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Characterization of delamination and transverse cracking in graphite/epoxy laminates by acoustic emission
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ishaei, O. Garg, A. |
| Copyright Year | 1983 |
| Description | Efforts to characterize and differentiate between two major failure processes in graphite/epoxy composites - transverse cracking and Mode I delamination are described. Representative laminates were tested in uniaxial tension and flexure. The failure processes were monitored and identified by acoustic emission (AE). The effect of moisture on AE was also investigated. Each damage process was found to have a distinctive AE output that is significantly affected by moisture conditions. It is concluded that AE can serve as a useful tool for detecting and identifying failure modes in composite structures in laboratory and in service environments. |
| File Size | 269356 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830019826 |
| Archival Resource Key | ark:/13960/t2p60db5g |
| Language | English |
| Publisher Date | 1983-05-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Hygroscopicity Moisture Content Tensile Tests Delaminating Failure Modes Acoustic Emission Graphite-epoxy Composites Cracking Fracturing Exposure Damage Crack Initiation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
