Wiącek Joanna

Wiącek Joanna

Print Friendly, PDF & Email
DSc Wiącek Joanna
Room: B127
show e-mail address
Phone: (81) 744 50 61 w. 181

Department and laboratory

Department: Department of Physical Properties of Plant Materials

Laboratory: Laboratory of Mechanics of Granular Materials


Research interests:

  • Mechanical properties of granular plant materials
  • Discrete element modelling of mechanical processes in granular materials

Other information

Education (dates, degrees, universities):

  • 2004    MSc in Physics
    Faculty of Mathematics, Physics and Chemistry, Maria Curie-Skłodowska University in Lublin, Poland
    MSc thesis: “Tempearture dependence of nuclear shell energies”
  • 2008    PhD in Agricultural Sciences (Agronomy-Agrophysics)
    Institute of Agrophysics PAS, Lublin, Poland
    Dissertation: “Modeling of quasi-static effects in grain bedding using discrete element


  • The Polish Society of Agrophysics


  1. 2022, DEM modelling of the influence of initial stress state on the discharge rate of spherical particles from a model silo, Powder Technology, 403,117402, str. 1-9, DOI: 10.1016/j.powtec.2022.117402
  2. 2022, An effect of content and particle stiffness on the mechanics of particle mixtures: experimental and numerical study, 24. Międzynarodowa Konferencja Metod Komputerowych w Mechanice (CMM) oraz 42. Konferencja Mechaniki Ciał Stałych (SolMech) (CMM-SolMech 2022); Swinoujście, 5-8.09.2022,
  3. 2022, Nowe metody badań proszków spożywczych oraz biomasy, XX Konferencja Naukowo-Techniczna Budowa i Eksploatacja Maszyn Przemysłu Spożywczego „BEMS 2022”; Pułtusk, 20-23.09.2022,
  4. 2022, Converging orifice used to control the discharge rate of spherical particles from a flat floor silo, Scientific Reports, 13:669; DOI: 10.1038/s41598-023-27431-8
  5. 2021, Mechanical and Combustion Properties of Agglomerates of Wood of Popular Eastern European Species, Materials, 14(11), 2728; DOI: 10.3390/ma14112728
  6. 2021, Breakage Strength of Wood Sawdust Pellets: Measurements and Modelling, Materials, 14(12), 3273; DOI: 10.3390/ma14123273
  7. 2021, Experimental analysis of wheat-wall friction and grain flow in a steel silo with corrugated walls, Biosystems Engineering, 209: 216-231; DOI: 10.1016/j.biosystemseng.2021.07.003
  8. 2021, Discharge Flow of Spherical Particles from a Cylindrical Bin: Experiment and DEM Simulations, Processes, 9,1860, str.1-20, DOI: 10.3390/pr9111860
  9. 2021, Modelling and simulation of fruit drop tests by discrete element method, Biosystems Engineering, 212, str. 228-240, DOI: 10.1016/j.biosystemseng.2021.08.007
  10. 2021, Experiments and DEM simulations of spherical particles discharge from a cylindrical bin, 13th International Conference on Agrophysics: Agriculture in changing climate 15-16 November 2021, Lublin, Poland, str. 166
  11. 2020, Discrete Element Method Modelling of the Diametral Compression of Starch Agglomerates, Materials, 13(4). 392, str1-22, DOI: 10.3390/ma13040932
  12. 2020, Structural and Micromechanical Properties of Ternary Granular Packings: Effect of Particle Size Ratio and Number Fraction of Particle Size Classes, Materials, 13(2):339, str. 1-19, DOI: 10.3390/ma13020339
  13. 2020, Friction and Shear Properties of Pine Biomass and Pellets, Materials, 13(16), 3567, str. 1-15, DOI: 10.3390/ma13163567
  14. 2020, Calibration of discrete-element-method model parameters of bulk wheat for storage, Biosystems Engineering, 200: 298-314; DOI: 10.1016/j.biosystemseng.2020.10.010
  15. 2019, Mechanical characteristics of pine biomass of different sizes and shapes, European Journal of Wood and Wood Products, 77((4), str. 593-608, DOI: 0.1007/s00107-019-01415-w
  16. 2019, Tensile strength of pressure-agglomerated potato starch determined via diametral compression test: Discrete element method simulations and experiments, Biosystems Engineering, 183, str. 95-109, DOI: 10.1016/j.biosystemseng.2019.04.019
  17. 2019, DEM analysis of the flow and friction of spherical particles in steel silos with corrugated walls, Powder Technology, 355, str. 425-437, DOI: 10.1016/j.powtec.2019.07.072
  18. 2019, Two-dimensional particle shapes modelling for DEM simulations in engineering: a review, Granular Matter, str. 1-19, DOI: 10.1007/s10035-019-0935-1
  19. 2019, A DEM study of relationschip between mechanical strength and geometrical parameters of agglomerates composed of plant materials, 9th International Granulation Workshop 2019, Lousanne, Switzerland,
