**18) PANTEGHINI A., **__BARDELLA L.__ (2018).
H(curl) finite element analysis of distortion gradient plasticity.
IUTAM Symposium on Size-Effects in Microstructure and Damage Evolution,
Kgs. Lyngby (DK). 27 May-1 June.
Proceedings edited by K.L. Nielsen, C.F. Niordson, V. Tvergaard.
DTU Mechanical Engineering, Section of Solid Mechanics, Technical University of Denmark.
Nils KLoppels Allé, Bld. 404, DK-2800 Kgs. Lyngby.
ISBN: 978-87-7475-521-0.

**19) **__BOLDINI A.__, BARDELLA L., PORFIRI M. (2020).
On structural models for ionic polymer metal composites. (SPIE Best Student Paper Finalist)
Electroactive Polymer Actuators and Devices (EAPAD) XXII Conference.
Proceedings edited by Yoseph Bar-Cohen.
Proc. Society of Photo-Optical Instrumentation Engineers (SPIE) 11375,
EAPAD 113751B (April 22, 2020).
**DOI
**

** **

**Conference participations**

**1) **__BARDELLA L.__, SALVADORI A., GENNA
F. (2001). Effect of preconditioning kernels on the stability of
variationally-based time integration methods. AIMETA --- XIV
Italian Conference on Computational Mechanics, Taormina (CT, Italy). 26-29 September.

**2) BARDELLA L. (2003). A
phenomenological model for the rheology of epoxy resins in the glassy
state. XIV Italian ABAQUS Users' Meeting, Brescia (Italy). 5-7 November.
**

**
3) BARDELLA L. (2007). Size effects and
strain gradient crystal plasticity. First Meeting of the AIMETA Materials Group
(GMA07), Trento (Italy). 23-24 February.
**

**
4) **__BARDELLA L.__, GIACOMINI A. (2008).
A comparison between crystal and
isotropic modellings of strain gradient crystal plasticity.
Second Meeting of the AIMETA Materials Group (GMA08), Genova (Italy). 29 February-1 March.

**
5) BARDELLA L. (2009). The role of the plastic spin in strain gradient plasticity.
Third Meeting of the AIMETA Materials Group
(GMA09), Milano (Italy). 23-24 January.
**

**
6) **__SBURLATI R.__, BARDELLA L. (2009).
Three-dimensional elastic analysis for inhomogeneous plates (FGMS).
Third Meeting of the AIMETA Materials Group
(GMA09), Milano (Italy). 23-24 January.

**7) BARDELLA L. (2009).
Size effects in isotropic strain gradient
plasticity constitutively involving the plastic spin.
4th International Symposium on Defects and Material
Mechanics (ISDMM09), Trento (Italy). 6-9 July.
**

**
8) **__BARDELLA L.__, BELLERI A. (2010).
On the viscoelastic and viscoplastic behaviour of epoxy resins.
Fourth Meeting of the AIMETA Materials Group
(GMA2010), Palermo (Italy). 25-26 February.

**
9) **__BARDELLA L.__, SEGURADO J. (2011).
Size effects in metallic microcomponents: a comparison between
strain gradient plasticity and discrete dislocation dynamics.
Fifth Meeting of the AIMETA Materials Group
(GMA2011), Udine (Italy). 23-25 February.

**
10) **__BARDELLA L.__, SFREDDO A., VENTURA C., GUPTA N., PORFIRI M. (2011).
A comparison among different homogenisation techniques for
estimating the effective elastic moduli of syntactic foams.
ECI Conference Syntactic and Composite Foams III, Cetraro (Italy). 29 May-3 June.

**
11) **__BARDELLA L.__, FESTA A., PORFIRI M. (2012).
Micromechanical models for the failure modalities of syntactic foams
subject to uniaxial compression.
Sixth Meeting of the AIMETA Materials Group
(GMA2012), Lucca (Italy). 13-14 April.

**
12) **__BARDELLA L.__, MALANCA F., PONZO P., PANTEGHINI A., PORFIRI M. (2013).
Micromechanical finite element modelling of the quasi-brittle
failure of syntactic foams subject to uniaxial compression.
CERMODEL 2013, Trento (Italy). 10-12 July.

