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AWT IMAGE

Addresses: School of Mechanical Engineering, Iran University of Science & Technology, Narmak, Tehran, Iran

Zip Code: 16846-13114

Mail Box: 16765-163

Tel : +98(21) 77491228-29

Fax : +98(21) 77240488

Email: meresearch@iust.ac.ir

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:: conference ::
  • 64. Aliha M.R.M. and Ayatollahi M.R. (2007) "Combined mode fracture toughness assessment for a high strength cement mortar" Proceedings of DAMAS conference, Turin, Italy.
  • 63. Ayatollahi M.R., Azad H. and Hashemi R. (2007) "Analysis of cracked pipes reinforced by composite patching" First Iranian Pipe and Pipeline Conference, Tehran, Iran.
  • 62. Akbardoost J., Ayatollahi M.R. and Aliha M.R.M. (2007) "Strength evaluation of oil and gas pipes under external explosive loading" First Iranian Pipe and Pipeline Conference, Tehran, Iran.
  • 61. Aliha M.R.M. and Ayatollahi M.R. (2007) "A fracture mechanics approach for analyzing spiral weld pipes containing crack" First Iranian Pipe and Pipeline Conference, Tehran, Iran.
  • 60. Ayatollahi M.R. and Khorramishad H. (2007) "Stress intensity factors for cracked buried pipes - 3D finite element analysis" Proceedings of 15th Annual International Conference on Mechanical Engineering, Tehran, Iran.
  • 59. Ayatollahi M.R. Aliha M.R.M. and Khademi S. (2007) "On determination of tensile strength of rock materials using disk-type specimens" Proceedings of 15th Annual International Conference on Mechanical Engineering, Tehran, Iran.
  • 58. Ayatollahi M.R. and Khorramishad H. (2007) "Two-dimensional analysis of cracks in buried oil and gas pipes" Proceedings of Third National Conference on Civil Engineering, Tabriz, Iran.
  • 57. Ayatollahi M.R. and Saravani M. (2007) "Finite element analysis of cracks existing in root of a V-notch" Proceedings of Third National Conference on Civil Engineering, Tabriz, Iran.
  • 56. Aliha M.R.M., Ayatollahi M.R. and Ashtari R. (2007) "Experimental investigation of brittle fracture in a cracked marble specimen" Proceedings of Third National Conference on Civil Engineering, Tabriz, Iran.
  • 55. Ayatollahi M.R. and Tiznobeik H. (2007) "A review of numerical techniques used for photoelastic analysis of cracks", Proceeding of 6th conference of Iranian Aerospace Society, Tehran, Iran.
  • 54. Ayatollahi M.R. and Saravani M. (2007) "Experimental determination of stress intensity factors in cracked V-notches using photoelasticity", Proceeding of 6th conference of Iranian Aerospace Society, Tehran, Iran.
  • 53. Ayatollahi M.R., Rokhy H. and Hashemi R. (2007) "Free vibration analysis of a cracked Timoshenko beam" Proceeding of 6th conference of Iranian Aerospace Society, Tehran, Iran.
  • 52. Ayatollahi M.R. A., Shakeri and M. Zakeri (2006) "A fracture criterion for strength analysis of cracked drills under drilling torsional moments" Proceedings of the First Iranian Petroleum Engineering Congress, Tehran, Iran.
  • 51. Ayatollahi M.R., Aliha M.R.M. and Takaffoli, M. (2006) "Application of fracture mechanics for determination of in-situ stresses during hydraulic fracturing process" Proceedings of the First Iranian Petroleum Engineering Congress, Tehran, Iran.
  • 50. Aliha M.R.M. and Ayatollahi M.R. (2006) "A theoretical investigation of hydraulic fracturing in horizontal wells using fracture mechanics approach" Proceedings of the First Iranian Petroleum Engineering Congress, Tehran Iran.
