Geomechanics and Geotechnics

Dr.-Ing. Hem Bahadur Motra

Ludewig-Meyn-Straße 10, R.366
Phone: +49 431 880 1979
Telefax: +49 431 880-4376
motra@gpi.uni-kiel.de

Research interests

  • Reliable engineering computing
  • Structural Reliability, Risk and Hazard Analysis
  • Uncertainty modeling in Structural and Geotechical Engineering
  • Quality Evaluation of Numerical, Mathematical and Experimental models/methods
  •  Rock Physics
  • Reservoir characterization
  • Elastic and seismic anisotropy of rock under high pressure and high temperature
  • Geostatistics

Publications

  • A. S. Sattari, Z. H. Rizvi, H. B. Motra, F. Wuttke (2017). Meso-scale modeling of heat transport in a heterogeneous cemented geomaterial by lattice element method. Granular Matter. 19:66. (DOI 10.1007/s10035-017-0751-4).
  • Rabbel, W., Köhn, D., Motra, H. B., Niederau, J., Thorwart, M., Wuttke, F., DESCRAMBLE Working Group (2017), Geothermal prospecting and the role of seismic velocity uncertainties. 77th annual meeting of the German Geophysical Society (DGG), At Potsdam, Germany.
  • Zertani, S., John, T., Tilmann, F., Motra, H. B., Labrousse, L., Andersen, T. B. (2017), Petrophysical properties of eclogite facies shear zones and their relationship to receiver function signals.  European Geosciences Union,  General Assembly 2017, Vol. 19, EGU2017-18686 (http://meetingorganizer.copernicus.org/EGU2017/EGU2017-18686.pdf).
  • Rabbel, W., Köhn, D., Motra, H. B., Niederau, J., Thorwart, M., Wuttke, F. (2017), Seismic velocity uncertainties and their effect on geothermal predictions: A case study".  European Geosciences Union,  General Assembly 2017, Vol. 19, EGU2017-9698 (http://meetingorganizer.copernicus.org/EGU2017/EGU2017-9698.pdf).
  • F. Wuttke, A.S. Sattari, Z. H. Rizvi and  H.B. Motra, 2017, Advanced Meso-Scale Modelling to Study the Effective Thermo-Mechanical Parameter in Solid Geomaterial, Advances in Laboratory Testing and Modelling of Soils and Shales (ATMSS), Springer Series in Geomechanics and Geoengineering,(DOI:10.1007/978-3-319-52773-4_9).
  • H.B. Motra and F. Wuttke, 2016, 3D seismic wave velocities (anisotropy) of rock samples under HP/HT conditions.  Interpore: 1st German National Chapter Meeting 5-6 December 2016, Leipzig, Germany.
  • H.B. Motra and F. Wuttke, 2016,  Temperature dependence of elastic P- and S-wave properties of rocks: Applications to geothermal reservoir evaluation.  Energy Geotechnics - Proceedings of the 1st International Conference on Energy Geotechnics (ICEGT 2016, Kiel, Germany, 29-31 August 2016), (ISBN 9781138032996, 311 - 316).
  • Kurzawski, R.M., Behrmann, J.H., Stipp, M., Motra, H.B., "Crystals, grains or cracks? Causes for seismic anisotropy in rocks from the Eclogite Zone", Tauern Window, Austria. In: GeoTirol 25-28 September 2016, Innsbruck, Austria (accepted)
  • Z.H. Rizvi, H.B. Motra, K.  Sembdner, A.S. Sattari, F. Wuttke,“ Time lapsed monitoring and numerical simulation of thermo-mechanical properties of fractured porous rock“, Interpore 8th International Conference on Porous Media & Annual Meeting, May 2016, Ohio, Cincinnati, USA
  • Scheiber, F., Motra, H. B., Legatiuk, D., Werner, F. :“Uncertainty-based Evaluation and Coupling of Mathematical and Physical Models”. In: Probabilistic Engineering Mechanics, 45(2016) pp 52-60.
  • Motra, H. B., Hildebrand, J., Wuttke, F.. :“Monte Carlo method for the evaluation of measurement uncertainty: application to determine material properties”. In: Probabilistic Engineering Mechanics , 2016.  (accepted)
  • H.B. Motra, H. Stutz and F. Wuttke "Quality assessment of soil bearing capacity factor models of shallow foundations", Soils and Foundations 56(2), 265-276, 2016.
  • Keitel, H., Jung, B., Motra, H. B., Stutz, H.: “Quality assessment of coupled partial models considering soil–structure coupling”. In: Engineering Structures 02/2014; 59(February 2014):565-573.
