Activités de recherche :

Experimental and numerical modelling of the mechanical behavior of metallic and/or composite bonded and/or bolted joints

OVERVIEW
The manufacturing of mechanical systems mainly requires the assembly of several structural subcomponents. The first function of joints is to allow for the physical existence of mechanical systems. Moreover, the joints allow for the transfer of loads between the joined structural subcomponents, composing the mechanical system. The mechanical system life is then highly dependent on these joints. The assemblies are the critical point of every manufacturing industries. My research theme consists in investigating the questions raised by joining technologies such as adhesive bonding and mechanical fastening.

List of publications
on: https://personnel.isae-supaero.fr/eric-paroissien/publication-activities.html

Key words
bonding ; bolting ; macro-element ; (semi-)analytical model ; finite element model ; cohesive zone model ;

 

RESEARCH PROJECTS

SCODyn: Methdologies for fast and reliable siimulation of bonded structures under dynamic loadings  [in progress]
SCODyn stands in French for “Méthodologies pour la simulation rapide et fiable de structures collées multi-couches sous sollicitation dynamique”. This project deals with the formulation of the stiffness matrix and mass matrix of a macro-element (ME) of two bonded plates. The objective is to be able to simulate, thanks to the ME technique, the behavior of 3D thin structures (under plate kinematics) involving bonded joints at low CPU time while taking into account the accurate behavior of the adhesive layers. The PhD Thesis of Benjamin Ordonneau is supported by this project. The funding is granted by DGA and CETIM.

 

PRACCOMET: Failure Prediction of Bonded Composite Metallic Joints  [in progress]
PRACCOMET stands in French for “Prédiction de la Rupture d’Assemblages Collés Composites Métalliques”. This project deals with the failure prediction of bonded joints made of composite and/or metallic adherends. It focuses on the prediction of failure at the interface between various combinations of adherend / adhesive couples. The adherends are made in aluminium alloy or TP composite materials. Epoxy adhesives and methacrylate adhesives are used. Physico-chemical and mechanical experimental characterization are expected to feed experimental and numerical models.
This project is supported by the PhD Thesis of Thiago Vasconcellos Birro. The funding is granted by University of Toulouse and by Région Occitanie.

 

S3PAC: Simulation and Supervision System for the Production of Bonded Assemblies   [in progress]
The project aims at widespreading the industrial use of structural bonding and taking benefit of this technology on the strength-to-mass ratio. One lock associated to this technology is the control to the quality of the bonded joints. This project aims at developing a supervision and simulation system of the production of bonded structures, available both at the design office and on the manufacturing floor, in order to monitor and control all the events happening in the production of bonded joints. This projet is pluridisciplinary by associating Chemistry and Science of Materials, Information Technologies (IoT, Big Data, IA) and Mechanical Engineering.
The PhD Thesis of Agathe Jaillon is supported by this project. The funding is granted by BPI France, Région Occitanie and Région Nouvelle Aquitaine, under French Interministerial 21 (FUI 21).

 

JoSAT: Joint Stress Analysis Tool [in progress]
This project was launched in 2008 as a part of the internal research program of Sogeti High Tech. The project goal is to develop a methodology for the simplified stress analysis of pure bonded, pure bolted of hybrid (bolted/bonded) joints.
The methodology is based on the macro-element technique. Considering the bonded overlaps, it allows for the modelling of both adherends and the adhesive layer all along the overlap with only one four-nodes brick. Considering the fastening system, it allows for the introduction of bolt normal, shear and bending stiffnesses. The methodology supports non linear materials and allows for quasi-static, fatigue, vibration under isothermal conditions analyses.
The PhD Thesis of Guillaume Lélias was supported by this project. The funding was granted by Sogeti High Tech under CIFRE mechanism (ANRT).

