Investigation of the Performance of Weldments and Prime Plate of ABS-B Steel. Part 2
Abstract
The relative performance of G180 and E6010 ABS-B ship plate weldments and prime plate was evaluated by the Explosion Bulge Test. The prime plate loses its ability to develop extensive deformation prior to fracture in the range of -60 to -80 deg F; the G180 weldment develops a similar loss in the range of 20 to 0 deg F, and the E6010 weldment in the range of 40 to 0 deg F. The effects of various types of defects, including arc strikes, porosity, and partial penetration, were investigated. It is shown that in the service temperature range of 20 to 60 deg F only sharp, crack-like defects, such as developed by arc strikes, are sufficiently critical to eliminate extensive plastic deformation of weldments prior to failure. The effects of shot peening of ABS-B steel is demonstrated to be detrimental with respect to the resistance of this steel to initiation and propagation of brittle fractures. Wrought iron considered as a possible material for crack arrestor straps is demonstrated to be less resistant to brittle fracture than ABS-B steels.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 18, 1954
- Accession Number
- AD0045653
Entities
People
- E. W. Eschbacher
- W. S. Pellini
Organizations
- United States Naval Research Laboratory