rizzifoto1.jpgCURRICULUM VITAE

Egidio RIZZI

 

 

Professor of
Mechanics of Materials and Structures
("Scienza delle Costruzioni")

 

Born in Como (Italy)
Italian Citizenship

Appointed at the University of Bergamo, Faculty of Engineering (Dalmine),
    Oct. 2006 - present.

Formerly:
Associate Professor (with tenure) at the University of Bergamo, Faculty of Engineering (Dalmine),
    Nov. 2001 - Sept. 2006.

Associate Professor at Politecnico di Bari, Faculty of Engineering at Taranto,
    Nov. 1998 - Oct. 2001.
Assistant Professor at Politecnico di Milano, Faculty of Engineering (Milano Leonardo),
    Dec. 1995 - Oct. 1998.

 

ADDRESS

Prof. Egidio Rizzi

Università degli Studi di Bergamo
Facoltà di Ingegneria (Dalmine)
Dipartimento di Progettazione e Tecnologie
Viale G. Marconi 5
I-24044 DALMINE (BG)
Italy

 

Tel.: +39.035.205.2325; Fax: +39.035.205.2310

http://www.unibg.it/pers/?egidio.rizzi
E-mail: egidio.rizzi@unibg.it

 

EDUCATION

 

PROFESSIONAL AND RESEARCH EXPERIENCES

  • (06/1989 - 05/1990) One-year stage at the Applied Mechanics Division of the Joint Research Centre (JRC), Commission of the European Communities, Ispra Establishment, Ispra (VA), Italy, c/o Dr. J. Donea and Eng. V. Renda, working on topics related to the Laurea Thesis.
  • (06/1990 - 10/1991) Professional activity as consultant Civil Engineer in Como, Italy.
  • (11/1991 - 02/1995)  Doctoral Student in Structural Engineering, Dept. of Structural Engineering, Politecnico di Milano, Tutor: Prof. G. Maier.
  • (01/1992 - 02/1993, 08/1993 - 12/1993, 08/1994 - 09/1994) Research Assistant at the University of Colorado at Boulder, Dept. of Civil, Environmental and Architectural Engineering, Boulder, Colorado, U.S.A., c/o Prof. K. Willam.
  • (12/1995 - 10/1998) Appointed as Assistant Professor ("Ricercatore") of Mechanics of Materials and Structures ("Scienza delle Costruzioni") at Politecnico di Milano, Faculty of Engineering (Milano Leonardo), Dept. of Structural Engineering.
  • (1996) Selected in Brussels (open competition by titles and live interview) by the Commission of the European Communities for the reserve list of scientific agents.
  • (11/1998 - 10/2001) Appointed as Associate Professor of Mechanics of Materials and Structures ("Scienza delle Costruzioni") at Politecnico di Bari, Faculty of Engineering at Taranto, Dept. of Civil and Environmental Engineering.
  • (11/2001 - 09/2006) Appointed (tenure-track position) as Associate Professor of Mechanics of Materials and Structures ("Scienza delle Costruzioni") at the University of Bergamo, Faculty of Engineering (Dalmine), Dept. of Design and Technologies.
  • (08/2005) Habilitation to cover the role of Full Professor of Mechanics of Materials and Structures ("Scienza delle Costruzioni''); national competition for two openings held at the University of Sassari, Faculty of Architecture, ended August 5, 2005.
  • (10/2006 - present) Appointed as Full Professor of Mechanics of Materials and Structures ("Scienza delle Costruzioni") at the University of Bergamo, Faculty of Engineering (Dalmine), Dept. of Design and Technologies (call by the Faculty of Engineering July 19, 2006; position started October 1st, 2006).

 

MISCELLANEA

  • Research hostings of Foreign Fellows at the Faculty of Engineering (Dalmine), University of Bergamo:

–    Prof. Pere Prat, ETSECCPB-UPC, Barcelona, Spain: December 4-12, 2005;

–    Prof. Ignacio Carol, ETSECCPB-UPC, Barcelona, Spain: November 18-20, 2006;

–    Dr. Thomas Münz, DYNAmore GmbH, Stuttgart, Germany: April 21, 2008; May 18, 2009; in this last occasion the visitor has given to students and colleagues at the Faculty a Seminar on the computational methods in the simulation of crash tests and metal forming: ''Current Issues in Explicit FE Simulations with Emphasis on Closing the Process Chain'';

–    Prof. Benjamin Loret, INPG Grenoble, France: June 8-13, 2009.