  20. 2019, DEM modelling of diametral compression test of starch agglomerates, 4th Polish Congress of Mechanics, PCM-CMM, Kraków, Poland, 8-12.06.2019,
  21. 2019, Formation and diametral compression of starch tablets: experiment and DEM simulations, International Congress on Particle Technology PARTEC 2019, 9-11.04.2019 r. Nuremberg, Deutchland,
  22. 2019, Friction of wheat on corrugated steel. Experiments and Discrete Element Method modelling. DEM 8, 8th International Conference on Discrete Element Methods, The Netherlands, 21-26.06.2019, str. 196
  23. 2019, Compressibility and pressure distribution in a deposit of spherical particles under cyclic uniaxial confined compression, International Congress on Particle Technology PARTEC 2019, 9-11.04.2019 r. Nuremberg, Deutchland,
  24. 2019, A DEM study of relationship between mechanical strength and friction and adhesive parameters of agglomerates composed of plant materials, 9th International Granulation Workshop, Lozanna, Switzerland, 26-28.06.2019 ,
  25. 2018, Characterization of shear behaviour in consolidated granular biomass, Powder Technology, 327: 120-127
  26. 2018, Numerical analysis of compression mechanics of highly polydisperse granular mixtures with different PSD-s, Granular Matter, 20:17; DOI: 10.1007/s10035-018-0788-z
  27. 2018, Effect of number of granulometric fractions on structure and micromechanics of compressed granular packings, Particuology, 39: 88-95
  28. 2018, Effect of aspect ratio on the mechanical behavior of packings of spheroids, Physica A-Statistical Mechanics and its Applications, 501: 1-11
  29. 2018, Effect of the particle size ratio on the structural properties of granular mixtures with discrete particle size distribution, Granular Matter, 20:31, DOI: 0.1007/s10035-018-0800-7
  30. 2018, Selection of material for X-ray tomography analysis and DEM simulations: comparison between granular materials of biological and non-biological origins, Granular Matter, 20(38): 1-14
  31. 2018, Discrete Element Method modelling of diametral compression of starch tablets, 12th International Conference on Agrophysics: Soil, Plant & Climate, Lublin 17-19.09.2018 r., str. 61
  32. 2018, Outflow of mixtures of spheres and cylinders through horizontal orifices. Experimental and DEM simulations, 12th International Conference on Agrophysics: Soil, Plant & Climate, Lublin 17-19.09.2018 r., str. 160
  33. 2018, Numerical analysis of compression mechanics of granular packings with various number of particle size fractions, 2-nd Workshop on Porous Media, Olsztyn, 28-30.06.2018 r., str. 54
  34. 2018, Effect of trimodality on structural and mechanical properties of granular packings with different particle size ratios and particle size fractions, 41st Solid Mechanics Conference (SolMech) Warszawa, 27-31.08.2018 r., str. 186-187
  35. 2017, Mechanical and combustion properties of sawdust-straw pellets blended in different proportions, Fuel Processing Technology, 156: 366-375
  36. 2017, Effective elastic properties and pressure distribution in bidisperse granular packings: DEM simulations and experiment, Archives of Civil and Mechanical Engineering, 2(7): 271-280
  37. 2017, Effect of particle size ratio and contribution of particle size fractions on micromechanics of uniaxially compressed binary sphere mixtures, Granular Matter, Vol. 19 (34), DOI: 10.1007/s10035-017-0719-4
  38. 2017, Breaking tester for examining strength of consolidated starch, International Agrophysics, Vol. 31(2): 251-258
  39. 2017, Discharge of spheres, cylinders and their mixtures from cylindrical bin. Experiments and DEM simulations, 10th World Congress of Chemical Engineering, Barcelona, Spain, 1-5.10.2017,
  40. 2017, Discrete Element Method for engineering application: modelling of granular materials transported on conveyor belt, 2nd International Conference of Computational Methods in Engineering Science CMES, Lublin, Poland, 23-25.11.2017,
  41. 2016, Generacja złóż wirtualnych Metodą Elementów Dyskretnych, Granularne Ośrodki Porowate,
  42. 2016, Metoda Elementów Dyskretnych MED, 1st Workshop on Porous Media. Olsztyn, 1-3.07.2016 r. ,
  43. 2016, Representative elementary volume analysis of polydisperse granular packings using discrete element method, Particuology, 27: 88-94
