Messa a punto di metodi per la caratterizzazione meccanica in vitro di segmenti ossei

In the last decade, the mechanical characterization of bone segments has been seen as a fundamental key to understanding how the distribution of physiological loads works on the bone in everyday life, and the resulting structural deformations. Therefore, characterization allows to obtain the main load directions and, consequently, to observe the structural lamellae of the bone disposal, in order to recreate a prosthesis using artificial materials that behave naturally. This thesis will expose a modular system which provides the mechanical characterization of bone in vitro segment, with particular attention to vertebrae, as the current object of study and research in the lab where I did my thesis work. The system will be able to acquire and process all the appropriately conditioned signals of interest for the test, through dedicated hardware and software architecture, with high speed and high reliability. The aim of my thesis is to create a system that can be used as a versatile tool for experimentation and innovation for future tests of the mechanical characterization of biological components, allowing a quantitative and qualitative assessment of the deformation in analysis, regardless of anatomical regions of interest.

Steel and macro-synthetic self-compacting fibre reinforced concrete, experimental study on the long-term deformations

Experimental study on the long-term deformations of the fibre reinforced concrete. Steel and macro-synthetic fibers were used to evaluate the shrinkage, creep, mid-span deflection, cracking and rupture analysis of three different types of samples. At the end the main topics of ACI guidelines were analyzed in order to perform an overview of design.