Weld Failures Often Stem from the Violation of Simple Design Principles

摘要

During more than sixty years of investigating weld failures, the author has learned that more often than not, they are the result of violating basic design principles. In recent decades, the proliferation of sophisticated analytical tools has not changed the importance of adhering to the fundamentals of good welded design. In this paper, the senior design consultant for The Lincoln Electric Company, and author of Design of Weldments and Design of Welded Structures, will categorize various types of weld failures according to the specific design principle that was overlooked or violated. Concepts such as "provide for transverse forces," "there are no secondary members in welded design," "don't put welds in bending," and "provide a component when a force changes direction" will be addressed and illustrated.