A5007992442- Carbon Nanotubes in Composites
- Nanotechnology research and applications
- Thermography and Photoacoustic Techniques
- Graphene research and applications
- Ultrasonics and Acoustic Wave Propagation
- Force Microscopy Techniques and Applications
- Composite Structure Analysis and Optimization
- Non-Destructive Testing Techniques
- Smart Materials for Construction
- Boron and Carbon Nanomaterials Research
- Fiber-reinforced polymer composites
- Mechanical and Optical Resonators
- Additive Manufacturing and 3D Printing Technologies
- Structural Analysis of Composite Materials
- Natural Fiber Reinforced Composites
- Mechanical Behavior of Composites
- Innovations in Concrete and Construction Materials
- Aeroelasticity and Vibration Control
- Structural Analysis and Optimization
- Composite Material Mechanics
- Welding Techniques and Residual Stresses
- Geophysical Methods and Applications
- Material Properties and Applications
- Adhesion, Friction, and Surface Interactions
- Vibration and Dynamic Analysis
University of Palermo
2013-2025
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2018
Massachusetts Institute of Technology
2003-2007
Engineering (Italy)
2006
Space (Italy)
2006
Michigan State University
2002-2004
A nonlinear structural mechanics based approach for modeling the structure and deformation of single-wall multiwall carbon nanotubes (CNTs) is presented. Individual tubes are modeled using shell finite elements, where a specific pairing elastic properties mechanical thickness tube wall identified to enable successful with theory. The effects van der Waals forces simulated special interaction elements. This new CNT verified by comparison molecular dynamics simulations high-resolution...
A recently developed procedure for modeling the deformation of single and multi-wall carbon nanotubes [13,14] is applied to nanotube buckling post-buckling under axial compression. Critical features model, which grounded in elastic shell theory, include identification (a) an appropriate modulus thickness pair matching both wall stretching bending resistances atomic layer walls, (b) a sufficiently stiff interwall van der Waals potential preserve spacing locally buckled MWNTs, as...
Abstract The peak stress method (PSM) is an engineering, finite element (FE)‐oriented to rapidly estimate the notch intensity factors by using singular linear elastic stresses calculated from coarse FE analyses. average size adopted generate mesh pattern can be chosen arbitrarily within a given range. Originally, PSM has been calibrated under pure mode I and II loadings means of Ansys software. In present contribution, round robin between 10 Italian universities carried out calibrate with 7...
Abstract The peak stress method (PSM) allows a rapid application of the notch intensity factor (NSIF) approach to fatigue life assessment welded structures, by employing linear elastic stresses evaluated FE analyses with coarse meshes. Because widespread adoption 3D modeling large and complex structures in industry, PSM has recently been boosted including four‐node ten‐node tetrahedral elements Ansys software, which discretize geometries. In this paper, Round Robin among eleven Italian...
A large majority of thrombi causing ischemic complications under atrial fibrillation (AF) originate in the left appendage (LAA), an anatomical structure departing from atrium, characterized by a morphological variability between individuals. This work analyses hemodynamics simulated for different patient-specific models LAA means computational fluid-structure interaction studies, modeling effect changes contractility and shape resulting AF.Three operating conditions were analyzed: sinus...
Natural armors found in animals like fish and armadillos offer inspiration for designing protective systems that balance puncture resistance flexibility. Although segmented have been used historically, modern applications are hindered by a limited understanding of their mechanics. This study addresses these challenges presenting two novel bio-inspired scale structures with overlapping staggered configurations, modeled after the elasmoid designs fish. Their shapes differ significantly from...
In this study, the magnetic signatures of ship structures were investigated. The signature impacts both navigation safety and health marine ecosystem. Reducing is essential for minimising risks associated with protecting biodiversity. A finite element model was developed to assess honeycomb sandwich panels structures. theoretical approach proposed, predicted results compared values obtained by analyses. Different types evaluate combined effect materials geometry on signature. predictions...
For human welfare, electrical power is necessary. many years, there has been a great deal of interest in wind energy because it clean, sustainable source. Because its cheaper cost and independence from direction, the Savonius vertical axis rotor advantage being suitable for certain implementations as an converter. Several studies have carried out to increase efficiency. In this paper, novel blade design twisted investigated numerically with intention performance betterment. Three-dimensional...
The use of natural fiber-based composites is on the rise in many industries. Thanks to their eco-sustainability, these innovative materials make it possible adapt production components, systems and machines increasingly stringent regulations environmental protection, while at same time reducing costs, weight operating costs. Optimizing mechanical properties biocomposites an important goal applied research. In this work, using a new numerical approach, effects volume fraction, average length,...
Although several works have been recently published in literature about biocomposites, i.e. on innovative and ecofriendly polymer matrix composites reinforced by natural fibers, there are not studies the influence of waviness that various fiber present after their extraction. In order to give a contribution knowledge effects main mechanical properties as longitudinal Young modulus, study systematic numerical analysis has carried out using parametric models properly developed, let user...
Biocomposites are increasingly used in the industry for replacement of synthetic materials, thanks to their good mechanical properties, being lightweight, and having low cost. Unfortunately, several potential fields structural application static strength fatigue life not high enough. For this reason, chemical treatments on fibers have been proposed literature, although still without fully satisfactory results. To overcome drawback, study we present a procedure based addition carbonaceous...