The Influence of Weld Metal Properties, Weld Geometry and Applied Load on Weld System Performance.
Abstract
Alloy development programs have significantly increased the ductility of steels available for ship structures. Design decisions regarding the optimum use of these alloys often reflect limitations imposed by weld performance considerations and available analytical methods. In this investigation, a sufficiently general analytical methodology, based on the distribution of strain energy density, is applied to the computational prediction of weld performance and fracture. Fracture at a material point coincides with a critical strain energy density value associated with the continuum fracture toughness of the material. The critical strain energy density value for each component of the weld metal, heat affected zone and base metal system are obtained from uniaxial tension test data. The role of weld crown, weld metal strength and applied load to butt welded panel performance are examined parametrically. The results suggest that particular combinations of these parameters may offer significant advantages in weld performance.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 25, 1988
- Accession Number
- ADA193403
Entities
People
- Mitchell I. Jolles
- Peter Matic
Organizations
- United States Naval Research Laboratory