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Analysis of notched metal matrix composites under tension loading
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bigelow, C. A. |
| Copyright Year | 1988 |
| Description | Presented are techniques based on 3-D finite-element analysis for the examination of continuous fiber reinforced metal matrix composites. Examples are shown for specific metal matrix composites such as boron/aluminum and silicon-carbide/aluminum. Specimen stress-strain behavior and stress at first fiber failure were predicted for boron/aluminum laminates containing circular holes and crack-like slits. The predictions compared very well for (+ or - 45) sub 2s laminates. Mesh configuration was shown to have an effect on the calculation of stresses local to the notch. The presence of thin interface layers of matrix material had a significant influence on the slit-tip stress state, causing sharper stress gradients near the notch. Interface layers reduced the slit-tip fibers stresses in a (+ or - 45) sub s silicon-carbide/aluminum laminate but increased them in a (0/90) sub s laminate. |
| File Size | 3816863 |
| Page Count | 43 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880015329 |
| Archival Resource Key | ark:/13960/t3130s20c |
| Language | English |
| Publisher Date | 1988-06-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Stress Analysis Aluminum Failure Modes Silicon Carbides Fiber Composites Notch Tests Fibers Finite Element Method Three Dimensional Bodies Boron Stress-strain Relationships Elastoplasticity Stress Distribution Metal Matrix Composites Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
