In recent years, the number of lightweight parts made of high-strength aluminium alloys and advanced high strength steels (AHHS) has increased fivefold to further enhance engine efficiency and reduce CO2 emissions in automotive sector. Furthermore, lightweight assemblies increasingly utilize dissimilar structures combining both AHSS and high-strength aluminium alloys.
Widespread in automotive industry fusion method of resistance spot welding (RSW) triggers notable alterations in resolidified...
The integration of additive manufacturing, specifically Laser Powder Bed Fusion (LPBF)
with Aluminium alloys, represents promising opportunities for industries such as automotive
and aerospace, where components with complex designs and optimal strength-to-weight ratios
are crucial. However, the industrial reliability of LPBF technology is limited by the complex
and not fully understood process-structure-property relationship in the scope of fabrication.
This thesis experimentally ex...
L'attuale patrimonio edilizio europeo sta subendo un processo di invecchiamento che richiede sforzi di rinnovamento significativi per migliorarne le prestazioni energe-tiche e garantire la sicurezza strutturale. La maggior parte degli edifici esistenti non è conforme agli attuali standard edilizi, in quando la sua costruzione è antecedente all’entrata in vigore di normative che tenessero in considerazione aspetti quali effi-cienza energetica e sicurezza nei confronti dell’azione sismica. Nel ...
Negli ultimi anni, l'agricoltura di precisione (AP) ha suscitato un notevole interesse grazie ai suoi sostanziali vantaggi agronomici. Al cuore dell'AP vi sono le tecnologie di rilevamento avanzate, che offrono soluzioni di rilevamento rapide, convenienti ed indipendenti dalle competenze. Tra queste tecnologie all'avanguardia vi sono i biosensori elettrochimici. Questi biosensori integrano biorilevatori come cellule viventi, aptameri, DNA, peptidi e antigeni all'interno di trasduttori elettro...
Lo sviluppo di attività costiere antropogeniche ha portato alla contaminazione dei sedimenti marini con sostanze pericolose, con gravi rischi per la salute e il benessere dell'uomo e dell'ambiente. È di fondamentale importanza sviluppare tecnologie sostenibili per il trattamento simultaneo di diversi contaminanti, fornendo una soluzione permanente per ridurre la pericolosità dei sedimenti negli ambienti acquatici.
Recentemente, i nanomateriali stanno guadagnando terreno nel settore della bo...
The timely detection and diagnosis of faults are crucial for maintaining the safety and reliability of industrial systems, as they help prevent severe damage and unexpected disruptions in operations. In pursuit of this objective, learning-based approaches have emerged as powerful tools, harnessing various machine learning techniques to detect potential faults and diagnose their root causes in the systems under study. This thesis delves into the application and advancement of machine learning ...
The purpose of this work is to develop and test an accurate and efficient tool for computing three-dimensional complex flows past fixed or moving geometries, for a wide range of Reynolds and Mach numbers.
Firstly, an accurate and efficient Immersed-Boundary (IB) method, using a state-of-the-art Unsteady Reynolds-Averaged Navier–Stokes (URANS) parallel Cartesian solver, has been improved, by means of a new IB treatment, extended to three space dimensions,
and validated versus several test c...
The research carried out and presented here belongs to the field of studies in which the analysis of images serves as a basis for understanding historical-artistic processes characterized by evolution, repetition, and contradiction. The central question that has critically and transversally guided this research has been: is it possible to conduct a study of architectural images based on the actual spatial and perceptual qualities of architecture itself? And if so, how do these images configur...
Intelligent Transportation Systems (ITS) are poised to transform the transportation landscape by enabling seamless integration of technologies, enhancing road safety, and optimizing traffic flow. To fully realize the potential of ITS, it is crucial to address the challenges of cybersecurity and sustainability. This thesis explores innovative approaches to integrate security measures and sustainability strategies into vehicular networks.
First, a comprehensive review of digital twin (DT) tec...
Residual stress assessment is a key factor in engineering design owing to its impact on engineering properties of materials and structural components. Improper management of residual stresses can result in distortion, reduced fatigue life, degraded corrosion resistance, brittle fracture, and even failure during component fabrication, especially with technologies such as welding and additive manufacturing. Therefore, in the context of sustained industrial development for producing advanced com...