Effects of Planar Weld Defects on the Fatigue Properties of 5083/5183 Aluminum Alloy Welds.
Abstract
The lack of penetration defects (LOP) can substantially reduce the fatigue life of these welds. The largest defects reduce the fatigue life the most. At 19 ksi., the largest LOP (2a approximately equal to 0.15 in.) can reduce the fatigue life from 80,000 cycles to 2,000 cycles. At 12 ksi., the largest LOP can reduce fatigue life from 4,000,000 cycles to 8,000 cycles. In most cases, the LOP had porosity associated with them. The fatigue crack initiation site usually includes these pores; consequently, the above data reflects the fatigue resistance of LOP with associated porosity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 31, 1975
- Accession Number
- ADA017449
Entities
People
- F. V. Lawrence
Organizations
- University of Illinois Urbana–Champaign