A5078035609- Ultrasonics and Acoustic Wave Propagation
- Structural Health Monitoring Techniques
- Non-Destructive Testing Techniques
- Geophysical Methods and Applications
- Thermography and Photoacoustic Techniques
- Smart Materials for Construction
- Mechanical Behavior of Composites
- Composite Structure Analysis and Optimization
- Acoustic Wave Phenomena Research
- Aeroelasticity and Vibration Control
- Magnetic Properties and Applications
- Material Properties and Applications
- Advanced Sensor Technologies Research
- Hydraulic and Pneumatic Systems
- Structural Analysis of Composite Materials
- Advanced Fiber Optic Sensors
- Sensor Technology and Measurement Systems
- Vehicle Noise and Vibration Control
- Fault Detection and Control Systems
- Optical measurement and interference techniques
- Fatigue and fracture mechanics
- Advanced Measurement and Detection Methods
- Railway Engineering and Dynamics
- Arctic and Antarctic ice dynamics
- Icing and De-icing Technologies
University of Naples Federico II
2015-2024
Ingegneria dei Trasporti (Italy)
2018-2023
Federico II University Hospital
2022
Engineering Software Steyr (Austria)
2022
Universidad de Sonora
2012
Adams Business Associates (United Kingdom)
1996
Performances are a key concern in aerospace vehicles, requiring safer structures with as little consumption possible. Composite materials replaced aluminum alloys even primary to achieve higher performances lighter components. However, random events such low-velocity impacts may induce damages that typically more dangerous and mostly not visible than metals. The damage tolerance (DT) approach is adopted for the fatigue design of aircraft, but fracture mechanisms propagation failure...
Structural health monitoring (SHM) based on guided waves allows assessing the of a structure due to sensitivity occurrence delamination. However, wave propagation presents several complexities for effective damage identification in composite structures. An efficient implementation wave-based SHM system requires an accurate analysis collected data obtain useful detection. This paper is concerned with small emerging delaminations structural components using sparse array surface ultrasonic...
The integrity of safety-critical structural composites can be enhanced by the use innovative ultrasonic nondestructive evaluation techniques. Among various existing techniques, guided wave methods provide a good promise in terms sensitivity to variety damage types or defects and extent area that monitored, given ability these waves travel relatively long distances within structure under investigation. In comparison with isotropic metallic structures, propagation composite structures presents...
Aerospace vehicles are demanded to withstand harsh conditions with a low weight impact. Composites have been increasingly adopted meet such performances but they affected by sudden and barely visible failures when subjected velocity impacts. The design criteria the maintenance tasks in damage tolerant approach unavoidably compromised. Structural Health Monitoring is expected avoid typical accommodations employed during lifetime management achieving cost-effective on condition maintenance....
Abstract The development of adaptive morphing wings has been individuated as one the crucial topics in greening next generation air transport. Research programs are currently running worldwide to exploit potentiality concepts optimisation aircraft efficiency and consequent reduction fuel burn. Among these, SARISTU represents largest European funded research project which ambitiously addresses challenges posed by physical integration smart real structures; for first time ever, will...
Multi-layered composites are frequently used in many applications as constructional materials. Such materials represent a difficult inspection task for some traditional techniques of non-destructive testing (NDT). Typical defects composite delaminations, lack adhesion and crumpling, just to name few. IR thermography ultrasonics typically considered candidate detect different types defects. In order assess the potential usefulness both methods, laminate with polytetrafluoroethylene disk...
This study is concerned with the detection and characterization of impact damage in a stiffened woven composite structure using high frequency Lamb waves low modal vibrations. The geometric material complexities present practical difficulties direct analysis both wave propagation vibration data theoretical constructs. Improved ultrasonic test setups consisting distributed, fidelity, surface mounted sensor arrays are used here to determine changes dynamical properties structural components...
Structural Health Monitoring (SHM) based on guided waves (GWs) is responsive to damage occurrences allowing the assessment of composites integrity. However, online monitoring quite complex due a wide range parameters affecting wave propagation and consequently diagnostic outputs. A useful implementation GW-based condition requires an accurate analysis reconstruction algorithm collected data as well. In view more effective detection impact induced damages in using sparse array sensors,...
Guided wave (GW) Structural Health Monitoring (SHM) allows to assess the health of aerostructures thanks great sensitivity delamination and/or debondings appearance. Due several complexities affecting propagation in composites, an efficient GW SHM system requires its effective quantification associated a rigorous statistical evaluation procedure. Probability Detection (POD) approach is commonly accepted measurement method quantify NDI results and it can be effectively extended context....
A quasi-isotropic composite laminate is constructed in an attempt to create a structure that behaves like isotropic plate. Its membrane behavior similar of the plate while bending quite different from latter. Moreover, laminae may or not be arranged symmetrically with respect midplane thereby resulting mechanical response. In this work, guided wave propagation along multiple directions symmetric and plates evaluated. Experimental numerical results for fundamental modes 0 S are analyzed...
Composite structures widely used in advanced sectors as the automotive and aeronautical fields, during their useful life are usually subject to dynamic events responsible for apparently invisible failures which, over time, severely compromise performance. In this regard, a huge amount of experimental results, also validated by theoretical considerations, is available on behaviour damage caused low velocity impacts (LVI) laminate systems polymeric composite residual strength. However, until...
This article reports on the creation of an open database piezo-actuated and piezo-received guided wave signals propagating in a composite panel full-scale aeronautical structure. The closes bottom part wingbox that, along with leading edge, trailing wingtip, forms outer wing demonstrator approximately 4.5 m long from 1.2 to 2.3 wide. To create database, structural health monitoring system, composed software/hardware central unit capable controlling network 160 piezoelectric transducers...
Maintenance approaches based on sensorised structures and Structural Health Monitoring systems could represent one of the most promising innovations in fields aerostructures since many years, mostly when composites materials (fibers reinforced resins) are considered. Layered still suffer today drastic reductions maximum allowable stress values during design phase as well costly recurrent inspections life cycle that don't permit completely exploit their structural economic potentialities...
Structural health monitoring (SHM) based on guided waves (GW) shows great sensitivity to the appearance of damage allowing assess structural integrity. However, due complexities GW propagation in composite components and its measurement instrumentation technique, a useful implementation GW-based system requires an accurate analysis reconstruction methodology collected data as well. This paper deals with experimental characterization previously proposed SHM for identification small emerging...