To cite this article: Cesare Mario Rizzo & Wolfgang Fricke ( ): Fatigue assessment of bulb stiffener joints according to local approaches, Ships and Offshore Structures, 8:1, 73-83

with other stiffeners such as flat bars or structural angles. • The compact shape of a bulb flat offers easy access for welding and painting. • The asymmetric bulb flat shape lends itself to simplified collar connection when compared to alternative stiffeners such as 'T's and angles. • The rounded profile of a bulb flat,

An improved composite stiffener and methods and tooling used to form the same. The stiffener includes one or more base flanges, a composite rod extending in an axial direction, a bulb cap

An improved composite stiffener and methods and tooling used to form the same. The stiffener includes one or more base flanges, a composite rod extending in an axial direction, a bulb cap surrounding the composite rod, and an upright web extending from the one or more base flanges to the base cap. The upright web includes a non-linear profile in the axial direction providing the improved

This paper describes fatigue tests at stiffener end connections with bulb flats and angle bars and focuses on the question how far bulb flats are also prone to fatigue in view of the reduced

Bulb flats are the most cost-effective, efficient and corrosion-resistant solution for plate stiffening requirements. Key advantages include an excellent strength to weight ratio delivering buckling

Shipbuilding bulb flat steel application: In the design of large ships and regular ships, the main hull mostly uses the shipbuilding bulb flat steel, with the same thickness and steel grade to the connected shipbuilding steel plate, as the bone (also known as rib or keel). Shipbuilding bulb flat steel size: Model. size (mm) CSA (cm2) weight (kg

Bulb plates and angles are rarely used these days, if at all. Paint also adheres better to the rounded shapes of bulb stiffeners than the sharp corners 

Ship Building Steel section. Bulb bars/flats are asymmetrical plate stiffeners used for ship building hull construction (Ship Hull, Ballast Tanks, and Cargo Holds) & Bridges (Box & Plate Girder, Steel Decks, and Expansion Joints). These special profiles provide a wide range of benefits compared to conventional plate stiffeners used for the purpose.

This work investigated • Bulb flats can save weight the buckling capacity of plate and compared with flat bars and bulb flat stiffener arrangements. angles 

The use of bulb flat plate stiffeners in ship design is said to reduce building time and maintenance cost. Companies that produce bulb flat plate stiffeners manufacture each stiffener as a single unit, which reportedly results in less production cost compared to welded or fabricated stiffeners.