More broadly, the analysis tool is shown to be capable of capturing the critical damage mechanisms leading to structural collapse of stiffened composite structures in the postbuckling region.
With the changing political climate around the world highlighted by the events of September 11th , 2001 researchers have begun to further study the mechanisms of fire induced structural collapse of steel building structures.
The effects of several key structural parameters on crashworthiness characteristics and collapse mechanism were first explored through the experiments here.
The analysis of submarine pressure hull assumes great importance among structural engineers due to the complexity involved in the collapse mechanism of stiffened shell structures.
One of the most relevant mechanisms that contribute to the loss of stiffness and to the structural collapse of composite structures is delamination.
This paper presents the analysis performed for each solution and the discussion regarding its qualitatively and quantitatively effects in the seismic structural behaviour: the identification of the expected collapse mechanism after strengthening and the seismic intensity for which it occurs.
It is important to note that, since the structural load-carrying capacity strongly depends on the location of the damaged area, the progressive collapse mechanism of a structure could change substantially under different damage conditions.
RC structures damaged by reinforcement corrosion can exhibit not only reduction of the bearing capacity but also an alteration of the collapse mechanism with a reduction of the structural ductility.
However, another proposed mechanism of diffusion loss, which involves structural collapse and the loss of porosity in the CCLs due to carbon corrosion did not occur in the present study.
Following the incident, a site investigation has been conducted to inspect the structural failures and a numerical 3D model to represent the whole structure was developed using OpenSEES to understand the collapse mechanism of the hail protection canopies.
Such theory has been originally developed with reference to moment resisting steel frames and gradually extended to other seismic resistant structural typologies aiming to the assure, in all cases, a collapse mechanism of global type.
