Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate

Heikki Keinänen, Tero Uuttu, Mikko Lehtonen

Research output: Book/ReportReportProfessional

Abstract

In this work fracture mechanics and experimental mechanics approaches were used to characterize mode-II interlaminar fracture of a glass-fibre reinforced epoxy (GRFP) laminate. Mode-II interlaminar fracture toughness was characterized by using the end-notched flexure (ENF) test. The ENF-specimen was modelled by using both analytical (beam theory) and numerical (finite-element method) approaches. Calculated results were compared to experimental ones and the interlaminar mode-II fracture toughness of the particular laminate was determined. In the particular case the ENF-test is suitable for characterization the interlaminar fracture toughness.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages33
ISBN (Print)951-38-4223-1
Publication statusPublished - 1992
MoE publication typeNot Eligible

Publication series

NameVTT Publications
PublisherVTT
No.105
ISSN (Print)1235-0621
ISSN (Electronic)1455-0849

Fingerprint

Glass fibers
Laminates
Fracture toughness
Fracture mechanics
Mechanics
Finite element method

Keywords

  • epoxy laminates
  • fiberglass reinforced plastics
  • fracture mechanics
  • fracture strength
  • toughness
  • fracture tests
  • notch tests
  • bend tests
  • mathematical models
  • analysis (mathematics)
  • finite element analysis
  • calculations

Cite this

Keinänen, H., Uuttu, T., & Lehtonen, M. (1992). Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate. Espoo: VTT Technical Research Centre of Finland. VTT Publications, No. 105
Keinänen, Heikki ; Uuttu, Tero ; Lehtonen, Mikko. / Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate. Espoo : VTT Technical Research Centre of Finland, 1992. 33 p. (VTT Publications; No. 105).
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abstract = "In this work fracture mechanics and experimental mechanics approaches were used to characterize mode-II interlaminar fracture of a glass-fibre reinforced epoxy (GRFP) laminate. Mode-II interlaminar fracture toughness was characterized by using the end-notched flexure (ENF) test. The ENF-specimen was modelled by using both analytical (beam theory) and numerical (finite-element method) approaches. Calculated results were compared to experimental ones and the interlaminar mode-II fracture toughness of the particular laminate was determined. In the particular case the ENF-test is suitable for characterization the interlaminar fracture toughness.",
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Keinänen, H, Uuttu, T & Lehtonen, M 1992, Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate. VTT Publications, no. 105, VTT Technical Research Centre of Finland, Espoo.

Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate. / Keinänen, Heikki; Uuttu, Tero; Lehtonen, Mikko.

Espoo : VTT Technical Research Centre of Finland, 1992. 33 p. (VTT Publications; No. 105).

Research output: Book/ReportReportProfessional

TY - BOOK

T1 - Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate

AU - Keinänen, Heikki

AU - Uuttu, Tero

AU - Lehtonen, Mikko

N1 - Project code: KAU10022

PY - 1992

Y1 - 1992

N2 - In this work fracture mechanics and experimental mechanics approaches were used to characterize mode-II interlaminar fracture of a glass-fibre reinforced epoxy (GRFP) laminate. Mode-II interlaminar fracture toughness was characterized by using the end-notched flexure (ENF) test. The ENF-specimen was modelled by using both analytical (beam theory) and numerical (finite-element method) approaches. Calculated results were compared to experimental ones and the interlaminar mode-II fracture toughness of the particular laminate was determined. In the particular case the ENF-test is suitable for characterization the interlaminar fracture toughness.

AB - In this work fracture mechanics and experimental mechanics approaches were used to characterize mode-II interlaminar fracture of a glass-fibre reinforced epoxy (GRFP) laminate. Mode-II interlaminar fracture toughness was characterized by using the end-notched flexure (ENF) test. The ENF-specimen was modelled by using both analytical (beam theory) and numerical (finite-element method) approaches. Calculated results were compared to experimental ones and the interlaminar mode-II fracture toughness of the particular laminate was determined. In the particular case the ENF-test is suitable for characterization the interlaminar fracture toughness.

KW - epoxy laminates

KW - fiberglass reinforced plastics

KW - fracture mechanics

KW - fracture strength

KW - toughness

KW - fracture tests

KW - notch tests

KW - bend tests

KW - mathematical models

KW - analysis (mathematics)

KW - finite element analysis

KW - calculations

M3 - Report

SN - 951-38-4223-1

T3 - VTT Publications

BT - Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Keinänen H, Uuttu T, Lehtonen M. Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate. Espoo: VTT Technical Research Centre of Finland, 1992. 33 p. (VTT Publications; No. 105).