axisymmetric problem
4.Based on this, the complex constraint method has been used to get the buckling load for the whole axisymmetric shell by solving the eigenvalue problem for only one substructure without introducing any additional approximation.
5.In this paper, inversion equation is derived by the variation principle and nonlinear integral equation, then the Born Iterative Method (BIM) is applied to deal with the nonlinear inversion problem of the conductivity distribution in a two-dimensional axisymmetric medium.
6.On the basis of the above ways, the thesis first present MQM with the high accuracy for solving BIE of the first kind of Laplace equation, Stokes equation, biharmonic equation, Steklov eigenvalue problem, elasticity equation, nonlinear boundary value problem and three-dimensional axisymmetric problems and so on in scientific and engineering problems on nonsmooth domains.
7.4. The lower bound problem of shakedown relates to the axisymmetric structure with different bugs is investigated and the influence of bug characters on structure charring capacity and reliability is discussed too. It is so clear that the influence of bug form and load path is different because of the difference of bug form and load path.

