres. A unit cell-model that has earlier been applied to study materials with arrays of transversely staggered fibres is here extended to contain a number of differently shaped fibres or particulates in each unit cell. thus representing debonding of a relatively long discontinuous fibre among particulates that do not debond. Interfacial failure is modelled in terms of a cohesive zone model that accounts for decohesion by normal separation as well as by tangential separation. It is found that the evolution of failure can depend rather strongly on the distribution of particulates around a fibre subject to debonding. (C) 2003 Elsevier Ltd. All rights reserved. ",

author = "Viggo Tvergaard",

year = "2003",

month = dec,

doi = "10.1016/S0020-7683(03)00347-0",

language = "English",

volume = "40",

pages = "6957--6967",

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AU - Tvergaard, Viggo

N1 - Conference code: 14

PY - 2003/12

Y1 - 2003/12

N2 - A numerical analysis is carried out for the development of damage by fibre-matrix debonding in aluminium reinforced by aligned, short SiC fibres. A unit cell-model that has earlier been applied to study materials with arrays of transversely staggered fibres is here extended to contain a number of differently shaped fibres or particulates in each unit cell. thus representing debonding of a relatively long discontinuous fibre among particulates that do not debond. Interfacial failure is modelled in terms of a cohesive zone model that accounts for decohesion by normal separation as well as by tangential separation. It is found that the evolution of failure can depend rather strongly on the distribution of particulates around a fibre subject to debonding. (C) 2003 Elsevier Ltd. All rights reserved.

AB - A numerical analysis is carried out for the development of damage by fibre-matrix debonding in aluminium reinforced by aligned, short SiC fibres. A unit cell-model that has earlier been applied to study materials with arrays of transversely staggered fibres is here extended to contain a number of differently shaped fibres or particulates in each unit cell. thus representing debonding of a relatively long discontinuous fibre among particulates that do not debond. Interfacial failure is modelled in terms of a cohesive zone model that accounts for decohesion by normal separation as well as by tangential separation. It is found that the evolution of failure can depend rather strongly on the distribution of particulates around a fibre subject to debonding. (C) 2003 Elsevier Ltd. All rights reserved.

U2 - 10.1016/S0020-7683(03)00347-0

DO - 10.1016/S0020-7683(03)00347-0

M3 - Conference article

SN - 0020-7683

VL - 40

SP - 6957

EP - 6967

JO - Int. J. Solids Structures

JF - Int. J. Solids Structures

IS - 25

T2 - 14th US National Congress of Theoretical and Applied Mechanics

Y2 - 23 June 2002 through 28 June 2002

ER -

Debonding of short fibres among particulates in a metal matrix composite

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