Prof. Fabrizio Scarpa Profile

Prof. Fabrizio Scarpa

Professor of Smart Materials and Structures at Univ of Bristol

SPIE Involvement:

Author

Publications (33)

Proceedings Article | 18 April 2022 Presentation

Hybrid shape-memory, natural fibres bio-based composites for shape morphing and adaptive structures under environmental moisture and temperature actuation

Qinyu Li, Rujie Sun, Antoine Le Duigou, Jianglong Guo, Jonathan Rossiter, Liwe Liu, Jinsong Leng, Fabrizio Scarpa

Proceedings Volume PC12041, (2022) https://doi.org/10.1117/12.2613292

KEYWORDS: Composites, Temperature metrology, Structured optical fibers, Humidity, Robotics, Solids, Epoxies

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Proceedings Article | 26 April 2020 Presentation + Paper

Switching of amorphous silicon thin-film actuators for optically functional robotic devices

C. Gillespie, A. Marzo, F. Scarpa, J. Rossiter, A. Conn

Proceedings Volume 11375, 113751O (2020) https://doi.org/10.1117/12.2558175

KEYWORDS: Amorphous silicon, Actuators, Electrodes, Thin films, Plasma enhanced chemical vapor deposition, Glasses, Robotics, Composites, Resistance, Control systems

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Proceedings Article | 13 March 2019 Presentation + Paper

High-voltage photonic switching of dielectric elastomers with amorphous silicon thin-films

C. Gillespie, A. Marzo, F. Scarpa, J. Rossiter, A. Conn

Proceedings Volume 10966, 109661Z (2019) https://doi.org/10.1117/12.2514558

KEYWORDS: Amorphous silicon, Electrodes, Actuators, Resistance, Thin films, Switching, Dielectrics, Plasma enhanced chemical vapor deposition, Composites

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Proceedings Article | 5 April 2017 Presentation + Paper

Smart Kirigami open honeycombs in shape changing actuation and dynamics

R. Neville, F. Scarpa, J. Leng

Proceedings Volume 10170, 101701L (2017) https://doi.org/10.1117/12.2262294

KEYWORDS: Metamaterials, Composites, Shape memory polymers, Manufacturing, Modal analysis, Robotics, Smart structures, Prototyping, Switches, Beam shaping, Anisotropy, Inspection

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Proceedings Article | 13 May 2016 Paper

A highly sensitive pressure sensor using conductive composite elastomers with wavy structures

Rujie Sun, Xiao-Chong Zhang, Jonathan Rossiter, Fabrizio Scarpa

Proceedings Volume 9863, 98630Z (2016) https://doi.org/10.1117/12.2229775

KEYWORDS: Sensors, Resistance, Composites, Electrodes, Carbon nanotubes, Foam, Protactinium, Coating, Scanning electron microscopy, Interfaces

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Proceedings Article | 15 April 2016 Paper

Parametric study of wave propagation in hierarchical auxetic perforated metamaterials

K. Billon, M. Ouisse, E. Sadoulet-Reboul, F. Scarpa, M. Collet

Proceedings Volume 9799, 979906 (2016) https://doi.org/10.1117/12.2221895

KEYWORDS: Metamaterials, Wave propagation, Homogenization, Mechanics, Electroluminescent displays, Structural design, Composites, Acoustics, Smart structures, System integration

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Proceedings Article | 3 April 2015 Paper

Novel design of honeycombs using a seamless combination of auxetic and conventional cores toward phononic band gap engineering

Sushovan Mukherjee, Fabrizio Scarpa, S. Gopalakrishnan

Proceedings Volume 9434, 94340L (2015) https://doi.org/10.1117/12.2083780

KEYWORDS: Chemical elements, Wave propagation, Electroluminescent displays, Structural design, Aerospace engineering, Vibration control, Composites, Analytical research, Crystals, Neodymium

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Proceedings Article | 28 March 2012 Paper

