To establish rational approaches to weld strength requirements. Such requirements are correlated to the expected construction and service conditions throughout the pipeline's service life. No single strength requirement is good for all conditions. “Over-specifying" the strength requirement may not be necessary and can be counterproductive. On the other hand, “under-specifying" the strength requirement may lead to inadequate safety and integrity. This work includes: Initial feasibility study of weld strength requirement for a particular pipe grade and application, Evaluation of the impact...
To establish rational approaches to weld strength requirements. Such requirements are correlated to the expected construction and service conditions throughout the pipeline's service life. No single strength requirement is good for all conditions. “Over-specifying" the strength requirement may not be necessary and can be counterproductive. On the other hand, “under-specifying" the strength requirement may lead to inadequate safety and integrity. This work includes: Initial feasibility study of weld strength requirement for a particular pipe grade and application, Evaluation of the impact of weld strength on weld performance measures, such as the tensile strain capacity of the girth welds, Playing “what-if" scenarios and developing trade-off strategies among various parameters governing the girth weld integrity for certain performance requirement. For instance high degree of overmatching may be used to compensate for large high-low misalignment.