Skip to content

Reduced notch sensitivity in pseudo-ductile CFRP thin ply angle-ply laminates with central 0° plies

Research output: Contribution to journalArticle

Standard

Reduced notch sensitivity in pseudo-ductile CFRP thin ply angle-ply laminates with central 0° plies. / Wu, Xun; Fuller, Jonathan; Longana, Marco; Wisnom, Michael.

In: Composites Part A: Applied Science and Manufacturing, Vol. 111, 01.08.2018, p. 62-72.

Research output: Contribution to journalArticle

Harvard

APA

Vancouver

Author

Wu, Xun ; Fuller, Jonathan ; Longana, Marco ; Wisnom, Michael. / Reduced notch sensitivity in pseudo-ductile CFRP thin ply angle-ply laminates with central 0° plies. In: Composites Part A: Applied Science and Manufacturing. 2018 ; Vol. 111. pp. 62-72.

Bibtex

@article{6542453af4404bd582cbe3f055c99487,
title = "Reduced notch sensitivity in pseudo-ductile CFRP thin ply angle-ply laminates with central 0° plies",
abstract = "This paper presents an experimental investigation on the unnotched and open-hole tensile behaviour of pseudo-ductile thin ply angle-ply carbon fibre/epoxy laminates with central 0° plies. Laminates with two different configurations of [±265/0]s and [±252/0]s were designed and tested under unnotched and open-hole tensile loading. Metal-like tensile stress-strain curves with a plateau were observed in both unnotched configurations. The open-hole net-section strength of the [±252/0]s laminate attained 96{\%} of the unnotched “yield” strength. Digital image correlation and X-ray CT-scan images showed that the same damage mechanisms of central 0° ply fragmentation and local dispersed delamination observed in unnotched pseudo-ductile laminates were present in the open-hole specimens of the same configuration. These damage mechanisms caused stress redistribution around the hole and reduced the notch sensitivity in pseudo-ductile laminates under open-hole tensile loading. The main factors governing the open-hole performance are also discussed.",
keywords = "Fragmentation, Delamination, Stress concentrations, Damage mechanics",
author = "Xun Wu and Jonathan Fuller and Marco Longana and Michael Wisnom",
year = "2018",
month = "8",
day = "1",
doi = "10.1016/j.compositesa.2018.05.011",
language = "English",
volume = "111",
pages = "62--72",
journal = "Composites Part A: Applied Science and Manufacturing",
issn = "1359-835X",
publisher = "Elsevier Science",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - Reduced notch sensitivity in pseudo-ductile CFRP thin ply angle-ply laminates with central 0° plies

AU - Wu, Xun

AU - Fuller, Jonathan

AU - Longana, Marco

AU - Wisnom, Michael

PY - 2018/8/1

Y1 - 2018/8/1

N2 - This paper presents an experimental investigation on the unnotched and open-hole tensile behaviour of pseudo-ductile thin ply angle-ply carbon fibre/epoxy laminates with central 0° plies. Laminates with two different configurations of [±265/0]s and [±252/0]s were designed and tested under unnotched and open-hole tensile loading. Metal-like tensile stress-strain curves with a plateau were observed in both unnotched configurations. The open-hole net-section strength of the [±252/0]s laminate attained 96% of the unnotched “yield” strength. Digital image correlation and X-ray CT-scan images showed that the same damage mechanisms of central 0° ply fragmentation and local dispersed delamination observed in unnotched pseudo-ductile laminates were present in the open-hole specimens of the same configuration. These damage mechanisms caused stress redistribution around the hole and reduced the notch sensitivity in pseudo-ductile laminates under open-hole tensile loading. The main factors governing the open-hole performance are also discussed.

AB - This paper presents an experimental investigation on the unnotched and open-hole tensile behaviour of pseudo-ductile thin ply angle-ply carbon fibre/epoxy laminates with central 0° plies. Laminates with two different configurations of [±265/0]s and [±252/0]s were designed and tested under unnotched and open-hole tensile loading. Metal-like tensile stress-strain curves with a plateau were observed in both unnotched configurations. The open-hole net-section strength of the [±252/0]s laminate attained 96% of the unnotched “yield” strength. Digital image correlation and X-ray CT-scan images showed that the same damage mechanisms of central 0° ply fragmentation and local dispersed delamination observed in unnotched pseudo-ductile laminates were present in the open-hole specimens of the same configuration. These damage mechanisms caused stress redistribution around the hole and reduced the notch sensitivity in pseudo-ductile laminates under open-hole tensile loading. The main factors governing the open-hole performance are also discussed.

KW - Fragmentation

KW - Delamination

KW - Stress concentrations

KW - Damage mechanics

UR - http://www.scopus.com/inward/record.url?scp=85047443659&partnerID=8YFLogxK

U2 - 10.1016/j.compositesa.2018.05.011

DO - 10.1016/j.compositesa.2018.05.011

M3 - Article

VL - 111

SP - 62

EP - 72

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

SN - 1359-835X

ER -