Three-dimensional crack surface evolution in mode III delamination toughness tests

Allison L. Horner; Michael W. Czabaj; Barry D. Davidson; James G. Ratcliffe

doi:10.1016/j.engfracmech.2015.07.013

Three-dimensional crack surface evolution in mode III delamination toughness tests

Allison L. Horner, Michael W. Czabaj, Barry D. Davidson, James G. Ratcliffe

Department of Mechanical & Aerospace Engineering

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

11 Scopus citations

Abstract

The three-dimensional evolution of a delamination and multiple coupled transverse cracks is studied in laminated tape composites using different mode III tests and specimens. All combinations produce 45° transverse cracks that initiate at the delamination front prior to delamination advance. For unidirectional laminates, the transverse crack length is governed by thickness, whereas for multidirectional laminates the transverse crack length is controlled by the ply angle and stacking sequence. These and other details of laminate architecture are shown to dictate the crack surface evolution, and provide distinguishing characteristics between the different laminates tested as well as in comparison to homogenous materials.

Original language	English (US)
Pages (from-to)	313-325
Number of pages	13
Journal	Engineering Fracture Mechanics
Volume	149
DOIs	https://doi.org/10.1016/j.engfracmech.2015.07.013
State	Published - Nov 1 2015

Keywords

Composites
Crack growth
Fractography
Fracture mechanics
Toughness testing

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1016/j.engfracmech.2015.07.013

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title = "Three-dimensional crack surface evolution in mode III delamination toughness tests",

abstract = "The three-dimensional evolution of a delamination and multiple coupled transverse cracks is studied in laminated tape composites using different mode III tests and specimens. All combinations produce 45° transverse cracks that initiate at the delamination front prior to delamination advance. For unidirectional laminates, the transverse crack length is governed by thickness, whereas for multidirectional laminates the transverse crack length is controlled by the ply angle and stacking sequence. These and other details of laminate architecture are shown to dictate the crack surface evolution, and provide distinguishing characteristics between the different laminates tested as well as in comparison to homogenous materials.",

keywords = "Composites, Crack growth, Fractography, Fracture mechanics, Toughness testing",

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doi = "10.1016/j.engfracmech.2015.07.013",

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T1 - Three-dimensional crack surface evolution in mode III delamination toughness tests

AU - Horner, Allison L.

AU - Czabaj, Michael W.

AU - Davidson, Barry D.

AU - Ratcliffe, James G.

PY - 2015/11/1

Y1 - 2015/11/1

N2 - The three-dimensional evolution of a delamination and multiple coupled transverse cracks is studied in laminated tape composites using different mode III tests and specimens. All combinations produce 45° transverse cracks that initiate at the delamination front prior to delamination advance. For unidirectional laminates, the transverse crack length is governed by thickness, whereas for multidirectional laminates the transverse crack length is controlled by the ply angle and stacking sequence. These and other details of laminate architecture are shown to dictate the crack surface evolution, and provide distinguishing characteristics between the different laminates tested as well as in comparison to homogenous materials.

AB - The three-dimensional evolution of a delamination and multiple coupled transverse cracks is studied in laminated tape composites using different mode III tests and specimens. All combinations produce 45° transverse cracks that initiate at the delamination front prior to delamination advance. For unidirectional laminates, the transverse crack length is governed by thickness, whereas for multidirectional laminates the transverse crack length is controlled by the ply angle and stacking sequence. These and other details of laminate architecture are shown to dictate the crack surface evolution, and provide distinguishing characteristics between the different laminates tested as well as in comparison to homogenous materials.

KW - Composites

KW - Crack growth

KW - Fractography

KW - Fracture mechanics

KW - Toughness testing

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VL - 149

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JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

ER -

Three-dimensional crack surface evolution in mode III delamination toughness tests

Abstract

Keywords

ASJC Scopus subject areas

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