Design of a deployable structure with shape memory polymers

Jonathan Rossiter, Fabrizio Scarpa, Kazuto Takashima, Peter Walters

Proceedings Volume 8342, 83420Y (2012) https://doi.org/10.1117/12.915476

KEYWORDS: Shape memory polymers, Actuators, Prototyping, Shape memory alloys, Medical devices, Smart materials, Composites, Glasses, Aerospace engineering, Structural engineering

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Proceedings Article | 27 March 2012 Paper

Macro composites with non-classical inclusions for vibration damping in wind turbine

Fabio Agnese, Fabrizio Scarpa

Proceedings Volume 8341, 834109 (2012) https://doi.org/10.1117/12.917310

KEYWORDS: Composites, Structured optical fibers, Wind energy, Epoxies, Homogenization, Aluminum, Manufacturing, Finite element methods, Transducers, Wind turbine technology

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Proceedings Article | 30 March 2011 Paper

Carbon nanotube heterojunctions: unusual deformations and mechanical vibration properties

F. Scarpa, J. Narojczyk, K. Wojciechowski, D. Inman

Proceedings Volume 7980, 798006 (2011) https://doi.org/10.1117/12.881914

KEYWORDS: Carbon nanotubes, Heterojunctions, Oxygen, Nanosensors, Biosensors, Sensors, Current controlled current source, Oscillators, Mechanics

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Proceedings Article | 12 April 2010 Paper

Damping capacity in shape memory alloy honeycomb structures

M-A. Boucher, C. Smith, F. Scarpa, W. Miller, M. Hassan

Proceedings Volume 7643, 764332 (2010) https://doi.org/10.1117/12.847604

KEYWORDS: Shape memory alloys, Finite element methods, Epoxies, Aluminum, Composites, Manufacturing, Adhesives, Chemical elements, Polymers, Control systems

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Proceedings Article | 31 March 2010 Paper

Wave propagation and structural dynamics in graphene nanoribbons

F. Scarpa, M. Ruzzene, S. Adhikari, R. Chowdhury

Proceedings Volume 7646, 76461A (2010) https://doi.org/10.1117/12.847016

KEYWORDS: Graphene, Wave propagation, Structural dynamics, Performance modeling, Nanosensors, Biosensors, Sensors, Current controlled current source, Nanostructures, Electronics

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Proceedings Article | 18 April 2008 Paper

Vibroacoustics and wave propagation of novel chiral honeycombs

Kong Fah Tee, Alessandro Spadoni, Fabrizio Scarpa, Massimo Ruzzene

Proceedings Volume 6928, 69280J (2008) https://doi.org/10.1117/12.776075

KEYWORDS: Wave propagation, Skin, Modal analysis, Manufacturing, Finite element methods, Solids, Acoustics, Aerospace engineering, Aluminum, Numerical analysis

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Proceedings Article | 10 April 2008 Paper

Sensing and actuation of smart chiral honeycombs

H. Abramovitch, M. Burgard, Lucy Edery-Azulay, K. Evans, M. Hoffmeister, W. Miller, F. Scarpa, C. Smith, K. Tee, A Schönecker, L Seffner

Proceedings Volume 6935, 693506 (2008) https://doi.org/10.1117/12.775588

KEYWORDS: Microsoft Foundation Class Library, Sensors, Structural health monitoring, Manufacturing, Fused deposition modeling, Rapid manufacturing, Prototyping, Acoustics, Actuators, Composites

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Proceedings Article | 10 April 2008 Paper

Lamb wave propagation in negative Poisson's ratio composites

Chrystel Remillat, Paul Wilcox, Fabrizio Scarpa

Proceedings Volume 6935, 69350C (2008) https://doi.org/10.1117/12.776022

KEYWORDS: Wave propagation, Composites, Phase velocity, Foam, Wave plates, 3D modeling, Tolerancing, Carbon, Aerospace engineering, Mechanical engineering

