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Structural Engineering and Mechanics
  Volume 8, Number 4, October 1999 , pages 421-438

Practical estimation of the plastic collapse limit of curved pipes subjected to complex loading
Yan AM, Nguyen DH, Gilles P

    In this paper a practical limit load estimating procedure is proposed for general pipe-elbow structures subjected to complex loading (in-plane and out-of-plane bending, internal pressure and axial force). The explicit calculating formulae are presented on the basis of theoretical analysis combined with numerical simulation. Von Mises\' yield criterion is adopted in both analytical and numerical calculation. The finite element examination shows that the method provides a simple but satisfactory prediction of pipe structures in engineering plastic analysis.
Key Words
    limit analysis, limit load, bending of curved pipe, pipe structures, elbow
Yan AM, Univ Liege, LTAS, Rue Ernest Solvay 21, B-4000 Liege, Belgium
Univ Liege, LTAS, B-4000 Liege, Belgium
Framatome, Paris, France

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