Home
Research
People
Publications
Presentations
Facilities
Teaching

ETH Zürich Kochmann Research Group Kochmann Research Group

Journal publications

  1. A. Vidyasagar, W. L. Tan, D. M. Kochmann. Predicting the effective response of bulk polycrystalline ferroelectric ceramics via improved spectral phase field methods, J. Mech. Phys. Solids 106 (2017), 133-151.

  2. W. L. Tan, D. M. Kochmann. An effective constitutive model for polycrystalline ferroelectric ceramics: theoretical framework and numerical examples, Comp. Mater. Sci. 136 (2017), 223-237.

  3. M. Frazier, D. M. Kochmann. Atomimetic mechanical structures with nonlinear topological domain evolution kinetics, Adv. Mater. 29 (2017), 1605800.

  4. A. Zelhofer, D. M. Kochmann. On acoustic wave beaming in two-dimensional structural lattices, Int. J. Solids Struct. 115-116 (2017), 248-269.

  5. I. Tembhekar, J. S. Amelang, L. Munk, D. M. Kochmann. Automatic adaptivity in the fully-nonlocal quasicontinuum method for coarse-grained atomistic simulations, Int. J. Numer. Meth. Engng. 110 (2017), 878900.

  6. R. Getz, D. M. Kochmann, G. Shmuel. Voltage-controlled complete stopbands in two-dimensional soft dielectrics, Int. J. Solids Struct. 113-114 (2017), 24-36.

  7. P. Junker, D. M. Kochmann. Damage-induced mechanical damping in phase-transforming composites materials, Int. J. Solids Struct. 113-114 (2017), 132-146.

  8. E. Cherin, J. M. Melis, R. W. Bourdeau, M. Yin, D. M. Kochmann, F. S. Foster, M. G. Shapiro. Acoustic behavior of Halobacterium salinarum gas vesicles in the high frequency range: experiments and modeling, Ultrasound Med. Biol. 43 (2017), 1016-1030.

  9. Y. Chang, J. T. Lloyd, R. Becker, D. M. Kochmann. Modeling microstructure evolution in magnesium: comparison of detailed and reduced-order kinematic models, Mechanics of Materials 108 (2017), 40-57.

  10. D. Maresca, A. Lakshmanan, A. Lee-Gosselin, J. Melis, Y.-L. Ni, R. Bourdeau, D. M. Kochmann, M. Shapiro. Nonlinear Ultrasound Imaging of Nanoscale Acoustic Biomolecules, Appl. Phys. Lett. 110 (2017), 073704.

  11. M. J. Frazier, D. M. Kochmann. Band gap transmission in periodic, bistable mechanical systems, J. Sound Vibration 388 (2017), 315-326.

  12. C. S. Wojnar, D. M. Kochmann. Linking internal dissipation mechanisms to the effective complex viscoelastic moduli of ferroelectrics, J. Appl. Mech. 84 (2017), 021006.

  13. A. Desmoulins, D. M. Kochmann. Local and nonlocal continuum modeling of inelastic periodic networks applied to stretching-dominated trusses, Comput. Methods Appl. Mech. Engng. 313 (2017), 85-105.

  14. J. R. Raney, N. Nadkarni, C. Daraio, D. M. Kochmann, J. A. Lewis, K. Bertoldi. Stable propagation of mechanical signals in soft media using stored elastic energy, Proc. Natl. Acad. Sci. 113 (2016), 9722-9727.

  15. N. Nadkarni, A. F. Arrieta, C. Chong, D. M. Kochmann, C. Daraio. Unidirectional Transition Waves in Bistable Lattices, Phys. Rev. Lett. 116 (2016), 244501.

  16. D. M. Kochmann, W. J. Drugan. An infinitely-stiff elastic system via a tuned negative-stiffness component stabilized by rotation-produced gyroscopic forces, Appl. Phys. Lett. 108 (2016), 261904.

  17. N. Nadkarni, C. Daraio, R. Abeyaratne, D. M. Kochmann. A universal energy transport law for dissipative and diffusive phase transitions, Phys. Rev. B 93 (2016), 104109.

