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Identification of the Stress Intensity Factor of Carbon Cathode by Digital Image Correlation
- Source :
- Light Metals 2017 ISBN: 9783319515403
- Publication Year :
- 2017
- Publisher :
- Springer International Publishing, 2017.
-
Abstract
- Crack propagation in carbon cathode used in the aluminium industry has been investigated through flexural tests on notched specimens. The main parameters of interest were the geometrical evolution of the crack and the stress intensity factor at the tip ends. The latter, in the case of interfacial fracture in two-dimensional geometries, can be related to normal (mode I) and shear (mode II) stresses. In this work, a new methodology has been applied which optically measures the crack tip displacement field by Digital Image Correlation. The stress intensity factors derived from the experimental data are consistent with results available in the literature. Furthermore, the preliminary results showed that characterizing the mode I (opening) only is somehow challenging due to the heterogeneity of such carbonaceous materials.
- Subjects :
- Digital image correlation
Materials science
business.industry
Mode (statistics)
Fracture mechanics
02 engineering and technology
01 natural sciences
Cathode
law.invention
010101 applied mathematics
020303 mechanical engineering & transports
Optics
0203 mechanical engineering
Shear (geology)
Flexural strength
law
Displacement field
0101 mathematics
Composite material
business
Stress intensity factor
Subjects
Details
- ISBN :
- 978-3-319-51540-3
- ISBNs :
- 9783319515403
- Database :
- OpenAIRE
- Journal :
- Light Metals 2017 ISBN: 9783319515403
- Accession number :
- edsair.doi...........bd2e9d06bb0323d29ae8a123e112f07e
- Full Text :
- https://doi.org/10.1007/978-3-319-51541-0_152