  • Keitel, H., Stutz, H., Jung, B., Motra, H. B.: "Prognosequalität eines Gesamtmodells – Einfluss verschiedener Kopplungsszenarien auf die Interaktion Struktur". In: Boden Bautechnik 04/2013; 90(Sonderdruck "Modellqualitäten"):19-25.
  • Motra, H. B., Dimmig-Osburg, A., Hildebrand, J., Lahmer, T.: "Reliability of measurement results for materials testing". In: 12th International Probabilistic Workshop, IPW2014, Weimar/Germany, 4th-5th Novermber 2014, ISBN: 978-3-95773-183-8, 228-237.
  • Motra, H. B., Dimmig-Osburg, A., Hildebrand, J.: "Quality assessment of strain measurement in concrete structures". In: Bautechnik-Special Edition "Model quality", 90(2013)69-75.
  • Motra, H. B., Dimmig-Osburg, A., Hildebrand, J.: "Evaluation of experimental measurement uncertainty in engeneering properties of PCC samples". In: Journal of Civil Engeneering Research, Vol. 3, No. 3, 2013, 104-113.
  • Motra, H. B., Dimmig-Osburg, A., Hildebrand, J.: "Influence of measurement uncertainties on results of creep prediction of concrete under cyclic loading". In: Proceedings of the 8th International Conference on Fracture Mechanics of Concrete and Concrete Sructures, March 10-14, 2013/Toledo-Spain, ISBN 978-84-941004-1-3, 805-814.
  • Motra, H. B., Dimmig-Osburg, A., Hildebrand, J.: "Probabilistic assessment of concrete creep models under repeated loading with correlated and uncorrelated input variables". In: Proceedings of the 10th International Probabilistic Workshop, Stuttgard, 15-16. November 2012, ISBN: 978-3-921837-67-2, 285-301.
  • Motra, H. B., Dimmig-Osburg, A., Hildebrand, J.: "Quality assessment of models with an application to cyclic creep prediction of concrete". In: International Journal of Reliability and Safety, Vol. 8, No. 2, (2014) 262-283.
  •  Motra, H. B., Dimmig-Osburg, A., Hildebrand, J.: "Uncertainty quantification on creep deflection of concrete beam subjected to cyclic loading". In: 11th International Conference on Structural Safety & Reliabiliy, Columbia University, New York, NY, 16-20 June 2013, USA.
  • Motra, H. B., Hildebrand, J., Dimmig-Osburg, A.: "Assessment of strain measurement techniques to characterize mechanical properties of structural steel". In: Engeneering Science and Technology, an International Journal, Vol. 17 (2014) 260-269.
  • Motra, H. B., Hildebrand, J., Dimmig-Osburg, A.: "Influence of specimen dimensions and orientations on the tensile properties of structural steel". In: Material Testing, Vol.56, No.11-12, (2014) 929-936.
  • Scheiber, F., Motra, H. B., Legatiuk, D., Werner, F.: "Model coupling in structural engeneering application". In: 12th International Probabilistic Workshop, IPW2014, Weimar/Germany, 4th-5th November 2014, ISBN: 978-3-95773-183-8, 283-292.
  • Scheiber, F., Motra, H. B.: "Tragwerksmonitoring und numerische Simulation". In: Bautechnik-Special Edition "Model quality" 90(2013)63-68.
  • Scheiber, F., Motra, H. B.: "Ansatz zur hybriden Modellierung im Konstruktiven Ingenieurbau - Bewertete Kopplung von mathematischen und physikalischen Modellen". In: 7th symposium "Experimentelle Untersuchungen von Baukonsturktionen", Technische Universität Dresden Germany, 5th September 2013, ISSN 1613-6934, 21-33.

 

Under review

  • Motra, H. B., Hildebrand, J., Dimmig-Osburg, A., Stutz,  H.:“A probabilistic method for quality evaluation of experiments in Civil Engineering”. In: Measurement.

Teaching

Winter

  • Exercises to Geomechanics and Geotechnics I (B.Sc.)
  • Technical Mechanics / Exercises (B.Sc.)
  • Advanced Lectures II - Numerical Methods (M.Sc.)
  • Lab Exercises Geomechanics & Geotechnics (B. Sc.)

Summer

  • Geomechanics and Geotechnics II (B.Sc.)
  • Foundation Engineering II and Geotechnologies (M.Sc.)
  • Advanced Lectures I - Constitutive Models (M.Sc.)