Dr. Ricardo A. Lebensohn

 

 

INVITED LECTURES

 

82. R.A. Lebensohn: "FFT-based models for mesoscale materials science of polycrystalline metals". Invited Lecture. 2017 MRS Spring Meeting, Phoenix, AZ, April 2017.

81. R.A. Lebensohn and A. Needleman: "Accounting for the micromechanical effect of grain boundaries using a new FFT-based strain-gradient polycrystal plasticity formulation". Invited Lecture. 2017 TMS Annual Meeting & Exhibition, San Diego, CA, February 2017.

80. R.A. Lebensohn and R. Pokharel: "Recent applications of micromechanical modeling directly coupled with advanced characterization techniques of polycrystalline materials". Invited Lecture. 2017 TMS Annual Meeting & Exhibition, San Diego, CA, February 2017.

79. R.A. Lebensohn: "Multiscale modelling of microstructure evolution in polycrystalline materials: physical and numerical challenges". Invited Lecture. 8th Multiscale Materials Modelling International Conference (MMM 2016), Dijon, France, October 2016.

78. R.A. Lebensohn, R. Pokharel and B. Clausen: "Towards an integrated experimental/modelling framework to account for microstructural effects on damage under extreme conditions". MaRIE External Advisory Board Meeting, Los Alamos National Laboratory, Los Alamos, NM, September 2016.

77. R.A. Lebensohn: "In-situ 3-D characterization and direct micromechanical modelling for identification of microstructure-property relationships in polycrystalline materials". Department Seminar. Department of Materials Engineering, University of British Columbia, Vancouver, Canada, September 2016.

76. R.A. Lebensohn and R. Pokharel: "Towards an integrated experimental/modelling framework to account for microstructural effects on damage under extreme conditions". Invited Lecture. IUTAM Symposium on Integrated Computational Structure-Material Modeling of Deformation and Failure under Extreme Conditions. Baltimore, MD, June 2016.

75. R.A. Lebensohn and A. Needleman: "Accounting for the effect of dislocations in continuum plasticity by means of a non-local spectral formulation". Invited Lecture. 2016 SIAM Conference on Mathematical Aspects of Materials Science. Philadelphia, PA, May 2016.

74. R.A. Lebensohn: "FFT-based micromechanical modeling of plastically deforming polycrystalline materials". Materials and Surface Engineering Colloquium, Danish Technical University (DTU), Copenhagen, Denmark, March 2016.

73. R.A. Lebensohn and A. Needleman: "Numerical implementation of non-local polycrystal plasticity using fast Fourier transforms". Keynote Lecture. International Symposium on Plasticity 2016, Kona, HI, January 2016.

72. R.A. Lebensohn and R. Pokharel: "Discovery and numerical tractability of microstructure-property relationships through micromechanical modeling of polycrystalline materials". Invited Lecture. 2015 TMS Annual Meeting & Exhibition, Orlando, FL, March 2015.

71. R.A. Lebensohn et al.: "Towards the computational design of damage-tolerant materials: characterization and modeling of microstructural effects on porosity evolution of polycrystalline metals". Invited Lecture. 2015 TMS Annual Meeting & Exhibition, Orlando, FL, March 2015.

70. R.A. Lebensohn: "Microstructure based and experimentally validated modeling of ductile damage in polycrystalline materials". Keynote Lecture. International Symposium on Plasticity 2015, Montego Bay, Jamaica, January 2015.

69. R.A. Lebensohn: "Identification of preferential sites for void nucleation and growth in polycrystals via in-situ 3-D characterization and micromechanical modelling". Invited Lecture. AmeriMech Symposium: Material Property Identification, Austin, TX, December 2014.

68. R.A. Lebensohn: "Fast Fourier Transform-based micromechanical modeling with direct input from 3-D images of polycrystalline microstructures". CLASSE Seminar. Cornell High Energy Synchrotron Source (CHESS), Ithaca, NY, November 2014.

67. R.A. Lebensohn: "Fast Fourier Transform-based micromechanical modeling with direct input from 3-D images of polycrystalline microstructures". Invited Lecture. 2nd International Congress on 3D Materials Science (3DMS 2014), Annecy, France, June 2014.

