Search results for "Paz"
showing 10 items of 1302 documents
A computational aeroelastic framework based on high-order structural models and high-fidelity aerodynamics
2023
A computational framework for high-fidelity static aeroelastic analysis is presented. Aeroelastic analysis traditionally employs a beam stick representation for the structure and potential, inviscid and irrotational flow assumptions for the aerodynamics. The unique contribution of this work is the introduction of a high-order structural formulation coupled with a high-fidelity method for the aerodynamics. In more details, the Carrera Unified Formulation coupled with the Finite Element Method is implemented to model geometrically complex composite, laminated structures as equivalent bi-dimensional plates. The open-source software SU2 is then used for the solution of the aerodynamic fields. T…
The effect of through-thickness compressive stress on mode II interlaminar fracture toughness
2017
Abstract The effect of through-thickness compressive stress on mode II interlaminar fracture toughness is investigated experimentally and replicated numerically. The modified Transverse Crack Tensile specimen recently proposed by the authors is used, together with an experimental device designed to apply a constant transverse compressive stress on the surface of the specimen. Experiments are conducted using IM7/8552 specimens for different compressive stresses, ranging from 0 to 100 MPa, covering all the practical applications commonly encountered in the aeronautical industry (e.g., tightened filled holes or bolted joints). It is shown that mode II interlaminar fracture toughness increases …
A hybrid virtual–boundary element formulation for heterogeneous materials
2021
Abstract In this work, a hybrid formulation based on the conjoined use of the recently developed Virtual Element Method (VEM) and the Boundary Element Method (BEM) is proposed for the effective computational analysis of multi-region domains, representative of heterogeneous materials. VEM has been recently developed as a generalisation of the Finite Element Method (FEM) and it allows the straightforward employment of elements of general polygonal shape, maintaining a high level of accuracy. For its inherent features, it allows the use of meshes of general topology, including non-convex elements. On the other hand, BEM is an effective technique for the numerical solution of sets of boundary i…
Computational Homogenization of Heterogeneous Materials by a Novel Hybrid Numerical Scheme
2020
The Virtual Element Method (VEM) is a recent numerical technique capable of dealing with very general polygonal and polyhedral mesh elements, including irregular or non-convex ones. Because of this feature, the VEM ensures noticeable simplification in the data preparation stage of the analysis, especially for problems whose analysis domain features complex geometries, as in the case of computational micro-mechanics problems. The Boundary Element Method (BEM) is a well known, extensively used and effective numerical technique for the solution of several classes of problems in science and engineering. Due to its underlying formulation, the BEM allows reducing the dimensionality of the proble…
Il Centro Tau nella Comunità Educante
2022
L’Associazione “Inventare Insieme (onlus)”, anche grazie all’attivazione dell’officina di promozione socio-culturale “Centro Tau”, ha agito nel passato e nel presente e continua ad agire in un’area della città nella quale il cambia- mento innescato attraverso la concatenazione tra diverse azioni portate avanti da esperti, collaboratori, dipendenti, volontari, comincia ad essere visibile. È pur vero che parlare di cambiamento senza incorrere nei rischi di una sovra-rappresentazione della realtà o di una sua strumentalizzazione è sempre difficile. Pertanto, fermo restando che il cambiamento necessita non soltanto di tempi, ma anche di cornici, si farà riferimento, in questo contesto, alla com…
Ganar la Paz
1999
Partecipazione digitale: strumenti, scenari, potenzialità
2013
La costruzione dell’immagine collettiva dello spazio è alla base del senso di appartenenza e di identità che costituisce una parte essenziale della cultura urbana. Esso è fondamentale per lo sviluppo di un’adeguata coscienza civica e per l’attivazione di processi partecipativi effettivamente validi ed efficaci. La diffusione delle nuove tecnologie informatiche, accessibili anche ad utenti non specializzati, apre una serie molteplice di scenari in cui lo scambio e la condivisione, nonché la co-produzione dell’informazione georeferenziata, costituiscono un’opportunità di interazione tra abitanti di un territorio e decisori politici ed istituzionali. Certamente lo studio sistematico di iniziat…