This work was undertaken for the purpose of improving the reliability of strength measurements for the specific case of narrow gap pipe girth welds. The investigation was part of a major consolidated program of research sponsored by DOT-PHMSA and PRCI to advance weld design, establish weld testing procedures and assessment methodologies, and develop optimized welding solutions for joining high strength steel pipe. Development of an all-weld metal tensile test protocol for high strength steel pipe applications. The focus is on test method evolution as researchers sought improvements in measurement...
This work was undertaken for the purpose of improving the reliability of strength measurements for the specific case of narrow gap pipe girth welds. The investigation was part of a major consolidated program of research sponsored by DOT-PHMSA and PRCI to advance weld design, establish weld testing procedures and assessment methodologies, and develop optimized welding solutions for joining high strength steel pipe. Development of an all-weld metal tensile test protocol for high strength steel pipe applications. The focus is on test method evolution as researchers sought improvements in measurement consistency. With these improvements came a broader understanding of the stress-strain behavior of high strength weld metal and some of the factors that influence tensile results. The results show that traditional methods of measurement can become inadequate as materials and methods of fabrication change. In this case, continuing to downsize tensile specimens for measurement of weld metal properties without establishing a context for those measurements can easily lead to errors in assessing the suitability of welding materials and welding procedures for the intended applications.