66. R.A. Lebensohn: "On how Suquet et al's FFT-based formulation is changing the way polycrystal plasticity is modeled and microstructural measurements are interpreted and utilized". Invited Lecture. International Symposium on length scale in solid mechanics: mathematical and physical aspects. Paris, France, June 2014.

65. R.A. Lebensohn: "Micromechanical modeling of polycrystalline materials from 3-D microstructural images". Semiplenary Lecture. 8th Annual Meeting of the Argentinian Physics Association (AFA), Bariloche, Argentina, September 2013.

64. R.A. Lebensohn: "Fast Fourier Transform-based micromechanical modeling of polycrystals with direct input from microstructural images". X-Ray Science Division (XSD) Seminar. Advanced Photon Source (APS), Argonne, IL, August 2013.

63. R.A. Lebensohn: "Microstructural effects on ductile damage of polycrystalline materials". Invited Lecture. IUTAM Symposium on Materials and Interfaces under High Strain-Rate and Large Deformation, Metz, France, June 2013.

62. R.A. Lebensohn: "Fast Fourier Transform-based micromechanical modeling of polycrystals with direct input from microstructural images". Invited Lecture. European Workshop on Methods for 3-D Microstructural Studies. Metz, France, June 2013.

61. R.A. Lebensohn: Material models to capture microstructural effects on strength, anisotropy and damage". 2013 Materials Capability Review, Los Alamos National Laboratory, Los Alamos, NM, May 2013.

60. R.A. Lebensohn: "Fast Fourier Transform-based micromechanical modeling of polycrystals with direct input from 3-D microstructural images". Invited Lecture. 2013 TMS Annual Meeting & Exhibition, San Antonio, TX, March 2013.

59. R.A. Lebensohn: "Microstructural effects on ductile damage of polycrystalline materials". Invited Lecture. 2013 TMS Annual Meeting & Exhibition, San Antonio, TX, March 2013.

58. R.A. Lebensohn: "Micromechanical modelling of polycrystals using Fast Fourier Transforms beyond incompressible local viscoplasticity". Keynote Lecture. International Symposium on Plasticity 2013, Nassau, Bahamas, January 2013.

57. R.A. Lebensohn: "Mesoscale mechanics of porous polycrystalline materials". Invited Lecture. 49th Annual Technical Meeting of the Society of Engineering Science (SES2012) Atlanta, GA, October 2012.

56. R.A. Lebensohn: "Different strategies to model microstructural effects on the dilatational plastic behavior of porous polycrystalline materials". Keynote Lecture. Symposium on Homogenization Strategies for Multiphase Materials, European Solid Mechanics Conference, Graz, Austria, July 2012.

55. R.A. Lebensohn: "Recent advances in Fast Fourier transform-based micromechanical modeling of polycrystals". Invited Lecture. 3rd International Symposium on Computational Mechanics of Polycrystals (CMCn2012), Bad Honnef, Germany, June 2012.

54. R.A. Lebensohn: "Multiscale computational homogenization of porous polycrystalline materials". Invited Lecture. EUROMECH Colloquium on Multi-scale Computational Homogenization of Heterogeneous Structures and Materials, Marne-la-Vallee, France, March 2012.

53. R.A. Lebensohn: "Spectral elasto-viscoplastic formulation for the prediction of micromechanical fields with direct input and validation from voxelized data". Invited Lecture. 2012 TMS Annual Meeting & Exhibition, Orlando, FL, USA, March 2012.

52. R.A. Lebensohn: "Micromechanical modelling of polycrystals using Fast Fourier Transforms". PRISM Seminar. Center for Prediction of Reliability, Integrity and Survivability of Microsystems (PRISM), Purdue University, West Lafayette, IN, USA, January 2012.

51. R.A. Lebensohn: "Microstructural effects on void growth in polycrystalline materials". Keynote Lecture. International Symposium on Plasticity 2012, San Juan, Puerto Rico, January 2012.

50. R.A. Lebensohn: "FFT-based methods: towards direct input and validation of micromechanical models using 3-D microstructural data". Invited Lecture. Workshop on high-energy x-ray diffraction experiments and detailed computational analyses for understanding multiscale phenomena in crystalline materials, Advance Photon Source (APS), Chicago, IL, USA, October 2011.

