Large deflections of composite circular springs with extended flat contract surfaces under unidirectional line-loading and surface-loading configurations,

Stephen R Reid, P. C. Tse, W. H. Wong, K. J. Lau

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Large deflections of a range of mid-surface-symmetric, woven composite circular springs with extended flat contact surfaces subject to unidirectional line and surface-loading configurations were studied experimentally and modelled numerically. Finite element analysis was employed to study the load-deflection and strain distribution characteristics. Eighteen woven fibre/epoxy composite circular springs covering a range of different radii and thicknesses were fabricated and tested. Comparison of the results obtained experimentally with the numerical models shows good agreement. The location of the zero-strain point on the spring was found to be related to the loading configuration and the semi-included angle of the composite spring. Correlation curves of the normalized ultimate load versus normalized geometrical parameters of the springs were established successfully. These curves can be used to predict the ultimate load according to the spring's geometry and mechanical properties. (C) 2003 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)253-260
Number of pages7
JournalComposites Part B: Engineering
Volume63
DOIs
Publication statusPublished - 2004

Keywords

  • composite springs
  • ultimate load
  • loading configuration

Cite this

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title = "Large deflections of composite circular springs with extended flat contract surfaces under unidirectional line-loading and surface-loading configurations,",
abstract = "Large deflections of a range of mid-surface-symmetric, woven composite circular springs with extended flat contact surfaces subject to unidirectional line and surface-loading configurations were studied experimentally and modelled numerically. Finite element analysis was employed to study the load-deflection and strain distribution characteristics. Eighteen woven fibre/epoxy composite circular springs covering a range of different radii and thicknesses were fabricated and tested. Comparison of the results obtained experimentally with the numerical models shows good agreement. The location of the zero-strain point on the spring was found to be related to the loading configuration and the semi-included angle of the composite spring. Correlation curves of the normalized ultimate load versus normalized geometrical parameters of the springs were established successfully. These curves can be used to predict the ultimate load according to the spring's geometry and mechanical properties. (C) 2003 Elsevier Ltd. All rights reserved.",
keywords = "composite springs, ultimate load, loading configuration",
author = "Reid, {Stephen R} and Tse, {P. C.} and Wong, {W. H.} and Lau, {K. J.}",
year = "2004",
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publisher = "Elsevier Limited",

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TY - JOUR

T1 - Large deflections of composite circular springs with extended flat contract surfaces under unidirectional line-loading and surface-loading configurations,

AU - Reid, Stephen R

AU - Tse, P. C.

AU - Wong, W. H.

AU - Lau, K. J.

PY - 2004

Y1 - 2004

N2 - Large deflections of a range of mid-surface-symmetric, woven composite circular springs with extended flat contact surfaces subject to unidirectional line and surface-loading configurations were studied experimentally and modelled numerically. Finite element analysis was employed to study the load-deflection and strain distribution characteristics. Eighteen woven fibre/epoxy composite circular springs covering a range of different radii and thicknesses were fabricated and tested. Comparison of the results obtained experimentally with the numerical models shows good agreement. The location of the zero-strain point on the spring was found to be related to the loading configuration and the semi-included angle of the composite spring. Correlation curves of the normalized ultimate load versus normalized geometrical parameters of the springs were established successfully. These curves can be used to predict the ultimate load according to the spring's geometry and mechanical properties. (C) 2003 Elsevier Ltd. All rights reserved.

AB - Large deflections of a range of mid-surface-symmetric, woven composite circular springs with extended flat contact surfaces subject to unidirectional line and surface-loading configurations were studied experimentally and modelled numerically. Finite element analysis was employed to study the load-deflection and strain distribution characteristics. Eighteen woven fibre/epoxy composite circular springs covering a range of different radii and thicknesses were fabricated and tested. Comparison of the results obtained experimentally with the numerical models shows good agreement. The location of the zero-strain point on the spring was found to be related to the loading configuration and the semi-included angle of the composite spring. Correlation curves of the normalized ultimate load versus normalized geometrical parameters of the springs were established successfully. These curves can be used to predict the ultimate load according to the spring's geometry and mechanical properties. (C) 2003 Elsevier Ltd. All rights reserved.

KW - composite springs

KW - ultimate load

KW - loading configuration

U2 - 10.1016/S0263-8223(03)00172-7

DO - 10.1016/S0263-8223(03)00172-7

M3 - Article

VL - 63

SP - 253

EP - 260

JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

SN - 1359-8368

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