Applied Mathematics and Mechanics

, Volume 24, Issue 4, pp 414–420 | Cite as

Nonlinear bending of corrugated diaphragm with large boundary corrugation under compound load

  • Yuan Hong
  • Liu Ren-huai


By using the simplified Reissner's equation of axisymmetric shells of revolution, the nonlinear bending of a corrugated annular plate with a large boundary corrugation and a nondeformable rigid body at the center under compound load are investigated. The nonlinear boundary value problem of the corrugated diaphragm reduces to the nonlinear integral equations by applying the method of Green's function. To solve the integral equations, a so-called interpolated parameter important to prevent divergence is introduced into the iterative format. Computation shows that when loads are small, any value of interpolated parameter can assure the convergence of iteration. Interpolated parameter equal or almost equal to 1 yields a faster convergence rate; when loads are large, interpolated parameter cannot be taken too large in order to assure convergence The characteristic curves of the corrugated diaphragm for different load combinations are given. The obtained characteristic curves are available for reference to design. It can be concluded that the deflection is larger when the diaphragm is acted by both uniform load and concentrated load than when it is acted only by uniform load. The solution method can be applied to corrugated shells of arbitrary diametral sections.

Key words

corrugated diaphragm large boundary corrugation nonlinear bending elastic characteristic annular plate 

Chinese Library Classification


2000 MR Subject Classification



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Copyright information

© Editorial Committee of Applied Mathematics and Mechanics 2003

Authors and Affiliations

  • Yuan Hong
    • 1
  • Liu Ren-huai
    • 2
  1. 1.Faculty of ConstructionGuangdong University of TechnologyGuangzhouP. R. China
  2. 2.Institute of Applied MechanicsJinan UniversityGuangzhouP. R. China

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