**
13) **__BARDELLA L.__, SEGURADO J., PANTEGHINI A., LLORCA J. (2014).
Latent hardening size effect in small-scale plasticity.
EUROMECH Colloquium 563 on Generalized Continua and Their Application to the Design
of Composites and Metamaterials, Cisterna di Latina (Italy). 17-21 March.

**
14) **__BARDELLA L.__, PANTEGHINI A. (2014).
On the compressive strength of glass-microballoons/thermoset-matrix syntactic foams.
XX Italian Conference on Computational Mechanics and VII Meeting of the AIMETA Materials Group
(GIMC-GMA2014), Cassino (Italy). 11-13 June.

**
15) BARDELLA L., **__MATTEI O.__ (2014).
On explicit analytic solutions for the accurate evaluation of the shear stress in sandwich beams
with a clamped end.
11th World Congress on Computational Mechanics (WCCM XI) and
5th European Conference on Computational Mechanics (ECCM V),
Barcelona (Spain). 20–25 July.

**
16) **__BARDELLA L.__, PANTEGHINI A. (2015).
On the compressive strength of glass-microballoons/thermoset-matrix syntactic foams.
State of the art and challenges in thermal and mechanical modelling
of ceramic materials, Trento (IT). 20 March.

**
17) **__BARDELLA L.__, PANTEGHINI A. (2015).
Modelling the torsion of thin metal wires by phenomenological distortion gradient plasticity.
KEYNOTE presentation at the 9th European Solid Mechanics Conference,
Madrid (Spain). 6-10 July.

**18) **__MARTÍNEZ-PAÑEDA E.__, NIORDSON C.F., BARDELLA L. (2015).
A finite element basis for distortion gradient plasticity theory.
Computational Plasticity XIII. Fundamentals and Applications.
Invited session "Non-local and Strain Gradient Plasticity".
Barcelona (Spain). 1-3 September.

**19) PANTEGHINI A., **__BARDELLA L.__ (2016).
Implicit finite element algorithms for higher-order gradient plasticity theory.
24th International Congress of Theoretical and Applied Mechanics (ICTAM 2016).
Montréal (Canada).
Invited contribution in the Thematic session "Sizescale Effects in Materials". 21-26 August.

**
20) PERINI G., **__BARDELLA L.__, PANTEGHINI A., GUPTA N., PORFIRI M., TESSIER N. (2017).
Failure behaviour of glass-microballoons/thermoset-matrix syntactic
foams subject to hydrostatic loading.
ECI Conference Syntactic and Composite Foams V, Siracusa (Italy). 26-31 March.

**
21) **__BARDELLA L.__, LERONNI A., SHARGHI H., VOLPINI V., PORFIRI M. (2017).
A Maxwell stress-based explanation of back-relaxation in ionic polymer metal composites.
AIMETA 2017: XXIII Italian Conference on Theoretical and Applied Mechanics.
Salerno (Italy). 4-7 September.

**
22) **__PANTEGHINI A.__, BARDELLA L. (2017).
On the finite element implementation of higher-order gradient plasticity theories.
Computational Plasticity XIV. Fundamentals and Applications.
Invited session "Size-effects in Metal Plasticity".
Barcelona (Spain). 5-7 September.

**
23) LERONNI A., **__BARDELLA L.__, VIVIANI L. (2018).
Influence of shear on sensing and energy harvesting of ionic polymer metal composites.
ESMC 2018 - 10th European Solid Mechanics Conference,
Bologna (Italy). 2-6 July.

**
24) **__VOLPINI V.__, BARDELLA L. (2018).
Compression sensing of ionic polymer metal composites: influence of the material properties in the
polymer/metal interphase.
ESMC 2018 - 10th European Solid Mechanics Conference,
Bologna (Italy). 2-6 July.

**
25) PANTEGHINI A., **__BARDELLA L.__ (2018).
On the mechanical response due to higher-order boundary conditions in distortion gradient plasticity
based on dislocation density tensor.
ESMC 2018 - 10th European Solid Mechanics Conference,
Bologna (Italy). 2-6 July.

**
26) **__PANTEGHINI A.__, BARDELLA L. (2018).
H(curl) finite element analysis of distortion gradient plasticity.
XXII Italian Conference on Computational Mechanics and IX Meeting of the AIMETA Materials Group
(GIMC-GMA 2018), Ferrara (IT). 13-14 September.

