THE FUNDAMENTAL FACTORS INFLUENCING THE BEHAVIOR OF WELDED STRUCTURES UNDER CONDITIONS OF MULTIAXIAL STRESS AND VARIATIONS OF TEMPERATURE
The eccentric notch tensile test previously employed in exploring the relative ductility at the midthickness level of A and C steel weldments has been applied to an evaluation of the ductility at the surface level and at various positions in the weld metal of a C steel weldment. The surface tests at various low temperatures located a zone of low ductility at a distance of 0.4 inch from the weld centerline of 3/4 inch plate. This zone was outside the so-called heat affected zone and appeared to have the same metallographic structure as the base plate. These findings are in agreement with those previously reported at the midthickness level of both A and C steel weldments. Low temperature probe tests in the weld metal failed to detect any zones of low ductility. In addition, data are presented comparing the notched (eccentric and concentric) and unnotched tensile properties at the midthickness level of an A steel weldment. Various low temperature tests revealed that the concentric notch ductility varied across the welded plate in the same manner as the eccentric notch strength, thus confirming that the eccentric notch strength is a measure of notch ductility. In contrast, the variation in concentric notch strength and unnotched tensile properties across the welded plate failed to detect zones of low ductility in the subcritically heated plate. A comparison with other investigations of welded plate indicates that the eccentric notch tensile test is not unique in defining a region of minimum ductility in the subcritically heated parent plate and that this region may play an important role in the fracture behavior of welded plate.
Case Western Reserve UniversityDepartment of Civil Engineering
10900 Euclid Avenue
Cleveland, OH USA 44106
Ship Structure CommitteeNational Academy of Science, 2101 Constitution Avenue, NW
Washington, DC USA 20418
- Evans, E B
- Klingler, L J
- Publication Date: 1952-10-14
- Features: References;
- Pagination: 42 p.
- TRT Terms: Ductility; Fracture mechanics; Joints (Engineering); Notch tests; Steel plates; Tension tests; Welds
- Identifier Terms: Ship Structure Committee
- Uncontrolled Terms: Welded joints
- Old TRIS Terms: Tensile test; Weld ductility
- Subject Areas: Marine Transportation; Materials;
- Accession Number: 00330998
- Record Type: Publication
- Source Agency: Ship Structure Committee
- Report/Paper Numbers: SSC- 54 Prog Rpt.
- Contract Numbers: NObs-45470, NObs-50148
- Files: TRIS
- Created Date: May 21 1981 12:00AM