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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 41
ADVANCES IN THE ANALYSIS AND DESIGN OF COMPOSITES
Edited by: B.H.V. Topping
Paper V.2

Stresses and Displacements in Repaired Plates Made out of Composite Materials

C. Katzenschwanz

Institute of Aerospace Engineering, Technical University of Munich, Munich, Germany

Full Bibliographic Reference for this paper
C. Katzenschwanz, "Stresses and Displacements in Repaired Plates Made out of Composite Materials", in B.H.V. Topping, (Editor), "Advances in the Analysis and Design of Composites", Civil-Comp Press, Edinburgh, UK, pp 91-100, 1996. doi:10.4203/ccp.41.5.2
Abstract
A method for the prediction of the stresses and displacements in repaired plates made out of anisotropic composite materials is developed. The plate can be loaded either by in-plane loadings or bending loadings. The repaired area is divided into an elliptic inclusion, several elliptic rings and an infinite plate with an elliptic opening. For these areas stress functions are defined. The equilibrium equations and the continuity equations along the boundaries result in a set of equations with which it is possible to determine the coefficients of the stress function. The method described provides good correspondence with finite-element-simulations by less time for modelling the repaired area. Therefore it is possible to optimise the repair in order to get small stress concentrations.

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