49. R.A. Lebensohn: "Modeling ductile damage of polycrystalline materials". Keynote Lecture. IUTAM Symposium on Linking Scales in Computations: from Microstructure to Macro-scale Properties, Pensacola, FL, USA, May 2011.

48. R.A. Lebensohn: "Modelling space-resolved evolution of internal mechanical fields in 3-D polycrystalline microstructures using an elasto-viscoplastic formulation based on Fast Fourier Transforms". Keynote Lecture. International Symposium on Plasticity 2011, Puerto Vallarta, Mexico, January 2011.

47. R.A. Lebensohn: "Micromechanics of polycrystals: full-field computations and second-order homogenization approaches". GALCIT Colloquium. Graduate Aerospace Laboratories California Institute of Technology (GALCIT), Caltech, Pasadena, CA, USA, October 2010.

46. R.A. Lebensohn: "Micromechanical modelling of polycrystals: can we keep up with emerging 3-D characterization techniques?" Department Seminar. Materials Department, RISOE National Laboratory, Roskilde, Denmark, September 2010.

45. R.A. Lebensohn: "Dilatational viscoplasticity of porous polycrystalline materials". Invited Lecture. Workshop "Materiaux Heterogenes et Composites", in honor of Andre Zaoui, Briancon, France, September 2010.

44. R.A. Lebensohn: "Modeling LPO evolution using crystal plasticity at conditions relevant to the Earth's interior: exploring the role of dislocation climb". Invited Lecture, 2010 Gordon Research Conference on Rock Deformation, Tilton School, NH, USA, August 2010.

43. R.A. Lebensohn: "Micromechanics of polycrystals: full-field computations and second-order homogenization approaches". ICAMS Seminar, Interdisciplinary Center for Advanced Materials Simulation (ICAMS), Bochum, Germany, May 2010.

42. R.A. Lebensohn: "Crystal Plasticity Fast Fourier Transform-based formulation: theory and applications". F2M Seminar, Federation Francilienne de Mecanique (F2M), Paris, France, May 2010.

41. R.A. Lebensohn: "Micromechanics of polycrystals: full-field computations and second-order homogenization approaches". IWM Seminar, Fraunhofer-Institut fuer Werkstoffmechanik (IWM), Freiburg, Germany, April 2010.

40. R.A. Lebensohn: "Micromechanics of strongly heterogeneous polycrystals: crystal plasticity FFT-based computations vs. homogenization approaches". Invited Lecture. 2nd International Symposium on Computational Mechanics of Polycrystals (CMCn2010), Bad Honnef, Germany, March 2010.

39. R.A. Lebensohn: "Numerical experiments: crystal plasticity and FFT-based calculations" Invited Lecture. 2010 MECAMAT (French Group of Mechanics of Materials) National Colloquium, Aussois, France, January 2010.

38. R.A. Lebensohn: "Dilatational viscoplasticity of porous polycrystalline materials". Keynote Lecture. International Symposium on Plasticity 2010, St Kitts, January 2010.

37. R.A. Lebensohn: "Heterogeneous microstructures and macroscopic creep behavior of polycrystalline ice". Invited Presentation. American Geophysical Union (AGU) 2009 Fall Meeting, San Francisco, USA, December 2009.

36. R.A. Lebensohn: "Micromechanics of polycrystals: full-field computations vs. high-order homogenization approaches". Invited lecture. Materials Science and Technology 2009 (MS&T'09) Conference & Exhibition, Pittsburgh, PA, USA, October 2009.

35. R.A. Lebensohn and P. Ponte Castaneda: "Dilatational viscoplastic behavior of polycrystalline materials with cavities at grain boundaries". Invited Lecture. Materials Science and Technology 2009 (MS&T'09) Conference & Exhibition, Pittsburgh, PA, USA, October 2009.

34. R.A. Lebensohn: "Dilatational plastic behavior of polycrystalline materials with intergranular cavities". DCAMM Seminar. Danish Centre for Applied Mathematics and Mechanics, (DCAMM), Copenhagen, Denmark, September 2009.

33. R.A. Lebensohn: "Recent advances in polycrystal modelling". International Conference on Processing and Manufacturing of Advanced Materials (THERMEC 2009), Berlin, Germany, August 2009.

