Measurement of the mode II intralaminar fracture toughness and R-curve of polymer composites using a modified Iosipescu specimen and the size effect law

G. Catalanotti; J. Xavier

doi:10.1016/j.engfracmech.2015.03.005

Measurement of the mode II intralaminar fracture toughness and R-curve of polymer composites using a modified Iosipescu specimen and the size effect law

G. Catalanotti^*, J. Xavier

^*Corresponding author for this work

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

31 Citations (Scopus)

279 Downloads (Pure)

Abstract

A modified Iosipescu specimen is proposed to measure the mode II intralaminar fracture toughness and the corresponding crack resistance curve of fibre reinforced composites. Due to the impossibility of scaling the specimen, a modification of the classical size effect method is proposed. The calculation of the crack driving force curves is performed using the Finite Element Method. The classical Iosipescu shear feature was used and tests were coupled with digital image correlation to support the proposed approach. Experiments were performed on IM7/8552 material system and the R-curve was obtained. The steady-state value of the fracture toughness of the ply is found to be equal to R0ss=34.4kJ/m².

Original language	English
Pages (from-to)	202-214
Number of pages	13
Journal	Engineering Fracture Mechanics
Volume	138
Early online date	10 Mar 2015
DOIs	https://doi.org/10.1016/j.engfracmech.2015.03.005
Publication status	Published - Apr 2015
Externally published	Yes

Keywords

A. Polymer-matrix composites (PMCs)
B. Fracture toughness
C. Analytical modelling
D. Mechanical testing

ASJC Scopus subject areas

Mechanical Engineering
Mechanics of Materials
General Materials Science

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10.1016/j.engfracmech.2015.03.005Licence: Unspecified

Measurement of the mode II intralaminar fracture toughness and R-curve of polymer composites using a modified Iosipescu specimen and the size effect law
Copyright 2015 Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits distribution and reproduction for non-commercial purposes, provided the author and source are cited.
Accepted author manuscript, 2.18 MBLicence: CC BY-NC-ND

Cite this

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title = "Measurement of the mode II intralaminar fracture toughness and R-curve of polymer composites using a modified Iosipescu specimen and the size effect law",

abstract = "A modified Iosipescu specimen is proposed to measure the mode II intralaminar fracture toughness and the corresponding crack resistance curve of fibre reinforced composites. Due to the impossibility of scaling the specimen, a modification of the classical size effect method is proposed. The calculation of the crack driving force curves is performed using the Finite Element Method. The classical Iosipescu shear feature was used and tests were coupled with digital image correlation to support the proposed approach. Experiments were performed on IM7/8552 material system and the R-curve was obtained. The steady-state value of the fracture toughness of the ply is found to be equal to R0ss=34.4kJ/m2.",

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author = "G. Catalanotti and J. Xavier",

year = "2015",

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doi = "10.1016/j.engfracmech.2015.03.005",

language = "English",

volume = "138",

pages = "202--214",

journal = "Engineering Fracture Mechanics",

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AU - Catalanotti, G.

AU - Xavier, J.

PY - 2015/4

Y1 - 2015/4

N2 - A modified Iosipescu specimen is proposed to measure the mode II intralaminar fracture toughness and the corresponding crack resistance curve of fibre reinforced composites. Due to the impossibility of scaling the specimen, a modification of the classical size effect method is proposed. The calculation of the crack driving force curves is performed using the Finite Element Method. The classical Iosipescu shear feature was used and tests were coupled with digital image correlation to support the proposed approach. Experiments were performed on IM7/8552 material system and the R-curve was obtained. The steady-state value of the fracture toughness of the ply is found to be equal to R0ss=34.4kJ/m2.

AB - A modified Iosipescu specimen is proposed to measure the mode II intralaminar fracture toughness and the corresponding crack resistance curve of fibre reinforced composites. Due to the impossibility of scaling the specimen, a modification of the classical size effect method is proposed. The calculation of the crack driving force curves is performed using the Finite Element Method. The classical Iosipescu shear feature was used and tests were coupled with digital image correlation to support the proposed approach. Experiments were performed on IM7/8552 material system and the R-curve was obtained. The steady-state value of the fracture toughness of the ply is found to be equal to R0ss=34.4kJ/m2.

KW - A. Polymer-matrix composites (PMCs)

KW - B. Fracture toughness

KW - C. Analytical modelling

KW - D. Mechanical testing

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DO - 10.1016/j.engfracmech.2015.03.005

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SN - 0013-7944

VL - 138

SP - 202

EP - 214

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

ER -

Measurement of the mode II intralaminar fracture toughness and R-curve of polymer composites using a modified Iosipescu specimen and the size effect law

Abstract

Keywords

ASJC Scopus subject areas

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