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Proceedings Article | 6 April 2006 Paper

Modeling and testing of shape memory alloy chiral honeycomb structures

F. Scarpa, M. Hassan, M. Ruzzene

Proceedings Volume 6170, 61700W (2006) https://doi.org/10.1117/12.658441

KEYWORDS: Shape memory alloys, Prototyping, Antennas, Manufacturing, Nickel, Copper, Solids, Aerospace engineering, Statistical analysis, Statistical modeling

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Proceedings Article | 17 March 2006 Paper

Dynamic behavior and damping capacity of auxetic foam pads

F. Scarpa, J. Giacomin, A. Bezazi, W. Bullough

Proceedings Volume 6169, 61690T (2006) https://doi.org/10.1117/12.658453

KEYWORDS: Foam, Manufacturing, Standards development, Solids, Polyurethane, Polymers, Resistance, Absorption, MATLAB, Calibration

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Proceedings Article | 17 May 2005 Paper

Chiral hexagonal cellular sandwich structures: dynamic response

A. Spadoni, M. Ruzzene, F. Scarpa

Proceedings Volume 5764, (2005) https://doi.org/10.1117/12.600021

KEYWORDS: Chemical elements, Motion models, Shape analysis, Systems modeling, Numerical simulations, Aluminum, Epoxies, Adhesives, Aerospace engineering, Solids

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Proceedings Article | 16 May 2005 Paper

Chiral hexagonal cellular sandwich structure: a vibro-acoustic assessment

Tze Lew, Alessandro Spadoni, Fabrizio Scarpa, Massimo Ruzzene

Proceedings Volume 5760, (2005) https://doi.org/10.1117/12.599606

KEYWORDS: Mirrors, Manufacturing, Composites, Solids, Aerospace engineering, Resistance, Finite element methods, MATLAB, Mechanical engineering, Absorption

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Proceedings Article | 29 July 2004 Paper

Auxetic magnetic foams for integrated mechanical-EM shielding sandwich applications

Fabrizio Scarpa, Frank Smith, William Bullough

Proceedings Volume 5391, (2004) https://doi.org/10.1117/12.557008

KEYWORDS: Foam, Electromagnetism, Magnetism, Coating, Polyurethane, Acoustics, Particles, Dielectrics, Free space, Fluid dynamics

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Proceedings Article | 21 July 2004 Paper

Spectral element formulation for SMA beams under random vibration excitation

Fabrizio Scarpa, Massimo Ruzzene, Mohammed Hassan

Proceedings Volume 5387, (2004) https://doi.org/10.1117/12.545968

KEYWORDS: Shape memory alloys, Chemical elements, Wave propagation, Fourier transforms, Solids, Aerospace engineering, Smart materials, Beryllium, Structural dynamics, Time-frequency analysis

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Proceedings Article | 21 July 2004 Paper

Shape memory alloys honeycomb: design and properties

Mohammed Hassan, Fabrizio Scarpa, Nik Abdullah Mohamed

Proceedings Volume 5387, (2004) https://doi.org/10.1117/12.555597

KEYWORDS: Shape memory alloys, Manufacturing, Smart materials, Statistical modeling, Metals, Solids, Mechanical engineering, Analytical research, Aerospace engineering, Antennas

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Proceedings Article | 13 August 2003 Paper

A general FEM technique to model wave propagation in cellular periodic structures

Massimo Ruzzene, Fabrizio Scarpa

Proceedings Volume 5053, (2003) https://doi.org/10.1117/12.498565

KEYWORDS: Wave propagation, Finite element methods, Chemical elements, Matrices, Solid modeling, Aerospace engineering, Antennas, Superposition, Solids, Solid state physics

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Proceedings Article | 1 August 2003 Paper

Novelty detection technique with SLV for identification of core properties in honeycombs and cellular solids

