MOHAMMAD HADI MEHRANPOUR
 
 
About Me
As a postdoc researcher at the High Pressure and Temperature lab, my research focuses on studying the Groningen reservoir compaction as the source of subsidence and induced seismicity. In the first step of this project, the Discrete Element Method (DEM) was employed to model reservoir sandstone by developing a realistic grain-scale mechanical behavior. This technique generated a digital sandstone, which can be tuned to represent sandstone reservoirs (oil, gas and geothermal) in the Netherlands. Assigning different petrophysical properties to the digital rock and applying a wide range of boundary conditions can help us better understand and estimate the compressive behavior of sandstone and eventually propose a comprehensive constitutive model. We are also now broadening our research to investigate the effect of time-dependent compaction during cycling loading for the purpose of geothermal energy production and energy storage.

I pursued my Ph.D. degree in Geological, Geophysical and Mining Engineering from the University of Arizona as a graduate research assistant in the Rock Mass Modeling and Computational Rock Mechanics Laboratories. My a rock mechanics expert I was working on developing new rock mass strength criteria for rock mass. This research tested synthetic materials with different joint sets under polyaxial (true-triaxial) stress conditions. Then a comprehensive DEM model was developed based on these tests and conventional tests (uniaxial compression test, triaxial test, Brazilian test and direct shear test). It allowed us to simulate digital samples under a wide range of boundary conditions and joint systems to develop a data bank and eventually propose the new criteria.

I also obtained my Master’s and Bachelor’s degrees as the top student at the University of Tehran. During my Master’s program, I developed and continued my previous works on the time-dependent behavior of rocks, focusing on the creep and relaxation behavior of rock salts and published some co-authored articles in ARMA and EuroRock conferences. Moreover, I chose ‘Study on shear behavior of rock joints by direct shear test under CNL & CNS boundary conditions tests’ as my Master’s thesis topic. In this thesis, We introduced new 2D and 3D roughness parameters based on Fourier analysis. We also developed new joint shear criteria for the Constant Normal Stiffness boundary condition based on these new parameters.

Last but not least, I always cared about extracurricular activities such as organizing charities, graduation parties, field trips, speeches and student workshops as a member of different student associations. I love cooking, traveling and photography. I also have played various sports such as ping-pong, swimming, soccer and racquetball. During the pandemic, I started to run outdoor, and I love it the most. Recently I also started to learn tennis which is fantastic.

My research interests
  • Underground energy storage
  • Numerical modeling in geomechanics
  • Mechanics of granular media
  • Constitutive laws in geomechanics
  • Fault mechanics and shear failure
  • Micro CT-imaging and analysis

My publications
    Journals:
    [1] Mehranpour, M.H., Kulatilake, P.H.S.W., Xingen, M., He, M. (2018). Development of New Three-Dimensional Rock Mass Strength Criteria. Rock Mechanics and Rock Engineering. 51,3537–3561. http://dx.doi.org/10.1016/0148-9062(95)00062-3
    [2] Mehranpour, M.H., Kulatilake, P.H.S.W. (2017). Improvements for the Smooth Joint Contact Model of the Particle Flow Code and its applications. Computers and Geotechnics. 87,163-177. http://dx.doi.org/10.1016/j.compgeo.2017.02.012
    [3] Mehranpour, M.H., Kulatilake, P.H.S.W. (2016). Comparison of six major intact rock failure criteria using a particle flow approach under true-triaxial stress condition. Journal of Geomechanics and Geophysics for Geo-Energy and Geo-Resources. 2(4), 203-229. http://dx.doi.org/10.1007/s40948-016-0030-6

    Conferences:
    [1] Mehranpour, M.H., Hangx, S.J.T., Spiers, C.J. (2020). Modifications for the Smooth Joint Contact Model in the Particle Flow Code. EGU General Assembly 2020; Vienna, Austria. (Download: EGU)
    [2] Mehranpour, M.H., Saadatfar M., Van Stappen J.F., Cnudde V., Spiers, C.J., Hangx, S.J.T. (2019). Measuring intergranular force in granular media from time-lapse micro CT-imaging. 4th International Conference on Tomography of Materials & Structures; Cairns, Australia. (Download: Post Print file)
    [3] Kulatilake, P.H.S.W., Mehranpour, M.H., Xingen, M., He, M. (2018). A New Three-Dimensional Rock Mass Strength Criterion. Conference of the Arabian Journal of Geosciences; Sousse, Tunisia. (Download: Post Print file, Springer)
    [4] Mehranpour, M.H. Kulatilake, P.H.S.W. (2017). Modifications for the Smooth Joint Contact Model in the Particle Flow Code. 51th US Rock Mechanics/Geomechanics Symposium; San Francisco, USA. (Download: Post Print file, OnePetro)
    [5] Mehranpour, M.H. (2016). Introduction of new roughness parameters to quantify rock joints surface using Fourier analysis. 50th US Rock Mechanics/Geomechanics Symposium; Houston, USA. (Download: Post Print file, OnePetro)
    [6] Tavanaei, F., Mehranpour, M.H., Moosavi, M. (2014). The comparison of impression and relaxation creep tests with different diameter of indenter in salt rock. The Eurock 2014 ISRM international symposium on Rock mechanics structures on and in rock masses; Vigo, Spain. (Download: Post Print file, OnePetro, Taylor & Francis, Google books)
    [7] Moosavi, M., Rafsanjani, H.N., Mehranpour, M.H., Nazem, A., Shirazi, A.N. (2013). An investigation of surface roughness measurement in rock joints with a 3D scanning device. Rock Characterization, Modelling and Engineering Design Methods. 119-125. (Download: OnePetro, Taylor & Francis, Google books)
    [8] Rassouli, F.S., Mehranpour, M.H., Moosavi. M. (2012). Using Multistage Creep Tests to Determine the Parameters of Power Law Creep Equation. The Eurock 2012 symposium on Rock Engineering and Technology for Sustainable Underground Construction; Stockholm, Sweden. (Download: Post Print file, OnePetro)
    [9] Mehranpour, M.H., Rassouli, F.S., Moosavi, M. (2012). The impression relaxation test, a new relaxation method for determination the time dependent characteristics of rock salt. The 46th US Rock Mechanics /Geomechanics Symposium; Chicago, USA. (Download: Post Print file, OnePetro)
    [10] Rassouli, F.S., Mehranpour, M.H., Moosavi, M. (2012). Study of Punch Tip Effect on Creep of Materials in Impression Test. The 46th US Rock Mechanics/Geomechanics Symposium; Chicago, USA. (Download: Post Print file, OnePetro)
    [11] Rassouli, F.S., Mehranpour, M.H., Moosavi. M. (2011). A comparison between compression and impression creep techniques using finite element method. The 9th Euroconference on Rock Physics and Geomechanics, Trondheim, Norway. (Download: Abstract)
    [12] Rafsanjani, H.N., Mehranpour, M.H., Moosavi, M., (2011). The construction of rock joints surface scanner apparatus. 3rd International and 12th National Conference on Manufacturing Engineering; Tehran, Iran (In Farsi and English Abstract). (Download: Paper file, CIVILICA)
    [13] Rassouli, F.S., Moosavi. M., Mehranpour, M.H. (2010). The effects of different boundary conditions on creep behavior of soft rocks. The 44th U.S. Rock mechanics symposium and 5th U.S. Canada symposium, Salt Lake City, Utah, USA.