Combined in-plane and through-the-thickness analysis for failure prediction of bolted composite joints

V. Kradinov, Erdogan Madenci, D. R. Ambur

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Although two-dimensional methods provide accurate predictions of contact stresses and bolt load distribution in bolted composite joints with multiple bolts, they fail to capture the effect of thickness on the strength prediction. This study presents an analysis method to account for the variation of stresses in the thickness direction by augmenting a two-dimensional analysis with a one-dimensional through-the-thickness analysis. The two-dimensional in-plane solution method is based on the combined complex potential and variational formulation. The through-the-thickness analysis is based on the model utilizing a beam on an elastic foundation. The bolt, represented as a short beam while accounting for bending and shear deformations, rests on springs, where the spring coefficients represent the resistance of the composite laminate to bolt deformation. The combined in-plane and through-the-thickness analysis produces the bolt/hole displacement in the thickness direction, as well as the stress state in each ply. The initial ply failure predicted by applying the average stress criterion is followed by a simple progressive failure. Application of the model is demonstrated by considering single- and double-lap joints of metal plates bolted to composite laminates.

Original languageEnglish (US)
Pages (from-to)127-147
Number of pages21
JournalComposite Structures
Volume77
Issue number2
DOIs
StatePublished - Jan 2007

Fingerprint

Bolts
Composite materials
Laminates
Plate metal
Shear deformation
Loads (forces)
Direction compound

Keywords

  • Bolt
  • Failure
  • Laminate
  • Lap joints

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ceramics and Composites

Cite this

Combined in-plane and through-the-thickness analysis for failure prediction of bolted composite joints. / Kradinov, V.; Madenci, Erdogan; Ambur, D. R.

In: Composite Structures, Vol. 77, No. 2, 01.2007, p. 127-147.

Research output: Contribution to journalArticle

@article{2d24456ab2aa4010986748a3cec52434,
title = "Combined in-plane and through-the-thickness analysis for failure prediction of bolted composite joints",
abstract = "Although two-dimensional methods provide accurate predictions of contact stresses and bolt load distribution in bolted composite joints with multiple bolts, they fail to capture the effect of thickness on the strength prediction. This study presents an analysis method to account for the variation of stresses in the thickness direction by augmenting a two-dimensional analysis with a one-dimensional through-the-thickness analysis. The two-dimensional in-plane solution method is based on the combined complex potential and variational formulation. The through-the-thickness analysis is based on the model utilizing a beam on an elastic foundation. The bolt, represented as a short beam while accounting for bending and shear deformations, rests on springs, where the spring coefficients represent the resistance of the composite laminate to bolt deformation. The combined in-plane and through-the-thickness analysis produces the bolt/hole displacement in the thickness direction, as well as the stress state in each ply. The initial ply failure predicted by applying the average stress criterion is followed by a simple progressive failure. Application of the model is demonstrated by considering single- and double-lap joints of metal plates bolted to composite laminates.",
keywords = "Bolt, Failure, Laminate, Lap joints",
author = "V. Kradinov and Erdogan Madenci and Ambur, {D. R.}",
year = "2007",
month = "1",
doi = "10.1016/j.compstruct.2005.06.008",
language = "English (US)",
volume = "77",
pages = "127--147",
journal = "Composite Structures",
issn = "0263-8223",
publisher = "Elsevier BV",
number = "2",

}

TY - JOUR

T1 - Combined in-plane and through-the-thickness analysis for failure prediction of bolted composite joints

AU - Kradinov, V.

AU - Madenci, Erdogan

AU - Ambur, D. R.

PY - 2007/1

Y1 - 2007/1

N2 - Although two-dimensional methods provide accurate predictions of contact stresses and bolt load distribution in bolted composite joints with multiple bolts, they fail to capture the effect of thickness on the strength prediction. This study presents an analysis method to account for the variation of stresses in the thickness direction by augmenting a two-dimensional analysis with a one-dimensional through-the-thickness analysis. The two-dimensional in-plane solution method is based on the combined complex potential and variational formulation. The through-the-thickness analysis is based on the model utilizing a beam on an elastic foundation. The bolt, represented as a short beam while accounting for bending and shear deformations, rests on springs, where the spring coefficients represent the resistance of the composite laminate to bolt deformation. The combined in-plane and through-the-thickness analysis produces the bolt/hole displacement in the thickness direction, as well as the stress state in each ply. The initial ply failure predicted by applying the average stress criterion is followed by a simple progressive failure. Application of the model is demonstrated by considering single- and double-lap joints of metal plates bolted to composite laminates.

AB - Although two-dimensional methods provide accurate predictions of contact stresses and bolt load distribution in bolted composite joints with multiple bolts, they fail to capture the effect of thickness on the strength prediction. This study presents an analysis method to account for the variation of stresses in the thickness direction by augmenting a two-dimensional analysis with a one-dimensional through-the-thickness analysis. The two-dimensional in-plane solution method is based on the combined complex potential and variational formulation. The through-the-thickness analysis is based on the model utilizing a beam on an elastic foundation. The bolt, represented as a short beam while accounting for bending and shear deformations, rests on springs, where the spring coefficients represent the resistance of the composite laminate to bolt deformation. The combined in-plane and through-the-thickness analysis produces the bolt/hole displacement in the thickness direction, as well as the stress state in each ply. The initial ply failure predicted by applying the average stress criterion is followed by a simple progressive failure. Application of the model is demonstrated by considering single- and double-lap joints of metal plates bolted to composite laminates.

KW - Bolt

KW - Failure

KW - Laminate

KW - Lap joints

UR - http://www.scopus.com/inward/record.url?scp=33748777741&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33748777741&partnerID=8YFLogxK

U2 - 10.1016/j.compstruct.2005.06.008

DO - 10.1016/j.compstruct.2005.06.008

M3 - Article

AN - SCOPUS:33748777741

VL - 77

SP - 127

EP - 147

JO - Composite Structures

JF - Composite Structures

SN - 0263-8223

IS - 2

ER -