  18. A. Desmoulins, A. J. Zelhofer, D. M. Kochmann. Auxeticity in truss networks and the role of bending vs. stretching deformation, Smart Mater. Struct. 25 (2016), 054003.

  19. L. R. Meza, A. J. Zelhofer, N. A. Clarke, A. J. Mateos, D. M. Kochmann, J. R. Greer. Resilient 3D hierarchical architected metamaterials (cover article), Proc. Natl. Acad. Sci. 112 (2015), 11502-11507.

  20. J. S. Amelang, D. M. Kochmann. Surface effects in nanoscale structures investigated by a fully-nonlocal energy-based quasicontinuum method, Mechanics of Materials 90 (2015), 166-184.

  21. J. S. Amelang, G. N. Venturini, D. M. Kochmann. Summation rules for a fully-nonlocal energy-based quasicontinuum method, J. Mech. Phys. Solids 82 (2015), 378-413.

  22. Y. Chang, D. M. Kochmann. A variational constitutive model for slip-twinning interactions in single- and polycrystalline magnesium, Int. J. Plasticity 73 (2015), 39-61.

  23. J.-B. le Graverend, C. S. Wojnar, D. M. Kochmann. Broadband Electromechanical Spectroscopy: characterizing the dynamic mechanical response of viscoelastic materials under temperature and electric-field control in a vacuum environment, J. Mater. Sci. 50 (2015), 3656-3685.

  24. C. S. Wojnar, J.-B. le Graverend, D. M. Kochmann. Broadband control of the viscoelasticity of ferroelectrics via domain switching, Appl. Phys. Lett. 105 (2014), 162912.

  25. N. Nadkarni, C. Daraio, D. M. Kochmann. Dynamics of a periodic structure containing bistable elastic elements: from elastic to solitary wave propagation, Phys. Rev. E 90 (2014), 023204.

  26. F. Fritzen, D. M. Kochmann. Material instability-induced extreme damping in composites: a computational study, Int. J. Solids Struct. 54 (2014), 4101-4112.

  27. D. M. Kochmann, G. W. Milton. Rigorous bounds on the effective moduli of composites and inhomogeneous bodies with negative-stiffness phases, J. Mech. Phys. Solids 71 (2014), 46-63.

  28. B. Klusemann, D. M. Kochmann. Microstructural pattern formation in crystal plasticity during cyclic loading: relaxation vs. gradient plasticity, Comput. Methods Appl. Mech. Engrg. 278 (2014), 765-793.

  29. D. M. Kochmann, G. N. Venturini. A meshless quasicontinuum method based on local maximum-entropy interpolation, Mod. Sim. Mat. Sci. Eng. 22 (2014), 034007.

  30. C. S. Wojnar, D. M. Kochmann. A negative-stiffness phase in elastic composites can produce stable extreme effective dynamic but not static stiffness, Philos. Mag. 94 (2014), 532-555.

  31. D. M. Kochmann. Stable extreme damping in viscoelastic two-phase composites with non-positive-definite phases close to the loss of stability, Mech. Res. Comm. 58 (2014), 36-45.

  32. S. Krödel, T. Delpero, A. Bergamini, P. Ermanni, D. M. Kochmann. 3D auxetic microlattices with independently-controllable acoustic band gaps and quasi-static elastic moduli, Adv. Eng. Mater. 16 (2014), 357363.

  33. C. S. Wojnar, D. M. Kochmann. Stability of extreme static and dynamic bulk moduli of an elastic two-phase composite due to a non-positive-definite phase, Phys. Stat. Solidi B 251 (2014), 397-405.

  34. M. Espanol, D. M. Kochmann, S. Conti, M. Ortiz. A Γ-convergence analysis of the quasicontinumm method, Multiscale Model. Simul. 11 (2013), 766794.

  35. D. M. Kochmann, G. N. Venturini. Homogenized mechanical properties of auxetic composite materials in finite-strain elasticity, Smart Mater. Struct. 22 (2013), 084004.

  36. D. M. Kochmann, W. J. Drugan. Analytical stability conditions for elastic composite materials with a non-positive-definite phase, Proc. R. Soc. A 468 (2012), 2230-2254.

