**PHD THESIS**

**BARDELLA L. (2000). Mechanical
behavior of glass-filled epoxy resins: experiments, homogenization methods
for syntactic foams, and applications. PhD thesis, University of
Brescia.**

**CONFERENCES**

**Full length articles**

**1) **__BARDELLA L.__, GENNA F. (2000).
Approximate computation of the elastic shear stiffness of a sandwich beam.
GIMC 2000 - XIII Italian Conference on Computational Mechanics, Brescia (Italy). 13-15 November. (pp.
218-226). ISBN: 88-86524-47-1.

**
2) **__BARDELLA L.__, GENNA F. (2005).
Some remarks on the micromechanical modeling of
glass/epoxy syntactic foams. 20th Annual Technical Conference of
the American Society for Composites, Philadelphia, PA (U.S.A.). 6-9 September.
Proceedings edited by F.K. Ko, G.R. Palmese, Y. Gogotsi, A.S.D. Wang. ISBN: 1-932078-50-9

**Brief notes and abstracts**

**1) BARDELLA L. (2000). The
generalized plane stress state: backward Euler consistent algorithm for
the J2-flow theory of plasticity with isotropic hardening. GIMC 2000 - XIII
Italian Conference on Computational Mechanics, Brescia (Italy). 13-15 November. (pp. 60-64).
ISBN: 88-86524-47-1.**

**2) BARDELLA L. (2000). A
phenomenological constitutive law for epoxy resins. GIMC 2000 - XIII
Italian Conference on Computational Mechanics, Brescia (Italy). 13-15 November. (pp. 65-71).
ISBN: 88-86524-47-1.**

**3) **__PRANDINI M.__, BARDELLA L. (2000).
Identification of a constitutive model for epoxy resins. GIMC 2000 - XIII
Italian Conference on Computational Mechanics, Brescia (Italy). 13-15 November. (pp. 125-131).
ISBN: 88-86524-47-1.

**4) BARDELLA L. (2002). On the
modeling of the nonlinear viscoelastic behavior of epoxy resins. Seventh
Pan American Congress of Applied Mechanics (PACAM VII), Temuco (Chile).
2-4 January. (vol. 9, pp. 229-232). Applied Mechanics in the Americas
edited by P. Kittl, G. Diaz, D. Mook, J. Geer.**

**5) **__BARDELLA
L.__, GENNA F. (2002). Unit
cell analysis of the nonlinear behaviour of glass/epoxy syntactic foams.
EUROMECH Colloquium 438 on Constitutive Equations for Polymer
Microcomposites, Vienna (Austria). 15-17 July. (pp. 100-101). Book of Abstracts edited by
L. Dorfmann, A.D. Drodzov, R.W. Ogden. ISBN: 3-900962-40-5.

**6) BARDELLA L. (2007).
A strain gradient crystal plasticity theory based on dislocation densities.
Computational Plasticity IX. Fundamentals and Applications,
Barcelona (Spain). 5-7 September. (pp. 969-972). Proceedings edited by
E. Onate, D.R.J. Owen, B. Suarez. ISBN: 978-84-96736-27-6.**

**7) **__BARDELLA L.__, GIACOMINI A. (2007).
Size effects and strain gradient plasticity: how many length scales
should be involved in the modelling?
AIMETA 2007: XVIII Italian Conference on Theoretical and Applied Mechanics.
Brescia (Italy). 11-14 September. Proceedings edited by
A. Carini, G. Mimmi, R. Piva. ISBN: 978-88-89720-69-1.

**8) **__BARDELLA L.__, MINELLI M. (2007).
On the accurate computation of the deflection of sandwich beams.
AIMETA 2007: XVIII Italian Conference on Theoretical and Applied Mechanics.
Brescia (Italy). 11-14 September. Proceedings edited by
A. Carini, G. Mimmi, R. Piva. ISBN: 978-88-89720-69-1.

