FEA of crack-particle interactions during delamination in interlayer toughened polymer composites

Dejan Stevanovic; S. Kalyanasundaram; A. Lowe; P. Y.B. Jar

doi:10.1016/j.engfracmech.2004.12.004

FEA of crack-particle interactions during delamination in interlayer toughened polymer composites

Dejan Stevanovic^*, S. Kalyanasundaram, A. Lowe, P. Y.B. Jar

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

A numerical analysis was conducted, using previously obtained experimental results, to establish basic toughening mechanisms and fracture behaviour of an interlayer-toughened composite material, containing particulate modified interlayers. Aims of the analysis were to examine the influence of the particles on the plastic zone size that develops in front of the crack tip and to investigate interactions between the particles and the crack tip during elastic-plastic crack propagation. Under both loading modes particles did not promote yielding but induced micro-cracking. This was concluded to be the most dominant toughening mechanism within high particle content interlayers.

Original language	English
Pages (from-to)	1738-1769
Number of pages	32
Journal	Engineering Fracture Mechanics
Volume	72
Issue number	11
DOIs	https://doi.org/10.1016/j.engfracmech.2004.12.004
Publication status	Published - Jul 2005

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10.1016/j.engfracmech.2004.12.004

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title = "FEA of crack-particle interactions during delamination in interlayer toughened polymer composites",

abstract = "A numerical analysis was conducted, using previously obtained experimental results, to establish basic toughening mechanisms and fracture behaviour of an interlayer-toughened composite material, containing particulate modified interlayers. Aims of the analysis were to examine the influence of the particles on the plastic zone size that develops in front of the crack tip and to investigate interactions between the particles and the crack tip during elastic-plastic crack propagation. Under both loading modes particles did not promote yielding but induced micro-cracking. This was concluded to be the most dominant toughening mechanism within high particle content interlayers.",

keywords = "Crack-particle interactions, Finite element analysis, Fracture toughness",

author = "Dejan Stevanovic and S. Kalyanasundaram and A. Lowe and Jar, {P. Y.B.}",

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AU - Stevanovic, Dejan

AU - Kalyanasundaram, S.

AU - Lowe, A.

AU - Jar, P. Y.B.

PY - 2005/7

Y1 - 2005/7

N2 - A numerical analysis was conducted, using previously obtained experimental results, to establish basic toughening mechanisms and fracture behaviour of an interlayer-toughened composite material, containing particulate modified interlayers. Aims of the analysis were to examine the influence of the particles on the plastic zone size that develops in front of the crack tip and to investigate interactions between the particles and the crack tip during elastic-plastic crack propagation. Under both loading modes particles did not promote yielding but induced micro-cracking. This was concluded to be the most dominant toughening mechanism within high particle content interlayers.

AB - A numerical analysis was conducted, using previously obtained experimental results, to establish basic toughening mechanisms and fracture behaviour of an interlayer-toughened composite material, containing particulate modified interlayers. Aims of the analysis were to examine the influence of the particles on the plastic zone size that develops in front of the crack tip and to investigate interactions between the particles and the crack tip during elastic-plastic crack propagation. Under both loading modes particles did not promote yielding but induced micro-cracking. This was concluded to be the most dominant toughening mechanism within high particle content interlayers.

KW - Crack-particle interactions

KW - Finite element analysis

KW - Fracture toughness

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DO - 10.1016/j.engfracmech.2004.12.004

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SP - 1738

EP - 1769

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

IS - 11

ER -

FEA of crack-particle interactions during delamination in interlayer toughened polymer composites

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