  37. D. M. Kochmann. Stability criteria for continuous and discrete elastic composites and the influence of geometry on the stability of a negative-stiffness phase, Cover Article, Phys. Status Solidi B 249 (2012), 13991411.

  38. K. Hackl, U. Hoppe, D. M. Kochmann. Generation and evolution of inelastic microstructures - an overview, GAMM Mitteilungen 35 (2012), 91-106.

  39. D. M. Kochmann, W. J. Drugan. Infinitely-stiff composite via a rotation-stabilized negative-stiffness phase, Appl. Phys. Lett. 99 (2011), 011909.

  40. D. M. Kochmann, K. Hackl. Time-continuous evolution of laminate microstructures in finite crystal plasticity: a variational approach, Continuum Mech. Thermodyn. 23 (2011), 63-85.

  41. D. M. Kochmann, K. Hackl. Influence of hardening on the cyclic behavior of laminate microstructures in finite crystal plasticity, Techn. Mech. 30 (2010), 387-400.

  42. D. M. Kochmann, W. J. Drugan. Dynamic stability analysis of an elastic composite material having a negative-stiffness phase, J. Mech. Phys. Solids 57 (2009), 1122-1138.

  43. D. M. Kochmann, K. C. Le. A continuum model for initiation and evolution of deformation twinning, J. Mech. Phys. Solids 57 (2009), 982-1002.

  44. D. M. Kochmann, K. C. Le. Plastic deformation of bicrystals within continuum dislocation theory, J. Math. Mech. Solids 14 (2009), 540-563.

  45. D. M. Kochmann, K. C. Le. A simple model for dynamic recrystallization during severe plastic deformation, Arch. Appl. Mech. 79 (2009), 579-586.

  46. D. M. Kochmann, K. C. Le. Dislocation pile-ups in bicrystals within continuum dislocation theory, Int. J. Plasticity 24 (2008), 2125-2147.

  47. T. M. Jaglinski, D. M. Kochmann, D. S. Stone, R. S. Lakes. Composite materials with viscoelastic stiffness greater than diamond, Science 315 (2007), 620-622.


Publications under review

  • L. Meza, G. Phlipot, C. M. Portela, A. Maggi, L. C. Montemayor, A. Comella, D. M. Kochmann, J. R. Greer. Redefining the mechanical property space of architected materials, submitted for publication (2016).

  • D. M. Kochmann, K. Bertoldi. Exploiting microstructural instabilities in solids and structures: from metamaterials to structural transitions, submitted for publication (2017).


Book chapters

  1. D. M. Kochmann, J. Amelang. The quasicontinuum method: theory and applications, in: C. R. Weinberger and G. J. Tucker (eds.), Multiscale Materials Modeling for Nanomechanics, Springer, New York (2016), pp. 159-195.

  2. C. Günther, D. M. Kochmann, K. Hackl. Rate-Independent versus Viscous Evolution of Laminate Microstructures in Finite Crystal Plasticity, in S. Conti, K. Hackl (eds.), Analysis and Computation of Microstructure in Finite Plasticity, Springer, Switzerland (2015), pp. 63-88.

  3. K. Hackl, U. Hoppe, D. M. Kochmann. Variational modeling of microstructures in plasticity, in K. Hackl, J. Schröder (eds.), Plasticity and Beyond, Springer, Wien (2014), pp. 65-129.

  4. D. M. Kochmann, K. Hackl. A variational alternative to the use of condensed energy in crystal plasticity based on the evolution of microstructure history, in: A. L. Claes (ed.), Evolution Equations, Nova Science Publishing (2011), pp. 363-372.

  5. D. M. Kochmann, K. C. Le. Continuum dislocation theory and related size effects in crystal plasticity, in: H. Geelvinck, S. Reynst (eds.), Advances in Condensed Matter and Materials Research, Vol. 7, Nova Science Publishing (2010), pp. 537-591.

  6. D. M. Kochmann, K. Hackl. Time-continuous evolution of microstructures in finite plasticity, in: K. Hackl (ed.), Variational Concepts with Applications to the Mechanics of Materials, IUTAM Bookseries, Springer (2010), pp. 117-130.

