Basic methods of the sensitivity analysis applicable in combination with numerical Monte Carlo type simulation methods are presented in the paper. An example of the influence of a plane steel fame initial imperfections on its load-carrying capacity variability is given there. It is shown in this paper that basic sensitivity analysis methods can be inaccurate in some cases. The updated modification of the procedures mentioned is proposed so that it were possible to apply them to the most various structure types solved by means of simulation methods. The influence of initial imperfections on the load-carrying capacity of steel plane frame is analysed by auxiliary sensitivity analysis. The realisations of input random quantities were simulated by the Latin Hypercube Sampling method. The load-carrying capacity was solved by geometrically and materially nonlinear solution. and Obsahuje seznam literatury
Buckling and postbuckling behaviour of a delaminated plate subjected to shear loading has been studied by means of the finite element analysis. The plate was assumed to contain either one or two circular delamintions of various diameteers and of various out-of-plane and in-plane positions. The size of the plate corresponded to the size of laminate panels used in aircraft structures. It was therefore possible to assess the practical applicability of numerous studies which focused on the buckling behaviour of substantially smaller plates. and Obsahuje seznam literatury
Buckling behaviour of a small delaminated plate subjected to compression loading has been studied by means of the finite element analysis. The study shows several trends in the effect of number, orientation and through-the-thickness position of delaminations upon the buckling response. These findings could be used for evaluation of reliability of laminate structures which might be subjected to impact loading, such as aircraft structures. and Obsahuje seznam literatury