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Fatigue degradation and failure of rotating composite structures - Materials characterisation and underlying mechanisms

Abstract

The present review concerns rotating composite structures, in which fatigue degradation is of key concern for in-service failure. Such applications are for instance rotor blades in wind turbines, helicopter rotor blades, flywheels for energy storage, marine and aeronautical propellers, and rolls for paper machines. The purpose is to identify areas where impending efforts should be made to make better use of composite materials in these applications. In order to obtain better design methodologies, which would allow more reliable and slender structures, improved test methods are necessary. Furthermore, the relation between structural, component and specimen test results should be better understood than what is presently the case. Improved predictive methods rely on a better understanding of the underlying damage mechanisms. With mechanism-based models, the component substructure or even the material microstructure could be optimised for best possible fatigue resistance. These issues are addressed in the present report, with special emphasis on test methods, and scaling from damage mechanisms to relevant material properties. (au)
Publication Date:
Mar 01, 2001
Product Type:
Technical Report
Report Number:
RISO-R-1261(EN)
Reference Number:
EDB-01:065720
Resource Relation:
Other Information: 15 ills., 195 refs.; PBD: Mar 2001
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; DAMAGE; FAILURES; FATIGUE; MATERIALS TESTING; REVIEWS; ROTORS; TURBINE BLADES
OSTI ID:
20168212
Research Organizations:
Risoe National Lab., Roskilde (Denmark). Materials Research Dept.
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: ISBN 87-550-2865-9; ISBN 87-550-2866-7 (Internet); TRN: DK0101502
Availability:
Also available on www.risoe.dk/rispubl/AFM/ris-r-1261.htm; Available to ETDE participating countries only(see www.etde.org); commercial reproduction prohibited; OSTI as DE20168212
Submitting Site:
DK
Size:
55 pages
Announcement Date:
Aug 16, 2001

Citation Formats

Gamstedt, E K, and Andersen, S I. Fatigue degradation and failure of rotating composite structures - Materials characterisation and underlying mechanisms. Denmark: N. p., 2001. Web.
Gamstedt, E K, & Andersen, S I. Fatigue degradation and failure of rotating composite structures - Materials characterisation and underlying mechanisms. Denmark.
Gamstedt, E K, and Andersen, S I. 2001. "Fatigue degradation and failure of rotating composite structures - Materials characterisation and underlying mechanisms." Denmark.
@misc{etde_20168212,
title = {Fatigue degradation and failure of rotating composite structures - Materials characterisation and underlying mechanisms}
author = {Gamstedt, E K, and Andersen, S I}
abstractNote = {The present review concerns rotating composite structures, in which fatigue degradation is of key concern for in-service failure. Such applications are for instance rotor blades in wind turbines, helicopter rotor blades, flywheels for energy storage, marine and aeronautical propellers, and rolls for paper machines. The purpose is to identify areas where impending efforts should be made to make better use of composite materials in these applications. In order to obtain better design methodologies, which would allow more reliable and slender structures, improved test methods are necessary. Furthermore, the relation between structural, component and specimen test results should be better understood than what is presently the case. Improved predictive methods rely on a better understanding of the underlying damage mechanisms. With mechanism-based models, the component substructure or even the material microstructure could be optimised for best possible fatigue resistance. These issues are addressed in the present report, with special emphasis on test methods, and scaling from damage mechanisms to relevant material properties. (au)}
place = {Denmark}
year = {2001}
month = {Mar}
}