ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The tension-tension fatigue tests for SiC/SiC composites were performed under theconditions that the maximum load Pmax was 80-90% to the fracture load of the tensile tests and thestress ratio was Rσ = 0.5. The composites exhibited a width in stress-strain hysteresis loop underone load cycling. In some cases the mean strain εmean gradually increase with increasing in numberof cycles. These variations would reflect the developments of the fatigue damage at the fiber/matrixinterface during the cyclic loading process. The pull-out lengths of the fibers for the fatigued- andnot fatigued-specimens were measured through the SEM observations after the tensile test. In allmaterials, the average pull-out length of fibers in fatigued material was larger than in not fatiguedmaterial because the cyclic loading affected on the fiber/matrix interfacial strength
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.1406.pdf
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