| Title | Testing and analysis of flat and curved panels with multiple cracks |
|---|---|
| Record ID | 50371 |
| Personal Name Creator |
Broek, David; Jeong, David Y.; Thomson, Douglas |
| Source | 14p. in various pagings |
| Corporate Creator | John A. Volpe National Transportation Systems Center (U.S.); Foster-Miller, Inc. |
| Publisher | United States. Department of Transportation. Federal Aviation Administration |
| Publication Date | 19940801 |
| Language | English |
| Abstract | An experimental and analytical investigation of multiple cracking in various types of test specimens is described in this paper. The testing phase is comprised of a flat unstiffened panel series and curved stiffened and unstiffened panel series. The test specimens contained various configurations for initial damage. Static loading was applied to these specimens until ultimate failure, while loads and crack propagation were recorded. This data provides the basis for developing and validating methodologies for predicting linkup of multiple cracks, progression to failure, and overall residual strength. The results from twelve flat coupon and ten full scale curved panel tests are presented. In addition, an engineering analysis procedure was developed to predict multiple crack linkup. Reasonable agreement was found between predictions and actual test results for linkup and residual strength for both flat and curved panels. The results indicate that an engineering analysis approach has the potential to quantitatively assess the effect of multiple cracks in the arrest capability of an aircraft fuselage structure. |
| Rosap ID | dot:11759 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/11759 |
| TRT Terms | Aircraft structural components; Cracking; Fatigue cracking; Fuselages; Laboratory tests; Panels; Residual strength; Static loads |
| Classification | NTL - SAFETY AND SECURITY - Vehicle Design; NTL - SAFETY AND SECURITY - SAFETY AND SECURITY; NTL - SAFETY AND SECURITY - Aviation Safety/Airworthiness; NTL - AVIATION - AVIATION; NTL - AVIATION - Aviation Safety/Airworthiness |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
1518859 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/50000/50300/50371/19950008046_1995108046.pdf |
| Alternative URL | http://adsabs.harvard.edu/abs/1994asim.nasa...85B |
| Format | |
| Database | NTL Digital Repository |