No additional stress analysis due to other, e.g., perturbation, loads is involved. The chapters have been completely rewritten, emphasizing the general view of. We emphasise that the application of these methods requires only one stress analysis : that of tile continuous structure under the same external loads, as the modified structure. Presents the subject of advanced structural analysis in a wider perspective. The theory is illustrated on some simple examples which show clearly the extreme simplicity of the powerful techniques (b) and (c). 1, is, in fact, a generalisation of the cut-out method (b) and gives the stresses in the modified system solely in terms of the stresses of the original system subject to the same loads and temperature distribution. In this procedure the stresses in a structure with cut-outs are derived from the simpler analysis of the corresponding structure without cut-outs under the same loads and/or temperature distribution (c) to present a method for the determination of the stresses in a structure, some of whose components have been modified subsequent to an initial stress analysis. 1 and to present also some new applications of the general theory (b) to establish and illustrate on simple examples the special method of cut-outs developed in Ref. Unlike the conventional matrix method of structural analysis based on the Euler-Bernoulli beam theory, the Hencky bar-chain model (HBM) matrix method allows.
Summary.-The purpose of this paper is : (a) to summarise the basic principles of the matrix force method of structural analysis given in Ref.
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