  44. 2016, Geometrical parameters of binary granular mixtures with size ratio and volume fraction: experiments and DEM simulations, Granular Matter, 18(42): 1-10
  45. 2016, Pressure distribution in an assembly of wooden cylinders with various aspect ratios under uniaxial confined compression, Granular Matter, 18(2): 1-8
  46. 2015, Uniaxial compression testing and DEM simulations of binary mixtures of spherical particles., 2015
  47. 2015, Geometrical and mechanical Representative Elementary Volumes for polydisperse granular materials., 2015
  48. 2014, Influence of shape of particle size distribution on mechanics of uniaxially compressed granular packings., 2014
  49. 2014, Effect of particle size distribution on micro- and macromechanical response of granular packings under compression., International Journal of Solids and Structures, 2014, 514189-4195
  50. 2014, Effect of particle polydispersity on micromechanical properties and energy dissipation in granular mixtures., Particuology, 2014, 1691-99
  51. 2014, Microstructure and micromechanics of polydisperse granular materials: Effect of the shape of particle size distribution., Powder Technology, 2014, 268237-243
  52. 2014, Influence of the method of representing shape of oblong particle on results of DEM simulations of uniaxial compression of granular assembly., 2014, No.-162
  53. 2013, Oddziaływania w materiałach sypkich, 2013
  54. 2013, Effect of particie size distribution on the energy dissipation and mechanical response of packings of spheres under compressive loading, 2013
  55. 2013, Właściwości mechaniczne biomasy ziarnistej i włóknistej wykorzystywanej na cele energetyczne i do zakiszania, 2013
  56. 2013, DEM simulations of the frictional and frictionless polydisperse packings of the spheres under uniaxial compression, 2013, 715-725
  57. 2013, Effect of particle size distribution on the energy dissipation and mechanical response of packings of spheres under compressive loading, 2013, 118-118
  58. 2013, Effect of cohesion on the mechanical properties of polydisperse granular beddings, 2013, 69-69
  59. 2013, Experiment and DEM modelling of powder slip-stick effect, 2013, 63-63
  60. 2012, Energia fal, 2012
  61. 2012, Magia materiałów sypkich, 2012
  62. 2012, Experimental and numerical studies on uniaxial compression behavior of slightly oblong particles at crossover from Quasi-2D to 3D, 2012
  63. 2012, Modelowanie metodą elementów dyskretnych procesów mechanicznych w ośrodkach rozdrobnionych, 2012, 88-89
  64. 2012, Experimental and numerical determination of representative elementary volume for granular plant materials., Granular Matter, 2012, 14449-456
  65. 2012, Influence of grain shape and intergranular friction on material behavior in uniaxial compression: Experimental and DEM modeling., Powder Technology, 2012, 217435-442
  66. 2011, Mechanical properties of granular agro-materials. Continuum and discrete approach., Acta Agrophysica Rozprawy i Monografie EN, 2011, 190(1): 1-152
  67. 2011, Wpływ szerokości próbki i kształtu cząstek na charakterystyki jednoosiowego ściskania złoża materiału sypkiego., Acta Agrophysica, 2011, 18(2): 399-408
  68. 2011, Variability of intergranular friction and its role in DEM simulation of direct shear of an assemmbly of rapeseeds., International Agrophysics, 2011, 25(4): 361-368
  69. 2011, Moisture-dependent physical properties of rapeseed – experimental and DEM modeling, International Agrophysics, 2011, 25(1): 59-65
  70. 2010, Simulation of the packing structure, load distribution and flow pattern in a 2-dimensional model silo using discrete element method, 2010
  71. 2009, Discontinuity, non-homogeneity and anisotropy in granular media., Annual Report Polish Academy of Sciences, 2009, 67-68
  72. 2009, Metoda wyznaczania współczynnika tarcia pomiędzy dwoma metalowymi i organicznymi obiektami., Acta Agrophysica, 2009, 167, Vol. 13(2), 407-418
  73. 2009, Wpływ właściwości fizycznych granul na sypkość proszków spożywczych., 2009
  74. 2009, Modelowanie elementarnych oddziaływań w obszarze kontaktu ziaren., 2009
  75. 2008, Wpływ właściwości fizycznych granul na sypkość proszków spożywczych., 2008
  76. 2008, Modelowanie elementarnych oddziaływań w obszarze kontaktu ziaren., 2008
  77. 2008, Influence of particle size variability on mechanical and geometrical properties of granular system., 2008