  • Mother Language: Italian. Spoken Dialect: Brianzolo. Interested in foreign languages. Acquired some knowledge, connected to the various stages abroad, in reading, oral and written form, of the following Foreign Languages (in chronological learning order): English, French, German, Spanish, Catalan, Portuguese (this last one just on passive phase, did not really experience speaking and writing). Got stuck now with Modern Greek.

  • Since around 2003, developed a personal and scientific interest in Ocular Biomechanics, as connected to the natural methods for eye-sight improvement. Author of Vision Charts for vision training under both convergence and divergence, published on-line since 2007 in internet at http://www.i-see.org/eyecharts.html and available for direct free downloading in pdf format at http://www.i-see.org/rizzi_charts.pdf.

  • Registered professional Civil Engineer in Como (Italy) since 1992. First Membership of the Italian Association of Theoretical and Applied Mechanics (AIMETA) in 1993.

  • Reviewer for the following 15 Scientific Journals: ASCE J. of Materials in Civil Engineering, Computational Materials Science, Computer Methods in Applied Mechanics and Engineering, Engineering Structures, European J. of Finite Elements, European J. of Mechanics A/Solids, Int. J. for Numerical and Analytical Methods in Geomechanics, Int. J. for Numerical Methods in Engineering, Int. J. of Plasticity, Int. J. of Solids and Structures, J. of Physics D: Applied Physics, J. of the Mechanics and Physics of Solids, Meccanica, Mechanics of Materials, Modelling and Simulation in Materials Science and Engineering.

  • Co-Advisor of three Laurea Theses in Civil Engineering (five-year degree) at Politecnico di Milano, Department of Structural Engineering (Mariacristina Laria, 1996/1997, Advisor M. di Prisco, Co-Advisors P.G. Gambarova, E. Rizzi; Ivan Baroncioni, 1997/1998, Advisors G. Maier, E. Rizzi; Paolo Ferrari, 1998/1999, Advisors G. Maier, E. Rizzi). See details at the bottom of the publications list.

  • Advisor of Degree Theses at the University of Bergamo, Faculty of Engineering (Dalmine). Laurea (three-year degree): thesis in Mechanical Engineering (Stefania Sangalli, 2004/2005); theses in Building Engineering (Rosalba Ferrari, 2005/2006; Giada Colasante, 2006/2007; Fabio Rusconi, 2006/2007; Mattia Facheris, 2008/2009). Laurea Specialistica (graduate two-year degree): theses in Building Engineering (Daniele Brescianini and Matteo Scotti, 2006/2007; Rosalba Ferrari, 2008/2009); thesis in Mechanical Engineering (Paolo Chiodi and Luca Gambirasio, 2008/2009). Further details at the end of the publications list. Currently advising 3 students in Building Engineering and 1 student in Mechanical Engineering.

  • Since 2006/2007, Member of the Board of Teachers (''Collegio dei Docenti''), Doctoral School in Engineering of Civil and Mechanical Structural Systems, University of Trento, Coordinator Prof. D. Bigoni.

  • As referent for the University of Bergamo:

–    Referent of the ''Istituto Lombardo di Scienze e Lettere'', Milano, since 2006;

–    Member of the Scientific Board of the ''Centro Volta - Landau Network'', Como, since 2007.

 

  • As referent for the Faculty of Engineering, University of Bergamo:

–    Local responsible of Socrates/Erasmus Programs with UPC Barcelona, Spain and with IST Lisboa, Portugal, since 2003/2004;

–    Responsible of the orienting activities for new perspective and incoming students in Building Engineering, since 2008/2009.

