Lambrecht, Hendrik Oliver2020-02-252020-02-251991https://hdl.handle.net/10539/28919A dissertation submitted to the faculty of Engineering: University of the Witwatersrand, Johannesburg, in fulfillment of the requirements for the degree of Master of Science in EngineeringI-beams are a commonly used section in engineering, due to the high section modulus for a given cross sectional area of a beam. Their resistance to static loads is often increased through the use of cover plates welded to areas where the applied bending moment is high. Welding, however, has a severe detrimental effect on the fatigue life of both steel and aluminium I-beams. (Abbreviation abstract)enMaterials -- Fatigue.Aluminum -- Fatigue.Aluminum -- Welding.Plates (Engineering) -- Fatigue.Thesis