  7. D. M. Kochmann, K. C. Le. An energetic approach to deformation twinning, in: K. Hackl (ed.), Variational Concepts with Applications to the Mechanics of Materials, IUTAM Bookseries, Springer (2010), pp. 141-155.

  8. K. Hackl, D. M. Kochmann. An incremental strategy for modeling laminate microstructures in finite plasticity - energy reduction, laminate orientation and cyclic behavior, in: R. de Borst, E. (eds.), Multiscale Methods in Computational Mechanics, Springer (2010), pp. 117-134.

  9. K. Hackl, D. M. Kochmann. Relaxed potentials and evolution equations for inelastic microstructures, in: B. Daya-Reddy (ed.), Theoretical, Computational and Modeling Aspects of Inelastic Media, IUTAM Bookseries, Springer (2009), pp. 27-39.


Proceedings publications

  1. C. S. Wojnar, J.-B. le Graverend, D. M. Kochmann. Broadband Electromechanical Spectroscopy: A method for measuring the dynamic electromechanical response of ferroelectrics, Micro- and Nanomechanics 5 (2017), 63-71.

  2. S. C. Bradford, D. C. Hofmann, S. N. Roberts, J. B. Steeves, C. S. Wojnar, D. M. Kochmann. Energy-efficient active reflectors with improved mechanical stability and improved thermal performance, 3rd AIAA Spacecraft Structures Conference 2016, doi:10.2514/6.2016-0702.

  3. S. C. Bradford, D. C. Hofmann, S. N. Roberts, C. S. Wojnar, D. M. Kochmann. Energy-efficient active reflectors with improved mechanical stability, 2nd AIAA Spacecraft Structures Conference 2015, doi:10.2514/6.2015-1400.

  4. J. S. Amelang, G. N. Venturini, D. M. Kochmann. Microstructure evolution during nanoindentation by the quasicontinuum method, Proc. Appl. Math. Mech. 13 (2013), 553-556.

  5. D. M. Kochmann, J. S. Amelang, M. I. Espanol, M. Ortiz. From atomistics to the continuum: a mesh-free quasicontinuum formulation based on local max-ent approximation schemes, Proc. Appl. Math. Mech. 11 (2011), 393-394.

  6. D. M. Kochmann, K. Hackl. Formation of persistent slip band-structures during cyclic loading in finite-strain crystal plasticity, Proc. Appl. Math. Mech. 10 (2010), pp. 301-302.

  7. D. M. Kochmann. Relaxation-based modeling of laminate microstructures in finite-strain crystal plasticity, Oberwolfach Report 14 (2010), pp. 17-19.

  8. D. M. Kochmann, K. Hackl. Time-continuous modeling of microstructures in single-slip finite elasto-plasticity based on energy relaxation, Proc. Appl. Math. Mech. 9 (2009), pp. 35-38.

  9. D. M. Kochmann, K. C. Le. Plastic deformation of bicrystals within continuum dislocation theory, Proc. Appl. Math. Mech. 8 (2008), pp. 1043536.

  10. D. M. Kochmann, W. J. Drugan. Stability and bound-exceeding elastic and viscoelastic response of composite materials having a negative-stiffness phase, Proc. Appl. Math. Mech. 7 (2007), pp. 4060031-32.

  11. D. M. Kochmann, W. J. Drugan, R. S. Lakes. Stability and performance of composite materials having a negative-stiffness phase, in: J. Schröder, D. Lupascu, D. Balzani (ed.), Proc. of the First Seminar on the Mechanics of Multifunctional Materials, Bad Honnef, Germany (2007), pp. 69-72.


Patents

  1. D. M. Kochmann, C. S. Wojnar, J.-B. le Graverend. Broadband Electromechanical Spectrocopy, US patent 20140298918 A1 (2016).

  2. J. A. Lewis, J. R. Raney, K. Bertoldi, C. Daraio, D. M. Kochmann, N. Nadkarni. Architecture for achieving stable wave propagation through a soft material, US patent application pending, no. 62/246433 (October 2015).


Edited journal issues

  1. Pushing the frontiers of mechanics: from the continuum to atoms and beyond, GAMM-Mitteilungen 38 (2015), 198-368, guest editors: D. M. Kochmann and C. Linder.


Theses