**9) BARDELLA L. (2009).
The influence of the dissipation due to the plastic spin on the size effects describable by
means of isotropic strain gradient plasticity.
AIMETA 2009: XIX Italian Conference on Theoretical and Applied Mechanics.
Ancona (Italy). 14-17 September. Proceedings edited by
S. Lenci. ISBN: 978-88-96378-08-3.
**

**10) **__BARDELLA L.__, TONELLI D., MINELLI M. (2009).
How to choose an analytical model for the stress state of sandwich beams under bending.
AIMETA 2009: XIX Italian Conference on Theoretical and Applied Mechanics.
Ancona (Italy). 14-17 September. Proceedings edited by
S. Lenci. ISBN: 978-88-96378-08-3.

**11) **__BARDELLA L.__, SEGURADO J. (2011).
A comparison between strain gradient crystal plasticity and discrete dislocation dynamics.
ICMM2: 2nd International Conference
on Material Modelling. Paris. 31st August-2nd September. Book of abstracts
edited by J. Besson e M. Maziere. pp 189. ISBN: 978-2911256-61-5.

**12) **__BARDELLA L.__, SEGURADO J. (2011).
A comparison between strain gradient crystal plasticity and discrete dislocation dynamics.
AIMETA 2011: XX Italian Conference on Theoretical and Applied Mechanics.
Bologna (Italy). 12-15 September. Proceedings edited by
F. Ubertini, E. Viola, S. de Miranda e G. Castellazzi. ISBN: 978-88-906340-0-0 (print, volume of abstracts)
ISBN: 978-88-906340-1-7 (online, extended proceedings).

**13) **__BARDELLA L.__, SEGURADO J., PANTEGHINI A., LLORCA J. (2013).
Latent hardening size effect in small-scale plasticity.
Computational Plasticity XII. Fundamentals and Applications.
Invited session "Material Size-effects in Plasticity" organised by Viggo Tvergaard and Christian F. Niordson.
Barcelona (Spain). 3-5 September. Proceedings edited by
E. Onate, D.R.J. Owen, D. Peric, B. Suarez. ISBN: 978-84-941531-5-0.

**14) **__BARDELLA L.__, PANTEGHINI A. (2015).
Modelling the torsion of thin metal wires by phenomenological distortion gradient plasticity.
AIMETA 2015: XXII Italian Conference on Theoretical and Applied Mechanics.
Genova (Italy). 14-17 September. Proceedings edited by
L. Gambarotta and A. Morro. ISBN: 978-88-97752-52-3.

**15) PANTEGHINI A., **__BARDELLA L.__ (2016).
On the Finite Element implementation of higher-order gradient plasticity,
with focus on theories based on plastic distortion incompatibility.
XXI Italian Conference on Computational Mechanics and VIII Meeting of the AIMETA Materials Group
(GIMC-GMA 2016), Lucca (Italy). 27-29 June.
Proceedings edited by M. Paggi, A. Bacigalupo, S. Bennati, C. Borri, M. Corrado,
A. Gizzi, P.S. Valvo. Tipolitografia Contini, Sesto Fiorentino (Florence). ISBN: 9791220013338.

**16) **__VOLPINI V.__, RODELLA A., BARDELLA L., CHA Y., PORFIRI M. (2016).
Modelling the sensing response of Ionic Polymer Metal Composites
subject to through-the-thickness compression.
XXI Italian Conference on Computational Mechanics and VIII Meeting of the AIMETA Materials Group
(GIMC-GMA 2016), Lucca (Italy). 27-29 June.
Proceedings edited by M. Paggi, A. Bacigalupo, S. Bennati, C. Borri, M. Corrado,
A. Gizzi, P.S. Valvo. Tipolitografia Contini, Sesto Fiorentino (Florence). ISBN: 9791220013338.

**17) VOLPINI V., BARDELLA L., RODELLA A., CHA Y., **__PORFIRI M.__ (2017).
A theoretical framework for the study of
compression sensing in ionic polymer metal composites.
Electroactive Polymer Actuators and Devices (EAPAD) XIX Conference, Portland, OR (USA). 26-29 March.
Proceedings edited by Yoseph Bar-Cohen.
Proc. Society of Photo-Optical Instrumentation Engineers (SPIE) 10163,
EAPAD 101630M (April 17, 2017).
**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.

**PREFACES
**

**
1) BARDELLA L., PAGGI M., VENA P. (2017).
Special issue on "Recent Advances on the Mechanics of Materials".
MECCANICA. To appear ISSN: 0025-6455.
****DOI
**

**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.
**

**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.
**