Loading...
Please wait, while we are loading the content...
Fracture toughness computational simulation of general delaminations in fiber composites
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wilt, T. E. Murthy, P. L. N. Chamis, C. C. |
| Copyright Year | 1988 |
| Description | A procedure is described to computationally simulate composite laminate fracture toughness in terms of strain energy release rate. It is also used to evaluate the degradation in laminate structural integrity in terms of displacements, loss in stiffness, loss in vibration frequencies and loss in buckling resistance. Specific laminates are selected for detail studies in order to demonstrate the generality of the procedure. These laminates had center delaminations, off-center delaminations, and pocket delaminations (center and off-center) at the free-edge and center delaminations at the interior. The laminates had two different thicknesses and were made from three different materials. The results obtained are presented in graphical form to illustrate the effects of delamination on the laminate structural integrity and on the laminate strain energy release rate (composite fracture toughness). |
| File Size | 779435 |
| Page Count | 22 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890004150 |
| Archival Resource Key | ark:/13960/t3rv5fr25 |
| Language | English |
| Publisher Date | 1988-01-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Strain Energy Release Rate Delaminating Failure Modes Fiber Composites Computerized Simulation Fracture Strength Laminates Variable Geometry Structures Buckling 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 |
