1,713 research outputs found
Examen de quelques passages du Pro Milone
No full textCahen R. Examen de quelques passages du Pro Milone. In: Revue des Études Anciennes. Tome 25, 1923, n°2. pp. 119-138
Examen de quelques passages du Pro Milone (Suite et fin)
No full textCahen R. Examen de quelques passages du Pro Milone (Suite et fin). In: Revue des Études Anciennes. Tome 25, 1923, n°3. pp. 215-233
Influenza della modellazione nell’analisi strutturale di un cassone da ponte
No full textIn questo lavoro è descritto come differenti modellazioni di una stessa struttura possono far corrispondere differenti risultati in termini sollecitazioni. L’utilizzo di ipotesi semplificative, tipiche di modelli semplificati e di corrente uso, possono portare, a volte, ad errori non trascurabili. La scelta del tipo di modellazione di una è un processo critico che deve tener conto sia delle caratteristiche geometriche che del tipo di carico, ma anche dei tempi macchina e della facilità di interpretazione dei risultati di output
A Simplified Approach for the Corrosion Fatigue Assessment of Steel Structures in Aggressive Environments
No full text: Fatigue performance is often a key aspect when dealing with existing steel structures such as steel bridges or offshore constructions. This issue proves to be more critical as these structures are usually located in aggressive environments and are thus exposed to progressive degradation. Indeed, disruptive phenomena such as corrosion can severely worsen the fatigue performance of the steel components. Currently, the normative standards do not provide a codified procedure for the fatigue checks of steel structures subjected to ongoing corrosion. Within this framework, in this paper a simplified approach for the life-cycle assessment of corroded steel structures is proposed. For this purpose, the concept of "critical corrosion degree" is introduced, allowing the expression of corrosion fatigue checks in a more direct "demand vs. capacity" form with respect to the currently available methods. A first validation of such methodology is reported for the corrosion fatigue tests drawn from the literature. The predicted levels of critical corrosion are in good agreement with the values of artificially induced corrosion (i.e., 4, 8, and 12% of mass loss, respectively), with a maximum relative error of ≈9.3% for the most corroded specimen. Finally, parametrical analyses are performed, highlighting the influence of the model parameters on the corrosion fatigue performance of the steel elements
- …