32. R.A. Lebensohn: "Dilatational plastic behavior of polycrystals with intergranular cavities". Department Seminar. Department of Mechanical and Materials Engineering, Queens University, Kingston, Canada, July 2009.

31. R.A. Lebensohn, P. Ponte Castaneda, M.I Idiart and P.G. Vincent: "Dilatational viscoplasticity of polycrystalline materials: homogenization estimates vs full-field results". Keynote Lecture. Third US-France Symposium on Advances in Bridging Scales in Computation. From Microstructure to Macroscale Properties of Heterogeneous Materials. Shalimar, FL, USA, April 2009.

30. R.A. Lebensohn: "Image-based computation of plastic strain heterogeneity and local texture evolution in polycrystalline materials". Keynote lecture. International Symposium on Plasticity 2009, St Thomas, US Virgin Islands, January 2009.

29. R.A. Lebensohn: "Micromechanical modeling of the plastic deformation polycrystalline materials". Invited Seminar. Laboratoire de Modelisation et Simulation Numerique en Mecanique, Universite de Aix-Marseille III, Marseille, France, November 2008.

28. R.A. Lebensohn, R. Brenner, O. Castelnau and A.D. Rollett: "Predictions and experimental validation of the development of intragranular misorientations in copper under tension using direct input from OIM images". Invited lecture. 15th International Conference on Textures of Materials (ICOTOM 15), Pittsburgh, PA, USA, June 2008.

27. R.A. Lebensohn: "Micromechanical modeling of the plastic deformation polycrystalline materials: full-field computations vs. homogenization approaches". Invited Seminar. Research and Engineering Education Facility, University of Florida, Shalimar, FL, USA April 2008.

26. R.A. Lebensohn, R. Brenner, O. Castelnau and A.D. Rollett: "Image-based computation of subgrain texture evolution in copper using input from OIM data and a FFT-based numerical technique". Invited Lecture. International Symposium on Computational Mechanics of Polycrystals, Bad Honnef, Germany, February 2008.

25. R.A. Lebensohn: "Image-based computation of the mechanical behavior of heterogeneous materials using direct input from experimental data and a numerical technique based on Fast Fourier Transforms". Invited Seminar, Materials Laboratory, Wright-Patterson Air Force Research Laboratory, Dayton, OH, USA, January 2008.

24. R.A. Lebensohn: "Towards improved multiscale modelling of viscoplastic metals and geomaterials: full-field and statistical approaches at the mesoscale". Department Colloquium, Physics Department, New Mexico State University, Las Cruces, NM, USA, November 2007.

23. R.A. Lebensohn, C.N. Tome and P. Ponte Castaneda: "Multiscale modelling of viscoplastic polycrystals using statistical approaches at the mesoscale". Invited Lecture, IUTAM Symposium on Multiscale Plasticity of Crystalline Materials, Eindhoven, The Netherlands, November 2007.

22. R.A. Lebensohn: "Micromechanical modeling of polycrystalline materials: full-field computations vs. homogenization approaches". Computational Mechanics Seminar, Facultad de Ingenieria, Universidad de Buenos Aires, Argentina, July 2007.

21. R.A. Lebensohn: "Multiscale modelling of mechanical properties of materials: statistical and full-field approaches for the prediction of the micromechanical response of polycrystalline aggregates". Department Colloquium, Departamento de Fisica, Facultad de Ciencias Exactas, Universidad de Buenos Aires, Argentina, July 2007.

20. R.A. Lebensohn: "Micromechanical modeling of polycrystalline materials: full-field computations vs. homogenization approaches". Department Seminar, Departamento de Ciencia de Materiales, Universidad Politecnica de Madrid, Spain, June 2007.

19. R.A. Lebensohn: "Modelling subgrain texture evolution in polycrystalline copper with direct input from microstructure images and assessment of nonlinear homogenization approaches using a full-field formulation based on Fast Fourier Transforms". Laboratory Seminar, Laboratoire de Mecanique et d'Acoustique, Marseille, France, June 2007.

18. R.A. Lebensohn: "Multiscale modelling of polycrystals: full-field and statistical approaches at the mesoscale". Keynote Lecture. First US-France Symposium on Advances in Bridging Scales in Computation. From Microstructure to Macroscale Properties of Heterogeneous Materials. Shalimar, FL, USA. March 2007.

