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Failure models for textile composites
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cox, Brian |
| Copyright Year | 1995 |
| Description | The goals of this investigation were to: (1) identify mechanisms of failure and determine how the architecture of reinforcing fibers in 3D woven composites controlled stiffness, strength, strain to failure, work of fracture, notch sensitivity, and fatigue life; and (2) to model composite stiffness, strength, and fatigue life. A total of 11 different angle and orthogonal interlock woven composites were examined. Composite properties depended on the weave architecture, the tow size, and the spatial distributions and strength of geometrical flaws. Simple models were developed for elastic properties, strength, and fatigue life. A more complicated stochastic model, called the 'Binary Model,' was developed for damage tolerance and ultimate failure. These 3D woven composites possessed an extraordinary combination of strength, damage tolerance, and notch insensitivity. |
| File Size | 6104434 |
| Page Count | 142 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19960009403 |
| Archival Resource Key | ark:/13960/t29935c5s |
| Language | English |
| Publisher Date | 1995-08-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Fatigue Life Fiber Volume Fraction Epoxy Matrix Composites Stochastic Processes Compression Loads Compressive Strength Three Dimensional Composites Tensile Strength Defects Glass Fibers Woven Composites Notch Sensitivity Carbon Fibers Stress Distribution Failure Analysis Mathematical Models Fiber Orientation Stiffness Fracture Strength Microstructure Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
