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2 Polish Maritime Research

2 2006

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Sandwich panels in shipbuilding

Metschkow B.

Polish Maritime Research

2006

S 1

5-8

In this paper a short historical outline of laser technique development and its application to welding sandwich panels, is presented. Laser-welded sandwich panels of different geometry, today introduced in industrial scale, were described. Prefabrication process of folded ship constructions, in particular, of panel-to-panel connections and hybrid (sandwich panel – conventional construction) structures, was discussed. Attention was paid to various aspects of prefabrication, assembly and use of panel constructions.

FEM analysis of ultimate strength of steel panels

Bogdaniuk M., Górecki Z., Brzóska M.

Polish Maritime Research

2006

S 1

21-23

A method was described of ultimate strength calculation of compressed steel panels proposed for shipbuilding applications. The calculations consist in applying Finite Element Method (FEM) to a model composed of finite shell elements. Large displacement values and plastic flow of material are taken into consideration. Results of ultimate strength calculations of an example panel under compression were compared with those from experimental tests. Accuracy of a proposed simple method of ultimate strength assessment based on the longitudinal bending theory of rod with initial deflections, was also investigated.