Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Delamination Growth and Thresholds in a Carbon/Epoxy Composite under Fatigue Loading
RISE, Swerea, Swerea SICOMP.
Aero. Research Institute of Sweden.
DERA.
2001 (English)In: Journal of composites technology & research, ISSN 0884-6804, E-ISSN 1945-7537, Vol. 23, no 2, p. 55-68Article in journal (Refereed)
Abstract [en]

This paper presents a study on delamination growth in Mode I, Mode II and mixed mode under fatigue loading in an HTA/6376C composite. The computed slopes of the modified Paris plots were high. Therefore, threshold values of the strain energy release rate for delamination growth were determined. Low fatigue threshold values revealed a significant effect of fatigue loading. The largest effect was found for the ENF test (Mode II) for which the fatigue threshold value was only 10% of the critical strain energy release rate in static tests. Threshold values for MMB (mixed mode) and DCB (Mode I) tests were 15% and 23% of the static values, respectively. Fractographic evaluation revealed identical initial failure mechanisms in fatigue and static loading conditions for the ENF specimen. The ENF specimen failed by formation and coalescence of microcracks. The low fatigue threshold for the ENF specimen was explained by microscopical observations on the specimen edge. It was also shown that the fracture surfaces generated in static and fatigue DCB and MMB tests were similar.

Place, publisher, year, edition, pages
2001. Vol. 23, no 2, p. 55-68
Keywords [en]
Composite materials, Delamination, Failure mechanisms, Fatigue, Fractography, Interlaminar fracture toughness, Mixed-mode bend test, Mode I, Mode II, Shear cusps
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13225OAI: oai:DiVA.org:ri-13225DiVA, id: diva2:973421
Available from: 2016-09-22 Created: 2016-09-22 Last updated: 2017-11-21Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

http://www.astm.org/DIGITAL_LIBRARY/JOURNALS/COMPTECH/PAGES/CTR10914J.htm
By organisation
Swerea SICOMP
In the same journal
Journal of composites technology & research
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 68 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.7