Bio-inspired laminate design exhibiting pseudo-ductile (graceful) failure during flexural loading

Robert Malkin, Mehdi Yasaee, Richard S. Trask, Ian P. Bond

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Discontinuous reinforcement phases are often observed in high toughness natural materials, for example, nacre. The aim of this study is to introduce a degree of 'pseudo-ductility' to fibre reinforced polymer materials by exploiting such discontinuities. The work presented aims to take a simple concept of discrete material sections and apply it in the form of ply cuts in a carbon fibre reinforced polymer. A variety of specimen types which encompass the principles inspired by the architecture of nacre were tested in four point bend flexure and the failure processes investigated. Finite element analysis was also carried out to understand stress conditions around ply cuts and their role in the observed failure. It was observed that ply cut spacing and ply cut density were important parameters in achieving 'pseudo-ductile' failure.

Original languageEnglish
Pages (from-to)107-116
Number of pages10
JournalComposites Part A - Applied Science and Manufacturing
Volume54
DOIs
Publication statusPublished - Nov 2013

Fingerprint

Nacre
Laminates
Polymers
Toughness
Carbon fibers
Ductility
Reinforcement
Finite element method
Fibers

Keywords

  • A. Carbon fibre
  • A. Laminates
  • B. Damage tolerance
  • B. Stress concentrations

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials

Cite this

Bio-inspired laminate design exhibiting pseudo-ductile (graceful) failure during flexural loading. / Malkin, Robert; Yasaee, Mehdi; Trask, Richard S.; Bond, Ian P.

In: Composites Part A - Applied Science and Manufacturing, Vol. 54, 11.2013, p. 107-116.

Research output: Contribution to journalArticle

Malkin, Robert ; Yasaee, Mehdi ; Trask, Richard S. ; Bond, Ian P. / Bio-inspired laminate design exhibiting pseudo-ductile (graceful) failure during flexural loading. In: Composites Part A - Applied Science and Manufacturing. 2013 ; Vol. 54. pp. 107-116.
@article{c51c3b08cdf140cab11c72edc8b51898,
title = "Bio-inspired laminate design exhibiting pseudo-ductile (graceful) failure during flexural loading",
abstract = "Discontinuous reinforcement phases are often observed in high toughness natural materials, for example, nacre. The aim of this study is to introduce a degree of 'pseudo-ductility' to fibre reinforced polymer materials by exploiting such discontinuities. The work presented aims to take a simple concept of discrete material sections and apply it in the form of ply cuts in a carbon fibre reinforced polymer. A variety of specimen types which encompass the principles inspired by the architecture of nacre were tested in four point bend flexure and the failure processes investigated. Finite element analysis was also carried out to understand stress conditions around ply cuts and their role in the observed failure. It was observed that ply cut spacing and ply cut density were important parameters in achieving 'pseudo-ductile' failure.",
keywords = "A. Carbon fibre, A. Laminates, B. Damage tolerance, B. Stress concentrations",
author = "Robert Malkin and Mehdi Yasaee and Trask, {Richard S.} and Bond, {Ian P.}",
year = "2013",
month = "11",
doi = "10.1016/j.compositesa.2013.07.008",
language = "English",
volume = "54",
pages = "107--116",
journal = "Composites Part A - Applied Science and Manufacturing",
issn = "1359-835X",
publisher = "Pergamon/Elsevier Science",

}

TY - JOUR

T1 - Bio-inspired laminate design exhibiting pseudo-ductile (graceful) failure during flexural loading

AU - Malkin, Robert

AU - Yasaee, Mehdi

AU - Trask, Richard S.

AU - Bond, Ian P.

PY - 2013/11

Y1 - 2013/11

N2 - Discontinuous reinforcement phases are often observed in high toughness natural materials, for example, nacre. The aim of this study is to introduce a degree of 'pseudo-ductility' to fibre reinforced polymer materials by exploiting such discontinuities. The work presented aims to take a simple concept of discrete material sections and apply it in the form of ply cuts in a carbon fibre reinforced polymer. A variety of specimen types which encompass the principles inspired by the architecture of nacre were tested in four point bend flexure and the failure processes investigated. Finite element analysis was also carried out to understand stress conditions around ply cuts and their role in the observed failure. It was observed that ply cut spacing and ply cut density were important parameters in achieving 'pseudo-ductile' failure.

AB - Discontinuous reinforcement phases are often observed in high toughness natural materials, for example, nacre. The aim of this study is to introduce a degree of 'pseudo-ductility' to fibre reinforced polymer materials by exploiting such discontinuities. The work presented aims to take a simple concept of discrete material sections and apply it in the form of ply cuts in a carbon fibre reinforced polymer. A variety of specimen types which encompass the principles inspired by the architecture of nacre were tested in four point bend flexure and the failure processes investigated. Finite element analysis was also carried out to understand stress conditions around ply cuts and their role in the observed failure. It was observed that ply cut spacing and ply cut density were important parameters in achieving 'pseudo-ductile' failure.

KW - A. Carbon fibre

KW - A. Laminates

KW - B. Damage tolerance

KW - B. Stress concentrations

UR - http://www.scopus.com/inward/record.url?scp=84882275543&partnerID=8YFLogxK

UR - http://dx.doi.org/10.1016/j.compositesa.2013.07.008

U2 - 10.1016/j.compositesa.2013.07.008

DO - 10.1016/j.compositesa.2013.07.008

M3 - Article

VL - 54

SP - 107

EP - 116

JO - Composites Part A - Applied Science and Manufacturing

JF - Composites Part A - Applied Science and Manufacturing

SN - 1359-835X

ER -