Damage Assessment in a SiC-fiber reinforced Ceramic Matrix Composite
Assessment of the fracture behavior of a SiC-fbre-reinforced barium osumilite (BMAS) ceramic matrix composite tested under static and cyclic tension conditions is reported herein. Notched specimens were used in order to limit material damage within a predefined gauge length. Imposition of successive...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Engineering |
| Online Access: | http://dx.doi.org/10.1155/2013/486326 |
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| _version_ | 1832564301466959872 |
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| author | Konstantinos G. Dassios Theodore E. Matikas |
| author_facet | Konstantinos G. Dassios Theodore E. Matikas |
| author_sort | Konstantinos G. Dassios |
| collection | DOAJ |
| description | Assessment of the fracture behavior of a SiC-fbre-reinforced barium osumilite (BMAS) ceramic matrix composite tested under static and cyclic tension conditions is reported herein. Notched specimens were used in order to limit material damage within a predefined gauge length. Imposition of successive unloading/reloading loops was found to result in an increase by 20% in material strength as compared to pure tension; the observed increase is attributed to energy dissipation from large-scale interfacial debonding phenomena that dominated the post-elastic tensile behaviour of the composite. Cyclic loading also helped establish the axial residual stress state of the fibres in the composite of tensile nature via a well-defined common intersection point of unloading-reloading cycles. A translation vector approach in the stress-strain plane was successful in establishing the residual stress-free properties of the composite and in reconciling the scatter noted in elastic properties of specimens with respect to theoretical expectations. |
| format | Article |
| id | doaj-art-f2e9b4bab2814864accddae3c984c7fd |
| institution | Kabale University |
| issn | 2314-4904 2314-4912 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj-art-f2e9b4bab2814864accddae3c984c7fd2025-02-03T01:11:21ZengWileyJournal of Engineering2314-49042314-49122013-01-01201310.1155/2013/486326486326Damage Assessment in a SiC-fiber reinforced Ceramic Matrix CompositeKonstantinos G. Dassios0Theodore E. Matikas1Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, GreeceDepartment of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, GreeceAssessment of the fracture behavior of a SiC-fbre-reinforced barium osumilite (BMAS) ceramic matrix composite tested under static and cyclic tension conditions is reported herein. Notched specimens were used in order to limit material damage within a predefined gauge length. Imposition of successive unloading/reloading loops was found to result in an increase by 20% in material strength as compared to pure tension; the observed increase is attributed to energy dissipation from large-scale interfacial debonding phenomena that dominated the post-elastic tensile behaviour of the composite. Cyclic loading also helped establish the axial residual stress state of the fibres in the composite of tensile nature via a well-defined common intersection point of unloading-reloading cycles. A translation vector approach in the stress-strain plane was successful in establishing the residual stress-free properties of the composite and in reconciling the scatter noted in elastic properties of specimens with respect to theoretical expectations.http://dx.doi.org/10.1155/2013/486326 |
| spellingShingle | Konstantinos G. Dassios Theodore E. Matikas Damage Assessment in a SiC-fiber reinforced Ceramic Matrix Composite Journal of Engineering |
| title | Damage Assessment in a SiC-fiber reinforced Ceramic Matrix Composite |
| title_full | Damage Assessment in a SiC-fiber reinforced Ceramic Matrix Composite |
| title_fullStr | Damage Assessment in a SiC-fiber reinforced Ceramic Matrix Composite |
| title_full_unstemmed | Damage Assessment in a SiC-fiber reinforced Ceramic Matrix Composite |
| title_short | Damage Assessment in a SiC-fiber reinforced Ceramic Matrix Composite |
| title_sort | damage assessment in a sic fiber reinforced ceramic matrix composite |
| url | http://dx.doi.org/10.1155/2013/486326 |
| work_keys_str_mv | AT konstantinosgdassios damageassessmentinasicfiberreinforcedceramicmatrixcomposite AT theodoreematikas damageassessmentinasicfiberreinforcedceramicmatrixcomposite |