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Strain rate sensitivity of titanium matrix composites under tensile loading

Hausmann, Joachim (2007) Strain rate sensitivity of titanium matrix composites under tensile loading. Materialwissenschaft und Werkstofftechnik, 38 (9), pp. 720-724.

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Abstract

Titanium matrix composites continuously reinforced by silicon carbide fibres are considered as key technology for a new generation of aero engines. High specific strength and stiffness promise significant weight savings and performance improvements. Impact loading may be one critical aspect in the design of rotating compressor components with titanium matrix composites. On the other hand the strength increases at high strain rates. Considering this additional loading capability enables a design closer to the edge. Therefore, the strength to strain rate relation needs to be examined. This paper presents results of high strain rate tests at the fly wheel device. Loadings resulting in strain rates from quasistatic loading to 740 1/s were applied. The results are discussed and the mechanism of energy consumption was investigated by determination of the plastic deformed length by scanning electron microscopy.

Document Type:Article
Title:Strain rate sensitivity of titanium matrix composites under tensile loading
Authors:
AuthorsInstitution or Email of Authors
Hausmann, JoachimUNSPECIFIED
Date:September 2007
Journal or Publication Title:Materialwissenschaft und Werkstofftechnik
Refereed publication:Yes
In ISI Web of Science:No
Volume:38
Page Range:pp. 720-724
Status:Published
Keywords:metal matrix composite, high strain rate loading, tensile testing
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Fan and Compressor Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Light Metal Composites
Deposited By: Dr.-Ing. Joachim Hausmann
Deposited On:09 Jan 2008
Last Modified:27 Apr 2009 14:36

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