 

TEACHING

  • Teaching Assistant to institutional courses offered at Politecnico di Milano, Faculty of Engineering (Milano Leonardo):
    • Course of "Mechanics of Materials and Structures" ("Scienza delle Costruzioni") for students enrolled in the third year of the five-years Engineering Degree ("Laurea") in Computer, Electronic and Telecommunications Engineering, 1995/96, 1996/97 (Prof. M.A. Parisi).
    • Course of "Mechanics of Materials and Structures" ("Scienza delle Costruzioni") for students enrolled in the third year of the five-years Engineering Degree ("Laurea") in Aerospace Engineering, 1997/98 (Prof. A. Zavelani Rossi).
    • Combined course of "Applied Mechanics and Mechanics of Materials and Structures" ("Meccanica Applicata e Scienza delle Costruzioni") for students enrolled in the second year of the three-years Engineering "Diploma" in Mechanical Engineering, 1995/96, 1996/97, 1997/98 (Prof. A. Zavelani Rossi).
    • Course of "Mechanics of Materials and Fracture Mechanics" ("Meccanica dei Materiali e della Frattura") for students enrolled in the third year of the five-years Engineering Degree ("Laurea") in Civil, Materials and Nuclear Engineering, 1996/97, 1997/98 (Prof. G. Maier).

 

  • Teacher of the Course "Mechanics of Materials and Structures" ("Scienza delle Costruzioni") offered at Politecnico di Bari, Faculty of Engineering at Taranto, to students enrolled in the third year of the five-years Engineering Degree ("Laurea"), 1998/1999, 1999/2000, 2000/2001.
  • One of the Lecturers of the Permanent Education Program at Politecnico di Milano, Course on: "Computational Methods in Structural Engineering: Inelasticity, Damage, Fracture and Failure Analyses" ("Metodi di Calcolo dell'Ingegneria Strutturale: Analisi Anelastiche, a Danneggiamento, Frattura e Collasso"), Dept. of Structural Engineering, October 6-9, 1998.
  • Teacher of the Mini-Course "On the Constitutive Formulations of Anisotropic Elastic Damage. Part I: Secant Laws and Damage-Effect Tensors. Part II: Dual Orthotropic Damage-Effect Tensors with Complementary Structures" offered at the Technical University of Catalunya, Barcelona, Spain, 17-22 September 2001 in the framework of a Socrates/Erasmus program between the Escuela de Caminos Canales y Puertos (ETSECCPB-UPC) and Politecnico di Bari.
  • One of the Lecturers of the Continuing Education Course on: "From Design to Finite Element Modeling of Structural Components" ("Dal Disegno alla Modellazione agli Elementi Finiti di Componenti Strutturali"), University of Bergamo, Faculty of Engineering at Dalmine (June 20-21, 2002; June 18-20, 2003; June 30-July 2, 2004; June 15-17, 2005). Contribution on "Some Fundamental Notions on the Finite Element Method in Mechanics of Solids" ("Alcune nozioni fondamentali sul metodo degli elementi finiti in meccanica dei solidi").
  • Lecturer on "Statics of Self-Sustaining Rods" ("Statica di aste autoportanti''), within the course "Innovative Building Technologies'' ("Tecnologie Innovative per l'Edilizia"), prof. A. Pizzigoni, Università di Bergamo, Facoltà di Ingegneria (Dalmine), October 25, 2005.
  • Teacher of institutional courses offered at the University of Bergamo, Faculty of Engineering (Dalmine):
    • Course of  "Mechanics of Materials and Structures" ("Scienza delle Costruzioni") for students enrolled in the third year of the five-year Engineering Degree ("Laurea") in Management and Production Engineering, 2001/2002.
    • Course of  "Mechanics of Materials and Structures" ("Scienza delle Costruzioni"), 5 credits, for students enrolled in the third year of the three-year Engineering Degree ("Laurea triennale") in Management and Production Engineering, 2002/2003.
    • Course of  "Mechanics of Materials and Structures" ("Scienza delle Costruzioni"), 5 credits, for students enrolled in the second year of the three-year Engineering Degree ("Laurea triennale") in Building Engineering and for students enrolled in the third year of the "Laurea triennale" in Management and Production Engineering, 2003/2004, 2004/2005, 2005/2006, 2006/2007.
    • Course of  "Mechanics of Materials and Structures" ("Scienza delle Costruzioni"), 7.5 credits, for students enrolled in the third year of the three-year Engineering Degree ("Laurea triennale") in Building Engineering, 2008/2009, 2009/2010.
    • Course of  "Mechanics of Materials and Structures" ("Scienza delle Costruzioni"), 5 credits, for students enrolled in the second year of the three-year Engineering Degree ("Laurea triennale") in Mechanical Engineering, 2001/2002, 2002/2003, 2003/2004, 2004/2005, 2005/2006, 2006/2007, 2007/2008.
    • Course of  "Complements of Mechanics of Materials and Structures" ("Complementi di Scienza delle Costruzioni"), 5 credits, for graduate students enrolled in the first year of the two-year Engineering Degree ("Laurea Specialistica") in Mechanical Engineering, 2003/2004, 2004/2005, in Building Engineering and in Mechanical Engineering, 2005/2006, 2006/2007, 2007/2008, 2008/2009.
    • Course of  "Foundamentals of Dynamics and Instability of Structures" ("Fondamenti di Dinamica e Instabilità delle Strutture"), 5 credits, for graduate students enrolled in the first year of the two-year Engineering Degree ("Laurea Specialistica") in Building Engineering, 2005/2006, 2006/2007, 2007/2008, 2008/2009.
  • Responsible for the area Mechanics of Materials and Structures ("Scienza delle Costruzioni") of all teaching activities at the University of Bergamo, Faculty of Engineering (Dalmine), including, beyond the above:

