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Testing of CFRP at high strain rates with the Split Hopkinson Tension Bar - Evaluation of testing quality

Paper presented at the 17th European Conference on Composite Materials, ECCM 2016, 26-30th June 2016, Munich
 
: Paul, Hanna; Ledford, Noah; Mohrmann, Richard; May, Michael

:
Fulltext urn:nbn:de:0011-n-4353359 (473 KByte PDF)
MD5 Fingerprint: 4d5e9e8fb0d3ca9af6a35cb5b56ff1f8
Created on: 21.2.2017


2016, 8 pp.
European Conference on Composite Materials (ECCM) <17, 2016, Munich>
English
Presentation, Electronic Publication
Fraunhofer EMI ()
testing method; Split Hopkinson Tension Bar; strain rate; carbon fiber reinforced composite

Abstract
Split Hopkinson Tension Bars are used to test materials at high strain rates under tensile loading. For carbon fiber reinforced composites commonly the specimen are mounted using glued end caps. An alternative mounting concept is presented. The quality of the test results is evaluated using Finite Element Simulations and comparing real test results with two different mountings. The results showed that for low striker velocities of 4 m/s the alternative mounting is suitable. With this alternative approach other specimen dimensions are possible and the testing is less time consuming.

: http://publica.fraunhofer.de/documents/N-435335.html