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By Richard H Gallagher; Rattinger Ivan.; John S Archer; North Atlantic Treaty Organization. Advisory Group for Aeronautical Research and Development. Structures and Materials Panel

ISBN-10: 1483198642

ISBN-13: 9781483198644

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Extra info for A correlation study of methods of matrix structural analysis : report to the 14th Meeting, Paris, France, July 6, 1962

Example text

Using Eq. (33), the entire set of stiffness coefficients for the swept plate under linear edge displacements has been derived in an explicit (algebraic) form. The set is shown in Fig. 5 and will be employed in analyses discussed in Chapter 4, Section B, 5. Argyris has presented an illustrative application of the unit displacement theorem in Ref. 8, where he derived the stiffness matrix for the rectangular plate in direct stress under the assumption of linear edge displacements. There, by observation rather than through an inversion of the pertinent [B] matrix, he was immediately able to establish the necessary equations for stress and strain.

METHODS OF M A T R I X S T R U C T U R A L ANALYSIS point stress and strains. First, as stated in the preceding section, the relationships connecting the constants au . . ■ = "1 0 y 0 0 0 0 0 0 0 0 1 L0 l (-%\ 0 1 0 24 (,_|V) o ■la2y (21a) DISCRETE ELEMENT PROPERTIES We note that the above matrix contains the variables x andjy.

It is of interest to review past evaluations of multiweb wing idealization since these will provide a basis for what follows. Probably the first independent extensive evaluation of idealizations proposed for the matrix analysis of multiweb wings was accomplished in Ref. 6; this work has also been summarized in a report to the AGARD Structures and Materials Panel (Ref. 5) and in Ref. 7. A group ôf ten multiweb wing structures, representing an ordered variation of significant geometric parameters, had been tested for deflection influence coefficients.

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A correlation study of methods of matrix structural analysis : report to the 14th Meeting, Paris, France, July 6, 1962 by Richard H Gallagher; Rattinger Ivan.; John S Archer; North Atlantic Treaty Organization. Advisory Group for Aeronautical Research and Development. Structures and Materials Panel


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