Loading...
Please wait, while we are loading the content...
Similar Documents
Reliability-based failure analysis of brittle materials
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ghosn, Louis J. Powers, Lynn M. |
| Copyright Year | 1989 |
| Description | The reliability of brittle materials under a generalized state of stress is analyzed using the Batdorf model. The model is modified to include the reduction in shear due to the effect of the compressive stress on the microscopic crack faces. The combined effect of both surface and volume flaws is included. Due to the nature of fracture of brittle materials under compressive loading, the component is modeled as a series system in order to establish bounds on the probability of failure. A computer program was written to determine the probability of failure employing data from a finite element analysis. The analysis showed that for tensile loading a single crack will be the cause of total failure but under compressive loading a series of microscopic cracks must join together to form a dominant crack. |
| File Size | 2799180 |
| Page Count | 128 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890011118 |
| Archival Resource Key | ark:/13960/t8bg7km34 |
| Language | English |
| Publisher Date | 1989-02-01 |
| Access Restriction | Open |
| Subject Keyword | Finite Element Method Stress Analysis Numerical Analysis Compression Loads Cracking Fracturing Compressive Strength Brittle Materials Crack Initiation 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 |