**
27) **__VOLPINI V.__, BARDELLA L., PORFIRI M. (2018).
Tailoring physical and geometric properties of ionic polymer metal
composites toward optimised compressive sensing.
XXII Italian Conference on Computational Mechanics and IX Meeting of the AIMETA Materials Group
(GIMC-GMA 2018), Ferrara (IT). 13-14 September.

**
28) **__LERONNI A.__, BARDELLA L., VIVIANI L. (2018).
Influence of shear and boundary conditions on the electrochemomechanics of ionic
polymer metal composites.
XXII Italian Conference on Computational Mechanics and IX Meeting of the AIMETA Materials Group
(GIMC-GMA 2018), Ferrara (IT). 13-14 September.

**
29) **__VOLPINI V.__, BARDELLA L., GEI M. (2019).
A semi-analytical procedure for the homogenisation of dielectric laminated composites at finite strains.
International Workshop on
The Multiscale Spectrum of Constitutive Modeling in Solid Mechanics,
Castro Urdiales (Spain). 1-5 July.

**
30) **__PANTEGHINI A.__, BARDELLA L., NIORDSON C.F. (2019).
A mixed energetic/dissipative higher-order potential for strain-gradient plasticity under non-proportional loading.
Computational Plasticity XV. Fundamentals and Applications.
Invited session "Length Scales in Plasticity and Fracture".
Barcelona (Spain). 3-5 September.

**
31) **__BOLDINI A.__, BARDELLA L., PORFIRI M. (2019).
A total potential energy to study mechanics and electrochemistry of ionomers.
BAMN 2019: 10th Biomimetics, Artificial Muscles & Nano-Bio International Congress.
Bangor, Maine (USA). 8-11 September.

**
32) **__BARDELLA L.__, PANTEGHINI A., NIORDSON C.F. (2019).
A potential for strain gradient plasticity simulations free from unexpected interruptions of plastic flow under non-proportional loading.
AIMETA 2019: XXIV Italian Conference on Theoretical and Applied Mechanics.
Rome (Italy). 15-19 September.

**
33) **__LERONNI A.__, PIETAK A., BARDELLA L., DORFMANN L., LEVIN M. (2019).
The coupling of bioelectrical and mechanical phenomena.
AIMETA 2019: XXIV Italian Conference on Theoretical and Applied Mechanics.
Rome (Italy). 15-19 September.

**
34) **__VOLPINI V.__, BARDELLA L., GEI M. (2019).
A semi-analytical homogenisation procedure for the study of actuation in hierarchical dielectric laminated composites at finite strains.
AIMETA 2019: XXIV Italian Conference on Theoretical and Applied Mechanics.
Rome (Italy). 15-19 September.

**
35) BARDELLA L., PERINI G., PANTEGHINI A., TESSIER N., **__GUPTA N.__, PORFIRI M. (2019).
Failure of glass-microballoons/thermoset-matrix syntactic foams subject to hydrostatic loading.
Workshop on Mechanical and Acoustic Properties of Syntactic Foams.
Manchester (UK). 10-11 October.

**
36) LERONNI A., **__BARDELLA L.__ (2021).
An electrochemo-poromechanical theory for actuation and sensing of ionic polymer metal composites.
EM4SS'21, Engineered Materials for Sustainable Structures.
Modena (Italy, on-line). 26-28 April.

**
37) **__BARDELLA L.__, PANTEGHINI A. (2021).
Distortion gradient plasticity modelling of the small-scale behaviour of metals under non-proportional loading.
IUTAM Symposium on Generalized continua emerging from microstructures.
Paris (France), 19-23 July.

**
38) **__BOLDINI A.__, BARDELLA L., PORFIRI M. (2021).
Modeling mechanics and electrochemistry of ionic polymer metal composites: from continuum theories to finite element analysis and structural modeling.
16th U.S. National Congress on Computational Mechanics (USNCCM16).
Virtual event, 25-29 July.

**
39) **__BARDELLA L.__, PANTEGHINI A. (2021).
Distortion gradient plasticity modelling of the small-scale behaviour of polycrystalline metals under non-proportional loading.
2nd International Workshop on Plasticity, Damage and Fracture of Engineering Materials (IWPDF 2021).
Ankara (Turkey, on-line), 18-20 August.

