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The Structural Engineer, Volume 38, Issue 4, 1960
The modern shell structure has to withstand internal and external pressures together with forces acting on the surfaces over relatively small areas. The advent of the large containment vessels in thc field of Nuclear Power Engineering (for example the Dounreay Sphere) introduced the need for a closer examination of the stresses andeformations In regions such as the sphere to cylindrical skirt connection and in the vicinity of lugs and various other attachments to the shell. The variety and relative complexity of the design problems encountered call for a flexible method capable of application to stress and deformation analysis over a wide field. A. S. Tooth and J. D. W. Hossack
The place of mathematics in the profession of engineering science, and engineering design, comes under review from time to time. The most notable contribution of recent years, to this important topic was made by Sir Charles Inglis in a lecture1 to the Institution of Civil Engineers in December, 1947. His title was a broad one - "Mathematics in relation to engineering" - but that title was abundantly justified by the breadth of his exposition and the illumination of his insight. In this more detailed discussion, of the mathematical needs of a special class of engineers, the field is still very wide and some of the conclusions-if the discussion leads to any conclusions- may be of general interest and application. E. H. Bateman
This month's letters include discussion over design checks and suitably experienced engineers as well as seismic design of masonry and more.