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Notch and Strain Rate Sensitivity of Non-Crimp Fabric Composites
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.ORCID iD: 0000-0002-9744-4550
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.ORCID iD: 0000-0002-1187-4796
2009 (English)In: Composites Science And Technology, ISSN 0266-3538, E-ISSN 1879-1050, Vol. 69, no 6, 793-800 p.Article in journal (Refereed) Published
Abstract [en]

The notch and strain rate sensitivity of noncrimp glass fibre/vinyl-ester laminates subjected to uniaxial tensile loads has been investigated experimentally. Two set of notch configurations were tested; one where circular holes were drilled and another where fragment simulating projectiles were fired through the plate creating a notch. Experiments were conducted for strain rates rangingfrom 10-4/s to 102/s using servo hydraulic machines. A significant increase in strength with increasing strain rate was observed for both notched and unnotched specimens. High speed photography revealed changes in failure mode, for certain laminate configurations, as the strain rate increased. The tested laminate configurations showed fairly small notch sensitivity for the whole range of strain rates.

Place, publisher, year, edition, pages
Elsevier, 2009. Vol. 69, no 6, 793-800 p.
Keyword [en]
strain rate, non-crimp, notch sensitivity, glass fibre, vinyl-ester, dynamic, impact
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-65571DOI: 10.1016/j.compscitech.2008.06.002ISI: 000265518200013Scopus ID: 2-s2.0-62849109955OAI: oai:DiVA.org:kth-65571DiVA: diva2:483499
Conference
16th International Conference on Composite Materials
Note

QC 20120203

Available from: 2012-02-03 Created: 2012-01-25 Last updated: 2017-12-08Bibliographically approved
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