–  Course of "Tutoring of Mechanics of Materials and Structures" ("Tutoring di Scienza delle Costruzioni"), Building, Management and Mechanical Engineering, 2001/2002-2009/2010;

–  Module of "Elearning of Mechanics of Materials and Structures" ("Elearning di Scienza delle Costruzioni"), Building, Management and Mechanical Engineering, 2005/2006-2009/2010;

–  Course of "Mechanics of Materials and Structures" ("Scienza delle Costruzioni"), Mechanical Engineering, 5 credits, 2008/2009 and 9 credits 2009/2010;

–  Course of "Computational Mechanics of Solids" ("Meccanica dei Solidi Computazionale"), Building Engineering and Mechanical Engineering, 2.5 credits (choice course), 2006/2007-2009/2010;

–  Course of "Computational Mechanics of Structures" ("Meccanica delle Strutture Computazionale"), Building Engineering, 2.5 credits (choice course), 2007/2008-2009/2010.

 

  • Gave thirty-two research seminars or conference presentations in national and international institutions.

 

RESEARCH ACTIVITIES

Past and present research activities were performed independently or as part of Academic and Industrial International Research Programs in the area of Mechanics of Materials and Structures. The original contributions are along the following consolidated three main guidelines:

  • Constitutive modeling of quasi-brittle materials: plasticity, elastic degradation and damage, multi-dissipation (e.g. multi-surface plasticity and elastoplastic coupling), multi-phase media (e.g. fully and partially fluid-saturated porous and fissured media), anisotropic elastic and inelastic behavior, orthotropic damage, composites (e.g. syntactic foams).
  • Material instability phenomena: localization of inelastic strains and dissipation processes into narrow bands. Strain-softening localization: numerical and analytical derivations of strain localization characteristics. Strain-rate-softening localization (Portevin-Le Chatelier effect): theoretical and numerical modeling.
  • Structural instability: computational techniques for the regularization of numerical responses of damaged materials (removal of mesh dependence induced by the appearance of strain localization) through fracture-energy-based regularization, non-local and second-order gradient damage, mixed load/displacement control ("arc-length") and special finite elements (e.g. with incompatible modes).

 

Further recent research themes developed also in the framework of Laurea Theses carried-out at the University of Bergamo are more focused on the area of Structures:

  • Biomechanical modelling of the human corneal shell, with specific reference to the simulation of corneal refractive surgeries.
  • Structural analysis of historic construction, with specific reference to the modeling of the iron bridge of Paderno d'Adda (1889).
  • Statics of masonry arches based on limit analysis and on the Discrete Element Method (DEM); started also in the lab the building of low-scale experimental models.
  • Vibration control in dynamics through the optimal tuning of passive Tuned Mass Damper (TMD) devices.
  • Modeling of elastoplastic torsion tests on metal specimens at finite strain, accounting for the so-called Swift effect (axial length variation of the specimen); research theme of interest at a local industrial contact.
  • Parametric identification of the mechanical behaviour of metallic materials through procedures and algorithms of inverse analysis.


