The stability of columns made of quasi-brittle materials, subjected to an eccentric axial force, is investigated in this study, on the assumption that the base section is notched. As a matter of fact, looking at historical structures, there is a large number of columns made of quasi-brittle materials (stones and bricks), exhibiting cracks or indentations in their lowest regions, that are the most exposed to possible impacts or to various sources of damage. Moreover, since columns are often slender, their stability may be a relevant issue, and methods for analysing simultaneously stability and fracture are necessary. Stability analysis of notched slender columns is studied here by means of an approximate analytical model, which is based on the use of R-curves and provides an intuitive understanding of the structural behaviour.
Notched columns made of quasi-brittle materials: stability analysis by means of R-curves
FENU, LUIGI
2009-01-01
Abstract
The stability of columns made of quasi-brittle materials, subjected to an eccentric axial force, is investigated in this study, on the assumption that the base section is notched. As a matter of fact, looking at historical structures, there is a large number of columns made of quasi-brittle materials (stones and bricks), exhibiting cracks or indentations in their lowest regions, that are the most exposed to possible impacts or to various sources of damage. Moreover, since columns are often slender, their stability may be a relevant issue, and methods for analysing simultaneously stability and fracture are necessary. Stability analysis of notched slender columns is studied here by means of an approximate analytical model, which is based on the use of R-curves and provides an intuitive understanding of the structural behaviour.
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