Environmental effects on thermally induced multistability in unsymmetric composite laminates

Julie Etches; Kevin Potter; Paul Weaver; Ian Bond

doi:10.1016/j.compositesa.2009.05.018

Environmental effects on thermally induced multistability in unsymmetric composite laminates

Julie Etches, Kevin Potter, Paul Weaver, Ian Bond

University of Bristol

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

Abstract

The principles involved in the generation of thermal induced multistability in carbon fibre epoxy laminates have received much interest in the published literature. This work examines the effects of moisture absorption on the mechanical properties of these plates focussing on geometry and 'snap-through' loadings. Samples were monitored from a dry state until moisture equilibrium was achieved. It was observed that substantial changes in geometry and snap-through performance occurred as moisture content increased. As part of this work, a first order strain energy analysis was modified to incorporate a hygrothermal strain term to enable prediction of the laminate shape due to moisture content.

Original language	English
Pages (from-to)	1240-1247
Number of pages	8
Journal	Composites Part A: Applied Science and Manufacturing
Volume	40
Issue number	8
DOIs	https://doi.org/10.1016/j.compositesa.2009.05.018
Publication status	Published - Aug 2009
Externally published	Yes

Keywords

A. PMCs
B. Environmental degradation
B. Residual/internal stress

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10.1016/j.compositesa.2009.05.018

Cite this

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title = "Environmental effects on thermally induced multistability in unsymmetric composite laminates",

abstract = "The principles involved in the generation of thermal induced multistability in carbon fibre epoxy laminates have received much interest in the published literature. This work examines the effects of moisture absorption on the mechanical properties of these plates focussing on geometry and 'snap-through' loadings. Samples were monitored from a dry state until moisture equilibrium was achieved. It was observed that substantial changes in geometry and snap-through performance occurred as moisture content increased. As part of this work, a first order strain energy analysis was modified to incorporate a hygrothermal strain term to enable prediction of the laminate shape due to moisture content.",

keywords = "A. PMCs, B. Environmental degradation, B. Residual/internal stress",

author = "Julie Etches and Kevin Potter and Paul Weaver and Ian Bond",

year = "2009",

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doi = "10.1016/j.compositesa.2009.05.018",

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T1 - Environmental effects on thermally induced multistability in unsymmetric composite laminates

AU - Etches, Julie

AU - Potter, Kevin

AU - Weaver, Paul

AU - Bond, Ian

PY - 2009/8

Y1 - 2009/8

N2 - The principles involved in the generation of thermal induced multistability in carbon fibre epoxy laminates have received much interest in the published literature. This work examines the effects of moisture absorption on the mechanical properties of these plates focussing on geometry and 'snap-through' loadings. Samples were monitored from a dry state until moisture equilibrium was achieved. It was observed that substantial changes in geometry and snap-through performance occurred as moisture content increased. As part of this work, a first order strain energy analysis was modified to incorporate a hygrothermal strain term to enable prediction of the laminate shape due to moisture content.

AB - The principles involved in the generation of thermal induced multistability in carbon fibre epoxy laminates have received much interest in the published literature. This work examines the effects of moisture absorption on the mechanical properties of these plates focussing on geometry and 'snap-through' loadings. Samples were monitored from a dry state until moisture equilibrium was achieved. It was observed that substantial changes in geometry and snap-through performance occurred as moisture content increased. As part of this work, a first order strain energy analysis was modified to incorporate a hygrothermal strain term to enable prediction of the laminate shape due to moisture content.

KW - A. PMCs

KW - B. Environmental degradation

KW - B. Residual/internal stress

UR - https://www.scopus.com/pages/publications/67651054983

U2 - 10.1016/j.compositesa.2009.05.018

DO - 10.1016/j.compositesa.2009.05.018

M3 - Article

AN - SCOPUS:67651054983

SN - 1359-835X

VL - 40

SP - 1240

EP - 1247

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

IS - 8

ER -

Environmental effects on thermally induced multistability in unsymmetric composite laminates

Abstract

Keywords

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