Activités d'enseignement :

Mechanics of Aerospace Structures

FACE-TO-FACE
“Ingénieur ISAE-SUPAERO” (Eng. Degree)
Beam Theory (1A/L3)
Mechanics of Structures (2A/M1)
Master of Science in Aerospace Engineering
Preliminary Design of Aircraft Structures (M1)
Introduction to Mechanics of Assemblies (M1)
Advanced Masters
Modelling of Aircraft Structures (TAS-AERO)
Introduction to Mechanics of Assemblie (AMPASS)
Spring Semester
Elements on Strength of Materials (L3)
EUROSAE
Comportement Mécanique des Assemblages Collés

DIRECTION OF COURSES
“Ingénieur ISAE-SUPAERO” (Eng. Degree)
Beam Theory (1A/L3)
Master of Science in Aerospace Engineering
Aircraft Structures 1 (M1)
Advanced Masters
Modelling of Aircraft Structures (TAS-AERO)
Aircraft Structures (SAS, TAS-AERO)
Spring Semester
Introduction to Aircraft Structures (L3)
EUROSAE
Assemblage par Collage Structural

CORRESPONDENCE OF COURSES
“Ingénieur ISAE-SUPAERO” (Eng. Degree)
Introduction aux Charges et Structures Aéronefs (3A/M2)
Projet conception (3A/M2)
Master of Science in Aerospace Engineering
Aircraft Structures 2 (M2)

Responsabilités collectives :

TACCOS (Toulouse Adhésion Cohésion. Collage Structural)

Co-creator and contributor of the TACCOS inititiative (Toulouse Adhesion Cohesion. Structural Adhesive Bonding) launched in 2017.
This initiative aims at investigating the questions arisen from the structural adhesive bonding, basing on Chemisitry and Mechanics. The subtitle of TACCOS is “From Chemistry to Mechanics“.
This initiative is developped through a collaboration between the transverse axis “Adherence” at CIRIMAT (http://www.cirimat.cnrs.fr/spip.php?article607) and the transverse axis “Assembly” at ICA (http://www.institut-clement-ader.org/axe.php?eq=asm).

TACCOS_july2018

Autre :

MACRO-ELEMENT TECHNIQUE

The macro-element (ME) technique is the methodology for the simplified stress analysis of bonded, bolted and hybrid (bonded/bolted) joints. Based on simplified hypotheses, the actual joint is meshed in particular elements. The fasteners are modelled by 2-DDL or 6-DDL fastener elements, while the bonded overlap are modelled by dedicated 4-nodes Bonded-bars (BBa) and Bonded-beams (BBe) espacially formulated. Only one BBa or BBe, depending on the chosen kinematics, is sufficient to be representative for an entire bonded overlap in the frame of a linear elastic analysis. When the geometrical or material properties of the adherends or the adhesive layer vary along the overlap a mesh is necessary along the overlap length direction only. The ME technique is inspired by the FE method and differs in the sense that the interpolation functions are not assumed. Indeed, they take the shape of solutions of the governing ordinary differential equations (ODEs) system, coming from the constitutive equations of the adhesive and adherends and from the local equilibrium equations, related to the simplifying hypotheses. The main work is thus the formulation of the elementary stiffness matrix of the ME. Once the stiffness matrix of the complete structure is assembled from the elementary matrices and the boundary conditions are applied, the minimization of the potential energy provides the solution, in terms of adhesive stress distributions along the overlap, internal forces and displacements in the adherends. The ME technique can be regarded as mathematical procedure allowing for the resolution of the system of ODE, under a less restricted application field of simplifying hypotheses, in terms of geometry, material behaviours, kinematics, boundary conditions and loads.

MEtechnique_july2018

EXTERNAL COLLABORATION

JOURNAL REFEREE

International Journal of Adhesion and Adhesives
The Journal of Adhesion
Engineering Failure Analysis

Production scientifique :

