Design of an element test specimen for fatigue delamination growth of a thick laminate

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Abstract

Following the observation of multiple delaminations growing from a tunnelling crack in the spar cap of a wind turbine rotor blade subjected to cyclic loading, an element test specimen is proposed. Design of the element test specimen to study fatigue delamination of a thick laminate is presented. Complexities inherent to a full structure e.g., curvatures, ply drops, manufacturing defects, etc. are removed to study the fatigue delamination damage mechanism. The element test specimen is made of unidirectional layers with two embedded artificial delamination cracks connected by a tunnelling crack. In this paper, analytical and numerical (2D) models are used to design the element test specimen.
Original languageEnglish
Title of host publication43rd Risoe International Symposium on Materials Science
Number of pages10
Volume1293
PublisherIOP Publishing
Publication date2023
Article number012017
DOIs
Publication statusPublished - 2023
Event43rd Risø International Symposium on Materials Science - Risø, Roskilde, Denmark
Duration: 4 Sept 20237 Sept 2023

Conference

Conference43rd Risø International Symposium on Materials Science
Country/TerritoryDenmark
CityRisø, Roskilde
Period04/09/202307/09/2023
SeriesIOP Conference Series: Materials Science and Engineering
ISSN1757-8981

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