  • 49. Ayatollahi, M.R. and Mostafavi, M. (2006) “Mode I preloading – mode II fracture in warm prestressing” Proceedings of the 16th European Conference on Fracture- ECF16, Alexandroupolis, Greece.
  • 48. Ayatollahi, M.R. and Aliha, M.R.M. (2006) “Predictions of mixed mode fracture toughness for a soft rock” Proceedings of the 16th European Conference on Fracture- ECF16, Alexandroupolis, Greece.
  • 47. Ayatollahi, M.R. and Mostafavi, M. (2006) ”Warm pre-stressing effects on mechanism of fracture in a central angled crack specimen” Proceedings of the 10th International ISME Conference, Isfahan, Iran.
  • 46. Ayatollahi, M.R., Aliha, M.R.M and Poursaeedi, E (2006) ”Failure evaluation of a fractured turbine shaft in a gas power plant using finite element analysis” Proceedings of the 10th International ISME Conference, Isfahan, Iran.
  • 45. Ayatollahi, M.R. and Hashemi, R. (2006) “Mixed mode brittle fracture in cracked components reinforced by composite patching” Proceedings of 7th ICCE International Conference, Tehran, Iran. (In Persian)
  • 44. Ayatollahi, M.R. and Hashemi, R. (2006) “Optimized fiber angle for composite reinforcement of a crack on a rivet hole” Proceedings of 7th ICCE International Conference, Tehran, Iran. (In Persian)
  • 43. Ayatollahi, M.R. and Takaffoli, M. (2006) “Finite element modeling for hydraulic fracturing in oil and gas wells” Proceedings of 7th ICCE International Conference, Tehran, Iran. (In Persian)
  • 42. Ayatollahi, M.R. and Hassani, M.M. (2005) “Fracture initiation angle for a cracked plate under pure shear” Proceedings of 2nd National Conference on Thin-Walled Structures, Kerman, Iran, PP. 301-310. (in Persian)
  • 41. Ayatollahi, M.R. and Hashemi, R. “Effects of composite reinforcement on a thin-walled plate containing a central crack” Proceedings of 2nd National Conference on Thin-Walled Structures, Kerman, Iran, PP. 293-300. (in Persian)
  • 40. Ayatollahi, M.R. and Aliniaziazi, A. (2005) “Finite element analysis of a warm pre-stressed center crack plate” Proceedings of 2nd National Conference on Civil Engineering, Tehran, Iran. (in Persian)
  • 39. Ayatollahi, M.R. and Raghebi, M. (2005) “In-plane vibrations of curved Timoshenko beams using finite element method” Proceedings of 2nd National Conference on Civil Engineering, Tehran, Iran. (in Persian)
  • 38. Ayatollahi, M.R. and Hassani, M.M. (2005) “Path of crack growth in a crack specimen subjected to pure mode II” Proceedings of 2nd National Conference on Civil Engineering, Tehran, Iran. (in Persian)
  • 37. Ayatollahi, M.R. and Ashtari, R. (2005) ”Statistical analysis of fracture toughness results for two concrete materials using Weibull’s model” Proceedings of the 9th International ISME Conference, Isfahan, Iran. (in Persian)
  • 36. Ayatollahi, M.R. Zakeri, M. (2005) ”Evaluation of iso-chromatic fringes around mode II cracks using theory of photoelasticity” Proceedings of the 9th International ISME Conference, Isfahan, Iran. (in Persian)
  • 35. Ayatollahi, M.R. Mostafavi, M. (2005) ”Effects of preloading level on a warm pre-stressed crack specimen” Proceedings of the 9th International ISME Conference, Isfahan, Iran
  • 34. Ayatollahi, M.R., Aliniaziazi, A. and Mostafavi, M. (2005) “Warm pre-stress effects on cleavage fracture in center crack specimen” Proceedings of the 11th International Conference on Fracture- ICF11, Turin, Italy.
