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Joël Cugnoni

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Publications associées (83)

A toolbox of oligopeptide-modified polymers for tailored elastomers

Joël Cugnoni, Véronique Michaud, Emmanuel Croisier, Marijana Mionic Ebersold, Holger Frauenrath, Su Liang, Ruben Anton Snellings, Thomas Schweizer

Biomaterials are constructed from limited sets of building blocks but exhibit extraordinary and versatile properties, because hierarchical structure formation lets them employ identical supramolecular motifs for different purposes. Here we exert a similar ...

Nature Publishing Group2014

Factors affecting subject-specific finite element models of implant-fitted rat bone specimens: critical analysis of a technical protocol

Joël Cugnoni, John Botsis, Marco Piccinini

The authors propose a protocol to derive finite element (FE) models from micro computer tomography scans of implanted rat bone. A semi-automatic procedure allows segmenting the images using specimen-specific bone mineral density (BMD) thresholds. An open-s ...

Taylor & Francis2014

Multi-factorial models of a carbon fibre/epoxy composite subjected to accelerated environmental ageing

Joël Cugnoni, Thomas Gmür, Enrique René Guzman Solares

Among materials being introduced in the aerospace industry, the carbon fibre reinforced plastics (CFRP) have a place of privilege because of their exceptional stiffness-to-mass ratio. However, the polymer-based matrix is vulnerable to damages by environmen ...

Elsevier2014

Influence of the thin ply size on mode I and II energy release rate of unidirectional carbon epoxy laminates

Joël Cugnoni, Thomas Gmür, John Botsis, Guillaume Frossard

2014

Studies of hygrothermal degradation of a single fiber composite: An iterative approach with embedded optical sensors and numerical analysis

Joël Cugnoni, John Botsis, Marco Lai

The hydrothermal ageing of glass/epoxy interface is investigated using an experimental numerical approach on cylindrical epoxy specimens with centrally located optical fibers. A 24 mm long Bragg grating sensor is inscribed on the optical fiber and used to ...

Elsevier2014

Influence of gait loads on implant integration in rat tibiae: Experimental and numerical analysis

Joël Cugnoni, John Botsis, Marco Piccinini

Implanted rat bones play a key role in studies involving fracture healing, bone diseases or drugs delivery among other themes. In most of these studies the implants integration also depends on the animal daily activity and musculoskeletal loads, which affe ...

Elsevier2014

Isothermal Ageing of SnAgCu Solder Alloys: Three-Dimensional Morphometry Analysis of Microstructural Evolution and Its Effects on Mechanical Response

Joël Cugnoni, John Botsis, Milad Maleki

Due to the high homologous temperature and fast cooling rates, the microstructures of SnAgCu (SAC) solders are in a meta-stable state in most applications, which is the cause of significant microstructural evolution and continuous variation in the mechanic ...

Springer2014

A new structural health monitoring (SHM) system using integrated polyvinylidene difluoride (PVDF) transducer networks

Joël Cugnoni, Thomas Gmür, Enrique René Guzman Solares

2014

Thin ply composites: Experimental characterization and modeling of size-effects

Joël Cugnoni, John Botsis, Robin Amacher, Larissa Sorensen

Thin-ply composites are rapidly gaining interest in the composite industry, not only because of the larger design possibilities that they offer, but also because of positive size effects that have been shown to improve performance in various loading condit ...

Elsevier2014

Use of PVDF transducers as actuators for operational modal analysis on composite samples

Joël Cugnoni, Thomas Gmür, Enrique René Guzman Solares

2013

Survivability of integrated PVDF film sensors to accelerated ageing conditions in aeronautical/aerospace structures

Joël Cugnoni, Alain Schorderet, Enrique René Guzman Solares

This work validates the use of integrated polyvinylidene fluoride (PVDF) film sensors for dynamic testing, even after being subjected to UV-thermo-hygro-mechanical accelerated ageing conditions. The verification of PVDF sensors' survivability in these envi ...

Institute of Physics2013

Influence of the moisture content on the fracture characteristics of welded wood joint. Part 1: Mode I fracture

Joël Cugnoni, Parviz Navi, John Botsis, Martin Rhême

Friction welding is a joining technique for wood materials. The positive aspects of this technique are the speed of processing and the absence of chemical or mechanical agents, but the welded joints are not water resistant. To understand better the effect ...

De Gruyter2013

External Mechanical Microstimuli Modulate the Osseointegration of Titanium Implants in Rat Tibiae

Joël Cugnoni, John Botsis

Purpose. To assess the effect of external mechanical microstimuli of controlled magnitude on the microarchitecture of the peri-implant bone beds in rat tibiae. Materials and Methods. Tibiae of forty rats were fitted with two transcutaneous titanium cylinde ...

Hindawi Publishing Corporation2013

Monitoring and characterization of the interfacial fracture in sandwich composites with embedded multiplexed optical sensors

Joël Cugnoni, John Botsis, Ebrahim Farmand Ashtiani

Interfacial debonding is one of the most critical damage modes that threatens the structural performance of sandwich composites. In this work, integrated multiplexed fiber Bragg grating (FBG) sensors of 1 mm gauge length are used for detection and characte ...

Elsevier Sci Ltd2013

Quantification of damage due to environmental conditions on carbon fibre/epoxy composite samples

Joël Cugnoni, Thomas Gmür, Enrique René Guzman Solares

Aalborg University2013

Influence of the moisture content on the fracture characteristics of welded wood joint. Part 2: Mode II fracture

Joël Cugnoni, Parviz Navi, John Botsis, Martin Rhême

As a second part of this series, the present study also addresses the water resistance of joints obtained by friction welding. Here, the mode II fracture is in focus, that is, 4-points end-notched flexure specimens (4-ENF) were investigated with various mo ...

De Gruyter2013

Microstructure-based modeling of the ageing effect on the deformation behavior of the eutectic micro-constituent in SnAgCu lead-free solder

Joël Cugnoni, John Botsis, Milad Maleki

The eutectic micro-constituent in SnAgCu solder governs the deformation behavior of the joint as it shows better deformation resistance than the Sn dendrites and occupies a high volume percentage of the whole solder. The main scope of this study is to deve ...

Elsevier2013

Implementation of the "loaded implant" model in the rat using a miniaturized setup - description of the method and first results

Joël Cugnoni, Philippe Bonhote, John Botsis

Objective To miniaturize the loaded implant model to permit its application to small rodents. In this model, two titanium implants are placed 8 mm apart with their heads protruding from the skin and are forced together by a dedicated actuator. To assess th ...

Wiley-Blackwell2012

Accelerated isothermal and cyclic ageing of carbon fibre/epoxy composite panels with integrated PVDF sensors

Joël Cugnoni, Thomas Gmür, Enrique René Guzman Solares

FEUP2012

Numerical And Statistical Estimates Of The Representative Volume Element Of Elastoplastic Random Composites

Joël Cugnoni, John Botsis, Matteo Galli

In many applications elastoplastic composites are used in limited amounts, therefore it is important to have estimates of the size of their representative volume element both for modeling and experimental purposes. In this work the tensile response of part ...

Elsevier2012

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