A Modified TSD Specimen for Fracture Toughness Characterization – Fracture Mechanics Analysis and Design

Christian Berggreen, Leif A. Carlsson

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

The tilted sandwich debond (TSD) specimen has been recognized as a viable candidate for characterization of the face/core fracture resistance. Analysis, however, shows that the range of phase angles that can be realized by altering the tilt angle and other parameters of the test is quite limited. A method to extend the range of mode-mixities of the TSD specimen is to introduce a larger amount of transverse shear by reinforcing the loaded upper face with a stiff metal plate. Analysis shows that this method extends the range of phase angles to a practically useful range. Guidelines on selection of thicknesses of the reinforcement, and design considerations for further modifications are provided.
Original languageEnglish
JournalJournal of Composite Materials
Volume44
Issue number15
Pages (from-to)1893-1912
ISSN0021-9983
DOIs
Publication statusPublished - 2010

Keywords

  • Fracture mechanics
  • Interfaces
  • Mxed mode loading
  • Sandwich structures

Cite this

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title = "A Modified TSD Specimen for Fracture Toughness Characterization – Fracture Mechanics Analysis and Design",
abstract = "The tilted sandwich debond (TSD) specimen has been recognized as a viable candidate for characterization of the face/core fracture resistance. Analysis, however, shows that the range of phase angles that can be realized by altering the tilt angle and other parameters of the test is quite limited. A method to extend the range of mode-mixities of the TSD specimen is to introduce a larger amount of transverse shear by reinforcing the loaded upper face with a stiff metal plate. Analysis shows that this method extends the range of phase angles to a practically useful range. Guidelines on selection of thicknesses of the reinforcement, and design considerations for further modifications are provided.",
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A Modified TSD Specimen for Fracture Toughness Characterization – Fracture Mechanics Analysis and Design. / Berggreen, Christian; Carlsson, Leif A.

In: Journal of Composite Materials, Vol. 44, No. 15, 2010, p. 1893-1912.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - A Modified TSD Specimen for Fracture Toughness Characterization – Fracture Mechanics Analysis and Design

AU - Berggreen, Christian

AU - Carlsson, Leif A.

PY - 2010

Y1 - 2010

N2 - The tilted sandwich debond (TSD) specimen has been recognized as a viable candidate for characterization of the face/core fracture resistance. Analysis, however, shows that the range of phase angles that can be realized by altering the tilt angle and other parameters of the test is quite limited. A method to extend the range of mode-mixities of the TSD specimen is to introduce a larger amount of transverse shear by reinforcing the loaded upper face with a stiff metal plate. Analysis shows that this method extends the range of phase angles to a practically useful range. Guidelines on selection of thicknesses of the reinforcement, and design considerations for further modifications are provided.

AB - The tilted sandwich debond (TSD) specimen has been recognized as a viable candidate for characterization of the face/core fracture resistance. Analysis, however, shows that the range of phase angles that can be realized by altering the tilt angle and other parameters of the test is quite limited. A method to extend the range of mode-mixities of the TSD specimen is to introduce a larger amount of transverse shear by reinforcing the loaded upper face with a stiff metal plate. Analysis shows that this method extends the range of phase angles to a practically useful range. Guidelines on selection of thicknesses of the reinforcement, and design considerations for further modifications are provided.

KW - Fracture mechanics

KW - Interfaces

KW - Mxed mode loading

KW - Sandwich structures

U2 - 10.1177/0021998309360937

DO - 10.1177/0021998309360937

M3 - Journal article

VL - 44

SP - 1893

EP - 1912

JO - Journal of Composite Materials

JF - Journal of Composite Materials

SN - 0021-9983

IS - 15

ER -