Measurement results showed that there was obvious cross section distortion in the cut stub columns after cutting, resulting in the large additional initial geometric imperfections along the length, which would affect the axial compressive ultimate strength and the fa.

Stability of a spherical dome with initial geometric imperfections is analyzed based on the nonlinear finite element method.

These parameters are initial geometric imperfection, residual stresses, width to thickness ratio and aspect ratio of the panels.

A simplified mechanical model of ultrahigh pillar with initial geometrical imperfections was established and the stability of the system was discussed by means of initial deflection function,the stress-strain relation of rock,the strain-curvature relation,static balance at elastic stage and at elastoplastic stage.

The initial deviations of the joint positions are the main initial geometrical imperfections that affect the stability behaviors of the long-span spatial structures.

Considering geometrical and material dual nonlinear nature, the ultimate bearing capacity of open stiffened plates with initial geometrical imperfections and residual stress is analyzed.

In second-order elastic analysis of the partially-braced steel frames, the initial geometric imperfections of overall frame as well as its individual member should not be neglected.

Details of the model including element type,mesh discretization,material model,boundary conditions,solution method,residual stresses and initial geometric imperfections are presented.

The whole computer simulation process for initial geometry defects affect ultimate bearing capacity of concrete-filled steel tubular arch bridges;

Influence of initial geometry defect on ultimate bearing capacity of CFST arch bridge;