The aim of this article is to expand the general approach flexible beam model consider tapered geometry and anisotropic properties by updating cross-sectional stiffness matrix. advantage that continuously variable cross-section, as well irregular axes on cross-sections, are considered simultaneously co-rotational method. Anisotropic isotropic cantilevered cases simulated. A static force or mome...

This work establishes a fine model reflecting the characteristics of immersed tube structures to study spatial mechanical variable cross section tunnels. Then, behavior pipe segments under differential deformation is explored, based on which we propose formula for estimating shear key force and analyze corresponding failure mechanism mode. Thus, critical points segment design are specified. The...

Crack identification is a very important issue in mechanical systems, because it is a damage that if develops may cause catastrophic failure. In the first part of this research, modal analysis of a multi-cracked variable cross-section beam is done using finite element method. Then, the obtained results are validated usingthe results of experimental modal analysis tests. In the next part, a nove...