New structural components, such as sandwich panels, can be efficiently manufactured by using the deep penetration effect typical to high power beam welding techniques. Sandwich structures offer high accuracy, higher structural performance, increased fire safety as well as benefits in assembly. For the first time those structures arc now available on the market. Potential applications cover both shipbuilding and various areas of structural steel engineering such as bridges, railway vehicles and buildings. To provide a base for successful! application, a considerable amount of structural testing along with the development of efficient manufacturing and assembly methods and the approval of the structure by classification societies has been necessary. This paper briefly describes the manufacturing process and operational properties of sandwich panels.
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Frank Roland and Boshidar Metschkow (1970) studied this question.