29 contributions trouvées

Année	Type	Auteurs et titre du document	Liens
2019	ACL	Eric Paroissien, Frederic Lachaud, Lucas Filipe Martins Da Silva, Salah Hammidi Seddiki. A comparison between macro-element and finite element solutions for the stress analysis of functionally graded single-lap joints. Composite Structures, Elsevier, 215, p.331-350	[HAL] / [BIB] / [DOI]
2019	ACL	G. Lélias, Eric Paroissien, Frederic Lachaud, Joseph Morlier. Experimental Characterization of Cohesive Zone Models for Thin Adhesive Layers Loaded in Mode I, Mode II, and Mixed-Mode I/II by the use of a Direct Method. International Journal of Solids and Structures, Elsevier	[HAL] / [BIB] / [DOI]
2018	ACL	Eric Paroissien, Lucas F.M. Da Silva, Frederic Lachaud. Simplified stress analysis of functionally graded single-lap joints subjected to combined thermal and mechanical loads. Composite Structures, Elsevier, 203, p.85 - 100	[HAL] / [BIB] / [DOI]
2018	COM	Thiago Vasconcellos Birro, Frederic Lachaud, Maëlenn Aufray, Eric Paroissien. Prediction of adhesion failure of bonded joints using 3-point bending test and stress-energy coupled criterion. 8th international Conference on structural Analysis of Advanced Materials, p.1-43, Tarbes, FR	[HAL] / [BIB]
2018	COM	Benoît Montagne, Frederic Lachaud, Eric Paroissien, Dominique Martini. Failure analysis of composite bolted joints by an experimental and a numerical approach. 18th European Conference on Composite Materials (ECCM18), p.1-8, Athens, GR	[HAL] / [BIB]
2018	P	Benoît Montagne, Frederic Lachaud, Eric Paroissien, Dominique Martini. Failure analysis of composite bolted joints by an experimental and numerical approach. 18th European Conference on Composite Materials (ECCM18), p.1-1, Athens, GR	[HAL] / [BIB]
2018	COM	Eric Paroissien, Yves Gourinat. Stratégie de modélisation avancée des assemblages structuraux aérospatiaux. Matériaux, interfaces, fatigue, dynamique. Journée scientifique 3AF & ONERA. Assemblages innovants : de l’élaboration matérielle à la modélisation structurale: Enjeux et perspectives., p.1-44, Châtillon, FR	[HAL] / [BIB]
2018	ACL	Eric Paroissien, Frederic Lachaud, Joseph Morlier, S. Schwartz. A Direct Method for the Assessment of Cohesive Zone Models for Thin Adhesive Layers Loaded in Mode I, Mode II, and Mixed-Mode I/II. Reviews of Adhesion and Adhesives	[HAL] / [BIB] / [DOI]
2018	COM	Agathe Jaillon, Julien Jumel, Frederic Lachaud, Eric Paroissien, Jordi Renart. Thickness influence on a structural methacrylate adhesive behavior. 6th World Congress on Adhesion and Related Phenomena (WCARP 2018), pp. 1-24, San Diego, US	[HAL] / [BIB]
2018	COM	Agathe Jaillon, Julien Jumel, Frederic Lachaud, Eric Paroissien, Jordi Renart. Adhesive thickness influence on a structural methacrylate adhesive behavior. 6th World Congress on Adhesion and Related Phenomena (WCARP 2018), p.1-3, San Diego, US	[HAL] / [BIB]
2017	P	Maëlenn Aufray, Eric Paroissien, Jean-Baptiste Sauvage, Dominique Poquillon, Frederic Lachaud. Modélisation expérimentale et numérique de l’essai de flexion 3 points. 19è Journées d'études sur l'adhésion (JADH 2017), p.1-1, Saint-Maxime, FR	[HAL] / [BIB]
2017	ACL	Eric Paroissien, Frederic Lachaud, Sébastien Schwartz, Anthony Da Veiga, Patrick Barrière. Simplified stress analysis of hybrid (bolted/bonded) joints. International Journal of Adhesion and Adhesives, Elsevier, 77, p.183-197	[HAL] / [BIB] / [DOI]
2015	COM	Eric Paroissien, Anthony Da Veiga, Sébastien Schwartz, Guillaume Lélias, Frederic Lachaud, Pierre-Yves Meyer. Simplified stress analysis of bonded joints using the macro-element technique. Forum TERATEC 2015, p.1-42, Palaiseau, FR	[HAL] / [BIB]
2015	ACL	Guillaume Lélias, Eric Paroissien, Frederic Lachaud, Joseph Morlier, Sébastien Schwartz, Cyril Gavoille. An extended semi-analytical formulation for fast and reliable mode I/II stress analysis of adhesively bonded joints. International Journal of Solids and Structures, Elsevier, vol. 62, pp. 18-38	[HAL] / [BIB] / [DOI]