Research keywords:

–  Materials: quasi-brittle materials, geomaterials, composite materials, metals.

–  Material modelling: constitutive models, elastoplasticity, elastic degradation, damage, orthotropic damage, anisotropy, fluid-saturated porous media.

–  Material and structural failure: failure mechanics, material instabilities, strain localization, Portevin-Le Chatelier (PLC) effect, regularization of finite element computations.

–  Structural themes: finite element simulations of corneal refractive surgeries, structural analysis of historic construction, modeling of the Paderno d'Adda bridge (1889), statics of masonry arches with Limit Analysis and Discrete Element Method (DEM), tuning of Tuned Mass Dampers, modeling of elastoplastic torsion with Swift effect; parameter identification by inverse analysis.

 

TEN SELECTED JOURNAL PAPERS (FULL LIST)

 

 

 

 

 

 

  • Rizzi, E. and Carol, I. (2001), "A formulation of anisotropic elastic damage using compact tensor formalism", Journal of Elasticity, 64(2-3), 85-109.

 

 

 

  • Rizzi, E. and Carol, I. (2007), "Secant stress/strain relations of orthotropic elastic damage with dual properties",  Archives of Mechanics, 59(2), 133-171.

 

TEN SELECTED PROCEEDINGS PAPERS (FULL LIST)

  • Rizzi, E. and Willam, K. (1994), "Spatial discretization of strain localization", Computer Aided Assessment and Control, Proc. of LOCALIZED DAMAGE 94, Udine, Italy, June 21-23, 1994, Eds M.H. Aliabadi, A. Carpinteri, S. Kaliszky and D.J. Cartwright, Computational  Mechanics Publications, Southampton,  U.K., 1994, 553-560.

 

 

  • Rizzi, E. and Loret, B. (1997), "Strain localization in transversely isotropic elastic-plastic solids", Computational Plasticity: Fundamentals and Applications, Proc. of Complas V, Barcelona, Spain, March 17-20, 1997, Eds D.R.J. Owen, E. Oñate and E. Hinton, Pineridge Press, Swansea, U.K., 1997, 647-654.

 

  • Rizzi, E. and Loret, B. (1997), "Elastic-plastic models for fluid-saturated porous media and inception of strain localisation", Multiple Scale Analyses and Coupled Physical Systems, Proc. of Saint-Venant Symposium, Paris, France, August 28-29, 1997, Presses de l'École Nationale des Ponts et Chaussées, Paris, France, 1997, 569-576.

 

  • Rizzi, E. and Loret, B. (1998), "Constitutive modeling of fluid-saturated porous media with degrading elastic properties", Poromechanics, Proc. of Biot Conference on Poromechanics, September 14-16, 1998, Louvain-la-Neuve, Belgium, Eds J.-F. Thimus at al., Balkema, Rotterdam, Netherlands, 1998, 141-146.

 

 

 

  • Rizzi, E. and Sangalli, S. (2007), "Biomechanical Simulations of Corneal Refractive Surgery", Modelling of Heterogeneous Materials with Applications in Construction and Biomedical Engineering (MHM 2007), ECCOMAS Thematic Conference, Prague, Czech Republic, June 25-27, 2007, Eds. M. Jirásek, Z. Bittnar and H. Mang, Book+CD-ROM Proc., ISBN: 978-80-01-03762-1, 326-327.

 

 

  • Rizzi, E., Brescianini, D. and Scotti, M. (2009), "On the optimal tuning of tuned mass dampers in structural systems", ECCOMAS Thematic Conference - 2nd Int. Conf. on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2009), M. Papadrakakis, N.D. Lagaros, M. Fragiadakis (Eds.), Rhodes, Greece, 22-24 June 2009, Book of Abstracts ISBN:978-960-254-682-6, p. 254; CD-ROM Proceedings, CD532, 24 pages.

 

Last update September 2009.