Geomechanics and Geotechnics

Dr.-Ing. Hem Bahadur Motra

Ludewig-Meyn-Straße 10, R.366
Phone: +49 431 880 1979
Telefax: +49 431 880-4376
hem.motra@ifg.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

  • Motra,H. B., Magar, J., Ismail, A., Wuttke, F., Rabbel, W., Köhn, D., Thorwart, M., Simonetta, C., Costantin, N. "Determining the influence of pressure and temperature on the elastic constants of anisotropic rock samples using ultrasonic wave techniques." Journal of Applied Geophysics, Vol. 159, 715-730.
  • Motra,H. B., Stutz, H.H.: Geomechanical Rock Properties Using Pressure and Temperature Dependence of Elastic P- and S-Wave Velocities. Geotechnical and Geological Engineering (2018, In press) doi.org/10.1007/s10706-018-0569-9.
  • Khalifeh, M., Motra, HB, Saasen, A., Hodne, H .: Potential utilization for rock-based geopolymers in oil well cementing. Proceedings of the ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2018), June 17-22, 218, Madrid, Spain. (accepted)
  • Kohn, D., Jusri, T., Rabbel, R., Motra, HB, Schreiter, L., Thorwart, M., Nil, D. De., Wuttke, F., Buske, S. and the DESCRAMBLE Working Group : Effects of seismic anisotropy on target depth determination in geothermal exploration. Near Surface Geoscience Conference & Exhibition 2018, 9-12 September 2018, Porto, Portugal. (accepted)
  • AS Sattari, HB Motra, ZH Rizvi, F. Wuttke (2018). A new lattice element method (LEM) with integrated interface elements for determining the effective thermal conductivity of rock solids under thermo-mechanical processes. International Symposium on Energy Geotechnics (SEG), Lausanne, Switzerland. (accepted)
  • Suzanne Hangx, Hem Bahadur Motra, Bart Verberne, Annisa Trahwiwit, Tessa Bosch, and Chris Spiers:  Integrating Acoustic Measurements and Microstructural Analysis to Assess The In-situ State of Stress of Sandstone Reservoirs.  EGU2018-16331.
  • Zarghaam H. Rizvi,  Mohammad Arsalan Khan, Hem Bahadur Motra, Frank Wuttke, Jamal Ahmad “Effective Physical Parameter Evaluation of Shallow Crustal Rocks by Lattice Element Method” ICAMME2018, International Conference on Materials and Manufacturing Engineering, Guntur, A.P.  India, India, 2018, Materials Today: Proceedings. (accepted)
  • Motra, H. B.  and  Zertani, S. :  Influence of loading and heating processes on elastic and geomechanical properties of eclogites and granulites. Journal of Rock Mechanics and Geotechnical Engineering 10 (2018) 127-137,  (doi: 10.1016/j.jrmge.2017.11.001.)
  • Ji, S.; Li, L.; Motra, H. B.; Wuttke, F.; Sun, S.; Michibayashi, K.; Salisbury, M. H.: Poisson’s  ratio and auxetic properties of natural rocks. Journal of Geophysical Research: Solid Earth, An AGU Journal, volume 123, Issue 2 (2018) pp. 1161-1185.
  • Wolfgang Rabbel, Tomi Jusri, Daniel Köhn, Hem Bahadur Motra, Jan Niederau, Lena Schreiter, Martin Thorwart, Frank Wuttk (the DESCRAMBLE Working Group),  Seismic Velocity Uncertainties and their Effect on Geothermal Predictions: A Case Study,  Energy Procedia, Volume 125, September 2017, Pages 283-290. ( https://doi.org/10.1016/j.egypro.2017.08.178).
  • 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).
  • Zarghaam H. Rizvi, Amir S. Sattari, Hem B. Motra, Frank Wuttke, Effective parameter evaluation in heterogeneous cemented geomaterials subjected to high temperature, pressure and constrained deformations, Second International Symposium on Coupled Phenomena in Environmental Geotechnics, 6-7 September 2017, University of Leeds, UK.
  • 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.

Teaching

Winter

  • Exercises to Geomechanics and Geotechnics I (B.Sc.)
  • Theoretische Geomechanik (B.Sc.)
  • Mechanik für Geowissenschaftler (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.)