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Damage characterization in sic/sic composites using electrical resistance
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Xia, Zhenhai Smith, Craig E. |
| Copyright Year | 2011 |
| Description | SiC/SiC ceramic matrix composites (CMCs) under creep-rupture loading accumulate damage by means of local matrix cracks that typically form near a stress concentration, such as a 90o fiber tow or large matrix pore, and grow over time. Such damage is difficult to detect through conventional techniques. Electrical resistance changes can be correlated with matrix cracking to provide a means of damage detection. Sylramic-iBN fiber-reinforced SiC composites with both melt infiltrated (MI) and chemical vapor infiltrated (CVI) matrix types are compared here. Results for both systems exhibit an increase in resistance prior to fracture, which can be detected either in situ or post-damage. |
| File Size | 3609947 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110008754 |
| Archival Resource Key | ark:/13960/t8vb34j3m |
| Language | English |
| Publisher Date | 2011-01-23 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Characterization Cracks Ceramic Matrix Composites Vapors Electrical Resistance Creep Rupture Strength Detection Damage Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
