Loading...
Please wait, while we are loading the content...
Similar Documents
Advanced finite element modeling of low cycle fatigue crack growth
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | McGill, Preston Wells, Doug Gregg, Wayne Swanson, Greg |
| Copyright Year | 2001 |
| Description | This document (a viewgraph presentation) assumes a crack-like defect of a size which may be missed in inspection will exist in most critical location of any critical structure or component. Flaw existence assumption is usually, but not always, conservative based on past experiences in NASA and knowledge of manufacturing processes. Cyclic, environmental, and sustained loads used to generate stresses on models. Fracture Mechanics analysis used to predict crack growth and residual strength. Must show that defective structure will still provide four times required mission lifetime. Special exemptions cover redundant structures, low risk parts, etc. Assessments require specialized software tools, experienced analysts, and reliable material crack growth rate test database. |
| File Size | 542532 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20010069690 |
| Archival Resource Key | ark:/13960/t7pp4207j |
| Language | English |
| Publisher Date | 2001-01-01 |
| Access Restriction | Open |
| Subject Keyword | Numerical Analysis Finite Element Method Position Location Fracture Mechanics Fatigue Materials Cyclic Loads Residual Strength 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 | Article |