2015	COM	Eric Paroissien, A. Da Veiga, S. Schwartz, G. Lelias, Frederic Lachaud. Modélisation Simplifiée de Liaisons Collées à l’Aide de la Technique par Macro-Element. Revue des Développements Réalisés depuis 2004. Forum TERATEC, Palaiseau, FR	[HAL] / [BIB]
2013	COM	Frederic Lachaud, Robert Piquet, Eric Paroissien, Jacques Huet. Approche couplée essais-calculs pour l’analyse du comportement des assemblages boulonnés en composites stratifiés. NAFEMS, p.1-28, Paris, FR	[HAL] / [BIB]
2013	ACL	Eric Paroissien, Fréderic Gaubert, A. Da Veiga, Frederic Lachaud. Elasto-plastic analysis of bonded joints with macro-elements. Journal of Adhesion Science and Technology, Taylor & Francis, vol. 27, pp. 1464-1498	[HAL] / [BIB] / [DOI]
2011	COM	Eric Paroissien, Denis Campassens. Stress analysis support to structural sealant development. 14th Numerical Simulation Meeting, HUTCHINSON, Cernay-la-ville, FR	[HAL] / [BIB]
2011	COM	Eric Paroissien, Anthony Da Veiga, Audrey Laborde. An 1d-beam approach for both stress analysis and fatigue life prediction of bonded joints. 26th ICAF Symposium, p.359-374, Montréal, CA	[HAL] / [BIB]
2010	ACL	Cat-Tan Hoang-Ngoc, Eric Paroissien. Simulation of Single-Lap Bonded and Hybrid (Bolted/Bonded) Joints with Flexible Adhesive. International Journal of Adhesion and Adhesives, Elsevier, vol. 30(n° 3), pp. 117-129	[HAL] / [BIB] / [DOI]
2009	COM	Eric Paroissien, Cat-Tan Hoang-Ngoc, Harvind Bhugaloo, David Ducher. Improving the fatigue life of aeronautical single-lap bolted joints thanks to the hybrid (bolted/bonded) joining technology. 25th ICAF Symposium, pp. 475-492, Rotterdam, NL	[HAL] / [BIB]
2009	COM	Cat-Tan Hoang-Ngoc, Eric Paroissien. Modélisation par la Méthode des Éléments Finis d’Assemblages Collés à l’Aide d’Adhésifs Flexibles – Application à la Modélisation d’assemblages Hybrides (Boulonnés/Collés) Aéronautiques. SAMTECH Workshop on Non Linear Simulation, Seilh, FR	[HAL] / [BIB]
2007	ACL	Eric Paroissien, Marc Sartor, Jacques Huet, Frederic Lachaud. Hybrid (bolted/bonded)joints applied to aeronautic parts: analytical two-dimensional model of a single-lap joint. Journal of Aircraft, American Institute of Aeronautics and Astronautics, 4(2), p.573-582	[HAL] / [BIB] / [DOI]
2006	PhD	Eric Paroissien. Contribution aux assemblages hybrides (boulonnés/collés) - Application aux jonctions aéronautiques. Contribution to hybrid (bolted/bonded) joining - Application to aeronautical joints.	[HAL] / [BIB]
2006	COM	Eric Paroissien, Marc Sartor, Jacques Huet. Hybrid (bolted/bonded) joints applied to aeronautic parts: analytical one-dimensional models of a single-lap joint. 6th International Conference on Integrated Design and Manufacturing in Mechanical Engineering (6th IDMME), p.1-12, Grenoble, FR	[HAL] / [BIB]
2006	COM	Eric Paroissien, Marc Sartor, Jacques Huet, Frederic Lachaud. Hybrid (Bolted/Bonded) Joints Applied to Aeronautic Parts: Analytical Two-Dimensional Model of a Single-Lap Joint. 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, pp. 1-23, Newport, Rhode Island, US	[HAL] / [BIB]
2005	COM	Eric Paroissien, Marc Sartor, Jacques Huet. Contribution aux assemblages hybrides boulonnés collés aéronautiques : modélisation analytique unidimensionnelle en simple cisaillement. 17ème congrès Français de Mécanique, Troyes, FR	[HAL] / [BIB]
2004	COM	Rémy Chieragatti, Eric Paroissien, Jacques Huet. Faisabilité d'assemblages mixtes boulonnés-collés en aéronautique. Journées Techniques CETIM, p.1-11, Saint-Etienne, FR	[HAL] / [BIB]
2003	COM	Sébastien Didierjean, Laurent Michel, Jean-Jacques Barrau, Eric Paroissien. Predicting the behavior of graphite/epoxy laminates under hydrothermal loads. EUROMECH 453 Internal Stresses in Polymer Composite Processing and Service Life, p.1-4, Saint-Etienne, FR	[HAL] / [BIB]