Failure of sandwich beams

E. E. Gdoutos; Isaac M Daniel

Failure of sandwich beams

E. E. Gdoutos^*, Isaac M Daniel

^*Corresponding author for this work

Civil and Environmental Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

An investigation was conducted on failure of composite sandwich beams under threepoint bending and in cantilever beams under end loading. The beams consisted of unidirectional carbon/epoxy facings and a variety of core materials, including aluminum honeycomb, PVC closedcell foams, polyurethane foam and balsa wood. The constituent materials were fully characterized and in the case of the core materials, failure envelopes were developed for biaxial states of stress. Deformation and failure mechanisms include core shear failure and compression facing wrinkling. Results were obtained for stress (strain) distributions in the linear and nonlinear/plastic range of the core, critical failure loads due to shear core failure and compression facing wrinkling and their dependence on geometrical dimensions, material parameters and loading conditions.

Original language	English (US)
Title of host publication	17th European Conference on Fracture 2008
Subtitle of host publication	Multilevel Approach to Fracture of Materials, Components and Structures
Pages	2097-2104
Number of pages	8
Volume	3
State	Published - Dec 1 2008
Event	17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, ECF17 - Brno, Czech Republic Duration: Sep 2 2008 → Sep 5 2008

Other

Other	17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, ECF17
Country	Czech Republic
City	Brno
Period	9/2/08 → 9/5/08

Keywords

Birefringent coatings
Cantilever beams
Failure modes
Moiré
Sandwich beams
Three-point bending

ASJC Scopus subject areas

Civil and Structural Engineering

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title = "Failure of sandwich beams",

abstract = "An investigation was conducted on failure of composite sandwich beams under threepoint bending and in cantilever beams under end loading. The beams consisted of unidirectional carbon/epoxy facings and a variety of core materials, including aluminum honeycomb, PVC closedcell foams, polyurethane foam and balsa wood. The constituent materials were fully characterized and in the case of the core materials, failure envelopes were developed for biaxial states of stress. Deformation and failure mechanisms include core shear failure and compression facing wrinkling. Results were obtained for stress (strain) distributions in the linear and nonlinear/plastic range of the core, critical failure loads due to shear core failure and compression facing wrinkling and their dependence on geometrical dimensions, material parameters and loading conditions.",

keywords = "Birefringent coatings, Cantilever beams, Failure modes, Moir{\'e}, Sandwich beams, Three-point bending",

author = "Gdoutos, {E. E.} and Daniel, {Isaac M}",

year = "2008",

month = dec,

day = "1",

language = "English (US)",

isbn = "9781617823190",

volume = "3",

pages = "2097--2104",

booktitle = "17th European Conference on Fracture 2008",

note = "17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, ECF17 ; Conference date: 02-09-2008 Through 05-09-2008",

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T1 - Failure of sandwich beams

AU - Gdoutos, E. E.

AU - Daniel, Isaac M

PY - 2008/12/1

Y1 - 2008/12/1

N2 - An investigation was conducted on failure of composite sandwich beams under threepoint bending and in cantilever beams under end loading. The beams consisted of unidirectional carbon/epoxy facings and a variety of core materials, including aluminum honeycomb, PVC closedcell foams, polyurethane foam and balsa wood. The constituent materials were fully characterized and in the case of the core materials, failure envelopes were developed for biaxial states of stress. Deformation and failure mechanisms include core shear failure and compression facing wrinkling. Results were obtained for stress (strain) distributions in the linear and nonlinear/plastic range of the core, critical failure loads due to shear core failure and compression facing wrinkling and their dependence on geometrical dimensions, material parameters and loading conditions.

AB - An investigation was conducted on failure of composite sandwich beams under threepoint bending and in cantilever beams under end loading. The beams consisted of unidirectional carbon/epoxy facings and a variety of core materials, including aluminum honeycomb, PVC closedcell foams, polyurethane foam and balsa wood. The constituent materials were fully characterized and in the case of the core materials, failure envelopes were developed for biaxial states of stress. Deformation and failure mechanisms include core shear failure and compression facing wrinkling. Results were obtained for stress (strain) distributions in the linear and nonlinear/plastic range of the core, critical failure loads due to shear core failure and compression facing wrinkling and their dependence on geometrical dimensions, material parameters and loading conditions.

KW - Birefringent coatings

KW - Cantilever beams

KW - Failure modes

KW - Moiré

KW - Sandwich beams

KW - Three-point bending

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M3 - Conference contribution

AN - SCOPUS:84866082946

SN - 9781617823190

VL - 3

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BT - 17th European Conference on Fracture 2008

T2 - 17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, ECF17

Y2 - 2 September 2008 through 5 September 2008

ER -