On selection of Fourier series in analysis of geometric imperfections in cylindrical shells;

In second-order elastic analysis of the steel frames, the geometric imperfections of structural system and its individual member should not be neglected.

BSS mechanical analysis of influence from geometric imperfection in prestress-tension stage;

Finite Element Method (FEW is applied to research and analyse thedistribution of stresses in a sample casing under uniform external pressure, whichhas various initial geometric imperfections (ovality and eccentricity).

This paper introduces the functions of the system of structure diagnosing and security assessment for the metal structures of port machinery,emphasizes the principle of diagnosis for the loading capacity of compressed members with geometric imperfection,and illustrates the importance of its application to port.

The effects of geometrical imperfections on dynamic stability of arch structures

This paper investigated the dynamic stability of arch with the geometrical imperfection subject to the external excitation.

In this paper,the stress resultant-displacement equations are put forward through strict mathematical deduction in which the geometrical imperfection and second order effect are taken into account.

The refined plastic hinge method is used for modeling of the section plastification and both the notional force and the initially imperfect geometry of the frames obtained by an eigenvalue buckling analysis are used for modeling the geometrical imperfections.

Based on the conditions of engineering practices and the ranges of imperfections, the cylindrical shells are divided with partial arbitrary geometrical imperfections into several combinations within computating domains.

An all-round and deep research on the effects of the geometrical imperfections on the static and dynamic properties, stability of arch structures has been made in this paper.