**
40) VOLPINI V., BARDELLA L., **__GEI M.__ (2021).
On the role of the incompressibility constraint in soft dielectric composites.
25th International Congress of Theoretical and Applied Mechanics (ICTAM 2020+1 Virtual).
Milano (Italy, on-line).
Contribution in the Thematic session "Soft Materials and Extremely Deformable Structures". 23-27 August.

**
41) **__BARDELLA L.__, PANTEGHINI A. (2021).
Modelling the cyclic torsion of polycrystalline micro-sized copper wires by distortion gradient plasticity.
25th International Congress of Theoretical and Applied Mechanics (ICTAM 2020+1 Virtual).
Milano (Italy, on-line).
Contribution in the Thematic session "Sizescale Effects in Materials". 23-27 August.

**
42) BARDELLA L., VOLPINI V., **__GEI M.__ (2021).
The role of compressibility in modelling the actuation of soft dielectric composites.
SES Meeting 2021 - Interactions Matter. Annual Conference of the Society of Engineering Science.
Virtual event. 15th October.

**
43) **__BARDELLA L.__, VOLPINI V., GEI M. (2022).
On the incompressibility constraint in modelling the actuation of soft dielectric composites.
EMMC18 - 18th European Mechanics of Materials Conference,
Oxford (UK). 4-6 April.

**PREFACES
**

**
1) BARDELLA L., PAGGI M., VENA P. (2018).
Special issue on "Recent Advances on the Mechanics of Materials".
MECCANICA. vol. 53/3, pp. 509-510 ISSN: 0025-6455.
****DOI OpenAccess
**

**INVITED TALKS
**

**1) A deformation theory of strain gradient
crystal plasticity for the description of the variation in strength and strain
hardening with changing size. MICROMECHANICS SEMINAR SERIES & WORKSHOPS,
Department of Engineering, University of Cambridge (UK), 18 November 2005.
**

**
2) Polycrystal plasticity: size effects and strain gradient modelling.
Department of Engineering, University of Ferrara (Italy), 16 March 2007.
**

**
3) Size effects and strain gradient plasticity: how many length
scales should be involved in the modelling?
Departamento de Ciencia de Materiales, Universidad Politécnica de Madrid (Spain), 3 March 2009.
**

**4) Modelling the size effects of polycrystals by means of strain gradient plasticity.
Department of Structural Engineering, Politecnico di Milano (Italy), 13 November 2009.
**

**5) Studies of small-scale plasticity.
Danish Center for Applied Mathematics and Mechanics, Technical University of Denmark, 7 April 2011.
**

**6) Studies of small-scale plasticity.
Department of Civil, Chemical and Environmental Engineering, University of Genova, 6 March 2014.
**

**7) Crystal and phenomenological distortion-gradient plasticity theories.
Department of Civil Engineering and Architecture, University of Pavia, 11 September 2014.
**

**8) Modelling the torsion of thin metal wires by distortion gradient plasticity.
Fédération Francilienne de Mécanique, Séminaire Île-de-France, École Nationale Supérieure d'Arts et Métiers ParisTech (ENSAM),
15 January 2015.
**

**9) Modelling the torsion of thin metal wires by distortion gradient plasticity.
Danish Center for Applied Mathematics and Mechanics, Technical University of Denmark, 26 May 2015.
**

**10) Studies of micron scale size effects in metals through higher-order gradient plasticity based on plastic distortion incompatibility.
Department of Engineering and Architecture, University of Parma, 27 March 2019.
**

**11) Structural theory for composite beams warped by midlayer slip.
University of Trieste, 16 December 2020.
**

**12) Syntactic foams research and applications: an update from Europe.
Virtual panel discussion organised by New York University, 12 February 2021.
**

**13) Electrochemo-poromechanics for modelling actuation and sensing of ionic polymer metal composites.
University of Pisa, on-line, 18 May 2021.
**

**INVITED PARTICIPATIONS TO SYMPOSIA
**

**
****
1) New Horizons in Materials Mechanics: Symposium in celebration of the 70th
birthday of Viggo Tvergaard. Copenhagen, 5-7 June 2013.
**