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Fracture of composite panels
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Erdogan, F. Bakioglu, M. |
| Copyright Year | 1976 |
| Description | The fracture problem in panels consisting of periodically arranged load carrying and buffer strips of different materials is considered. The main emphasis is placed on the problem of a crack terminating at and crossing the interfaces and on the stress free end problem. The problem is formulated in terms of a system of singular integral equations, and numerical solutions are obtained for certain material combinations. With the study of possible crack propagation and delamination in mind, certain stress intensity factors are defined and calculated. A main result is that when the crack touches or intersects a bimaterial interface, the stress state has no longer the standard square root singularity, and, to study further propagation of the crack, the conventional fracture models need to be modified, or new models need to be developed. |
| File Size | 3080509 |
| Page Count | 23 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19760023209 |
| Archival Resource Key | ark:/13960/t09w57949 |
| Language | English |
| Publisher Date | 1976-02-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Panels Stress Analysis Fractures Materials Fracture Mechanics Stress Distribution Delaminating Composite Structures Bonding Crack Propagation 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 |