17. R.A. Lebensohn and C.N. Tome: "Self-consistent predictions of the mechanical behavior of viscoplastic polycrystals accounting for intragranular field fluctuations". Invited talk. 2007 TMS Annual Meeting & Exhibition, Orlando, FL, USA, February 2007.

16. R.A. Lebensohn: "Towards improved multiscale modelling of viscoplastic geomaterials: full-field and statistical approaches at the mesoscale". Invited Seminar. University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, USA, December 2006.

15. R.A. Lebensohn: "Full-field and statistical approaches for the prediction of mechanical behavior and microstructure evolution of viscoplastic polycrystals". Department Seminar. University of California San Diego, Department of Mechanical and Aerospace Engineering, La Jolla, CA, USA, December 2006.

14. R.A. Lebensohn: "A formulation based on Fast Fourier Transforms for the calculation of the micromechanical behavior of plastically deformed 3-D polycrystals". Department Seminar. Carnegie-Mellon University, Department of Materials Science and Engineering, Pittsburgh, PA, USA, October 2006.

13. R.A. Lebensohn: "A formulation based on Fast Fourier Transforms for the calculation of the micromechanical behavior of plastically deformed 3-D polycrystals". Invited Seminar. Centre des Materiaux, Ecole de Mines de Paris, Evry, France, April 2006.

12. R.A. Lebensohn, C.N. Tome and P. Ponte Castaneda: "Improving the self-consistent predictions of texture development of polycyrystals incorporating intragranular field fluctuations". Invited Lecture, 14th International Conference on Textures of Materials (ICOTOM 14), Leuven, Belgium, July 2005.

11. R.A. Lebensohn: "Homogenization of the dilatational viscoplastic behavior of anisotropic porous polycrystal". Laboratory Seminar. Ecole Polytechnique, Laboratoire de Mecanique des Solides, Palaiseau, France, June 2005.

10. R.A. Lebensohn: "Micromechanical modeling of polycrystals at different scales". Department Seminar. Rutgers University, Department of Mechanical and Aerospace Engineering, Piscataway, NJ, USA, November 2001.

9. R.A. Lebensohn: "Micromechanical modeling of polycrystals at different scales". Department Seminar, University of Pennsylvania, Department of Mechanical Engineering and Applied Mechanics, Philadelphia, PA, USA, November 2001.

8. R.A. Lebensohn: "Micromechanical modeling of polycrystals at different scales". Invited Seminar. California Institute of Technology, Division of Engineering and Applied Science, Pasadena, CA, USA, May 2001.

7. R.A. Lebensohn: "N-site modelling of a viscoplastic polycrystal using Fast Fourier Transform". Invited Seminar. Laboratoire de Genie Physique et Mecanique de Materiaux, Grenoble, France, July 2000.

6. R.A. Lebensohn: "Modelling the Mechanical Behavior of gamma-TiAl-Based Polysinthetically Twinned Crystals and Polycrystals". Invited Lecture. International Workshop on Micromechanics of Multiphase Materials, Hamburg, Germany, September 1998.

5. R.A. Lebensohn: "Multiscale modelling of polycrystal plasticity". Invited Seminar. Universite Paris-Nord, Laboratoire des Proprietes Mecaniques et Thermodynamiques des Materiaux, Villetaneuse, France, June 1998.

4. R.A. Lebensohn: "Recent improvements and applications of selfconsistent models in polycrystal plasticity". Invited Lecture. Gilles Canova Memorial Meeting, Autrans, France, June 1998.

3. R.A. Lebensohn: "Selfconsistent methods for the calculation on mechnical properties of polycrystals: fundaments and applications" Invited Seminar. Techint, Centro de Investigacion Industrial (CINI), Campana, Argentina, August 1997.

2. R.A. Lebensohn: "Selfconsistent methods for the calculation on mechnical properties of polycrystals: fundaments and applications". Invited Seminar. Balseiro Institute, Computational Mechanics Division. Bariloche, Argentina, May 1997.

1. R.A. Lebensohn: "Crystal plasticity of two-phase materials". Invited Lecture. 6th International Workshop on Computational Mechanics of Materials, Hamburg, Germany, October 1996.

 

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