BLAST LOADING OF 8-FOOT ALUMINUM BEAMS
Abstract
Sixteen built-up beams fabricated from 5456-H311 and 5456-H321 aluminum alloy were tested under uniformly distributed static and blast loads. The beams had a clear span length of 8 feet 1-5/16 in. and an end fixity of 85%. Three beams were loaded statically to failure. The remaining beams were subjected to blast loads of smaller magnitude to determine the dynamic response. Buckling occurred after yielding in the lower flange and web adjacent to the supports of static and dynamic loads of 130 and 63 psi, respectively. Based on a yield load with a factor of safety of 1.65, design static and dynamic working loads of 64AND 29 PSI RESPECTIVELY ARE RECOMMENDED FOR THE SPECIFIC BEAMS TESTED. A chart is included which may be used to predict the maximum deflection of a structural member in the plastic range under a long-duration load once the static properties are known. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 09, 1961
- Accession Number
- AD0259336
Entities
People
- D.f. Green
- S.k. Takahashi
Organizations
- Naval Facilities Engineering Service Center