Fabrizio Scarpa, Graeme Manson, M. Ruzzene

Proceedings Volume 5046, (2003) https://doi.org/10.1117/12.488043

KEYWORDS: Solids, Mahalanobis distance, Finite element methods, Manufacturing, Signal detection, Statistical modeling, Data modeling, Performance modeling, 3D modeling, Aerospace engineering

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Proceedings Article | 31 July 2003 Paper

Identification of acoustic properties of auxetic foams

Fabrizio Scarpa, F. Dallocchio, M. Ruzzene

Proceedings Volume 5052, (2003) https://doi.org/10.1117/12.487559

KEYWORDS: Foam, Acoustics, Absorption, Manufacturing, Solids, Polyurethane, Signal attenuation, Signal detection, Packaging, Resistance

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Proceedings Article | 15 July 2002 Paper

Simultaneous optimization of the electromagnetic and mechanical properties of honeycomb materials

Frank Smith, Fabrizio Scarpa, G. Burriesci

Proceedings Volume 4701, (2002) https://doi.org/10.1117/12.474693

KEYWORDS: Electromagnetism, Dielectrics, Solids, Finite element methods, Radar, Anisotropy, Composites, 3D modeling, Aerospace engineering, Numerical simulations

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Proceedings Article | 27 June 2002 Paper

Improving the MSE method for viscoelastic damped structures

Fabrizio Scarpa, Francesco Landi, Jem Rongong, L. DeWitt, Geoffrey Tomlinson

Proceedings Volume 4697, (2002) https://doi.org/10.1117/12.472669

KEYWORDS: Chemical elements, Matrices, Finite element methods, Complex systems, Infrared imaging, Computing systems, Neodymium, Photonic integrated circuits, Smart materials, Imaging infrared seeker

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Proceedings Article | 27 June 2002 Paper

Control of vibration and wave propagation in sandwich plates with periodic auxetic core

Fabrizio Scarpa, Massimo Ruzzene, Luca Mazzarella, Panagiotis Tsopelas

Proceedings Volume 4697, (2002) https://doi.org/10.1117/12.472655

KEYWORDS: Wave propagation, Finite element methods, Signal attenuation, Wave plates, Vibration control, Control systems, Composites, Radio propagation, Solids, Motion analysis

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The wave propagation in and the vibration of sandwich plates with cellular core are analyzed and controlled. Negative Poisson's ratio (auxetic) core materials of different geometry placed periodically in the plate introduce the proper impedance mismatch necessary to obstruct the propagation of waves over specified frequency bands (stop bands) and in particular directions. The location and the extension of the stop bands and the directions of wave propagation can be modified by proper selection of the periodicity and of the geometrical and physical properties of the core. A Finite Element model is developed to predict the dynamic response of three-layered sandwich panels with honeycomb core. The Finite Element model along with the theory of periodic structures is used to evaluate the influence of core materials of different geometry placed periodically along the two dimensions of the structure. This combined analysis yields the phase constant surfaces for the considered sandwich plates, which define location and extension of the stop bands, as well as the directions of wave propagation at assigned frequency values. The analysis of the phase constant surfaces and the evaluation of the harmonic response at specified frequencies indicate that the plates are characterized by dynamic behaviors with directional properties, with spatial patterns strongly dependent on the configuration of the periodic core and on the excitation frequency. Auxetic honeycombs are considered as core materials in order to obtain maximum design flexibility. The elastic and inertial characteristics of auxetic honeycombs in fact vary substantially with their internal geometry and for given configurations outcast up to five times the corresponding properties of traditional hexagonal honeycombs. The presented numerical results demonstrate the unique characteristics of this class of two-dimensional periodic structures, which behave as directional mechanical filters. The findings of this study suggest that optimal configurations for the periodic cellular core can be identified in order to design passive composite panels, which are stable and quiet over desired frequency bands and which fit desired transmissibility levels in particular directions. Such unique filtering capabilities are achieved without requiring additional passive or active control devices and therefore without compromising the size and the weight of the layered structure.

Proceedings Article | 27 June 2002 Paper

Wave beaming effects in bidimensional cellular structures

Fabrizio Scarpa, Massimo Ruzzene, Francesco Soranna

Proceedings Volume 4697, (2002) https://doi.org/10.1117/12.472681

KEYWORDS: Wave propagation, Solids, Matrices, Signal attenuation, Finite element methods, Vibration isolation, Prototyping, Motion analysis, Mechanical engineering, Structural design

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Cellular structures like honeycombs or reticulated micro-frames are widely used in sandwich construction because of their superior structural static and dynamic properties. Aim of this study is to evaluate the dynamic behavior of bi-dimensional cellular structures, with focus on the effect of the geometry of the unit cell composing the solid on the dynamics of the propagation of elastic waves within the structure. The characteristics of wave propagation for the considered class of cellular solids are analyzed through the Finite Element model of the unit cell and the application of the theory of periodic structures. This combined analysis yields the phase constant surfaces, which define the directions of wave propagation in the plane of the structure for assigned frequency values. The analysis of iso-frequency contour lines in the phase constant surfaces allows predicting the location and extension of angular ranges, and therefore regions within the structures, where waves do not propagate. The performance of honeycomb grids of regular hexagonal topology is compared with that of grids of various geometries, with emphasis on configurations featuring a negative Poisson's ratio behavior. The harmonic response of the considered structures at specified frequencies confirms the predictions from the analysis of the phase constant surfaces and demonstrates the strongly spatial dependent characteristics of periodic cellular structures. The presented numerical results indicate the potentials of the phase constant surfaces as tools for the evaluation of the wave propagation characteristics of this class of two-dimensional periodic structures. Optimal design configurations can be identified in order to achieve desired transmissibility levels in specified directions and to obtain efficient vibration isolation capabilities. The findings from the presented investigations and the described analysis methodology will provide invaluable guidelines for the prototyping of future concepts of honeycombs or cellular structures with enhanced vibro-acoustics performance.

Proceedings Article | 2 July 2001 Paper

Control of wave propagation in sandwich beams with auxetic core

Massimo Ruzzene, Fabrizio Scarpa

Proceedings Volume 4331, (2001) https://doi.org/10.1117/12.432728

KEYWORDS: Wave propagation, Solids, Finite element methods, Beam propagation method, Chemical elements, Signal attenuation, Composites, Solid modeling, Mechanical engineering, Control systems

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Proceedings Article | 27 April 2000 Paper

Damping modelization of auxetic foams

Fabrizio Scarpa, Chrystel Remillat, Francesco Landi, Geoffrey Tomlinson

Proceedings Volume 3989, (2000) https://doi.org/10.1117/12.384574

KEYWORDS: Foam, Composites, Solids, Finite element methods, Statistical modeling, Resistance, Optical simulations, Solid modeling, Acoustics, Manufacturing

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Proceedings Article | 2 June 1999 Paper

Microstructural modelization of viscoelastic auxetic polymers

Fabrizio Scarpa, Chrystel Remillat, Geoffrey Tomlinson

Proceedings Volume 3672, (1999) https://doi.org/10.1117/12.349791

KEYWORDS: Finite element methods, Polymers, Foam, Resistance, Chemical elements, Absorption, Tolerancing, Homogenization, Photography, Commercial off the shelf technology

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Proceedings Article | 16 June 1998 Paper

Vibroacoustics and damping analysis of negative Poisson's ratio honeycombs

Fabrizio Scarpa, Geoffrey Tomlinson

Proceedings Volume 3327, (1998) https://doi.org/10.1117/12.310695

KEYWORDS: Analytical research, Acoustics, Aluminum, Solids, Chemical elements, Systems modeling, Mechanical engineering, Thermodynamics, Foam, Resistance

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Showing 5 of 33 publications

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