  • 33. Ayatollahi, M.R. Zakeri, M. and Hassani, M.M. (2005) “On the presence of t-stress in mode ii crack problems” Proceedings of the 11th International Conference on Fracture- ICF11, Turin, Italy.
  • 32. Ayatollahi, M.R., and Aliha, M.R.M. (2005) “Applications of fracture mechanics in rock cutting processes in drilling operation” Iranian Drilling Conference, Arak, Iran. (in Persian)
  • 31. Ayatollahi, M.R., Ashtari, R. and Mohammadabadi, M. (2005) “Finite element analysis of CNSR specimen for fracture toughness testing in rock materials” The Iranian Mining Engineering Conference, Tehran, Iran, Vol. 3, PP. 1439-1450. (in Persian)
  • 30. Ayatollahi, M.R. and Bagherifard, S. (2005) “A review of mixed mode test specimens for rock and ceramic materials” The Iranian Mining Engineering Conference, Tehran, Iran, Vol. 3, PP. 1451-1464. (in Persian)
  • 29. Ayatollahi, M.R., and Aliha, M.R.M. (2004) “Fracture Initiation angle in the centrally cracked circular disk specimen” Proceedings of the 15th European Conference on Fracture- ECF15, Stockholm, Sweden.
  • 28. Ayatollahi, M.R. (2004) “J-T Characterization of elastic-plastic stress fields in a mode II crack specimen” Proceedings of the 15th European Conference on Fracture- ECF15, Stockholm, Sweden.
  • 27. Ayatollahi, M.R. and Zakeri, M. (2004) “In-plane modes of deformation in crack problems” Proceedings of the 8th International ISME Conference, Tehran, Iran.
  • 26. Ayatollahi, M.R. and Khojeh, A. (2004) “Effect of traverse load on fractyure behavior of a cracked specimen” Proceedings of the 8th International ISME Conference, Tehran, Iran.
  • 25. Ayatollahi, M. R. and Nikoobin, A. (2004) “An experimental method for determination of T-stress” Proceedings of the 5th Iranian Aerospace Society Conference, PP. 379-386.
  • 24. Ayatollahi, M.R. and Shokrani A.R. (2003) “Shear geometry factor for a four-point-bend crack specimen” Proceedings of the 7th International ISME Conference, Mashhad, Iran, Vol. 3, PP 1159-1167.
  • 23. Ayatollahi, M.R. and Nasr-Esfahani, M. (2003) “A modification on the minimum distortional strain energy density criterion” Proceedings of the 7th International ISME Conference, Mashhad, Iran, Vol. 3, PP 1122-1128.
  • 22. Ayatollahi, M.R., Aliniaziazi, A. and Aliha, M.R.M. (2003) “Stress intensity factors for a weld toe crack in a tubular joint” Proceedings of 6th International Conference on Civil Engineering (ICCE 2003), Isfahan, Iran, Vol. 6, PP 361- 366.
  • 21. Ayatollahi, M.R. and Abbasi, H. (2003) “Effects of higher order strains on brittle fracture based on LEFM” Proceedings of the 4th Iranian Aerospace Society Conference, Tehran, Iran, Vol. 1, PP 87-94.
  • 20. Ayatollahi, M.R. and Ashtari, R. (2003) “Shear deformation effects in blade vibrations” Proceedings of the 4th Iranian Aerospace Society Conference, Tehran, Iran, Vol. 1, 495-504.
  • 19. Ayatollahi, M.R. and Asadkarami, A., (2002) “Finite element study of a double edge crack specimen” Proceedings of 14th European Conference on Fracture, Krakow, Poland, Vol. 1, PP 153-160.
  • 18. Ayatollahi, M.R., Pavier, M.J. and Smith, D.J. (2002) “A new specimen for mode II fracture tests” Proceedings of 14th European Conference on Fracture, Krakow, Poland, Vol. 1, PP 161-168.
  • 17. Ayatollahi, M.R. (2002) “Evaluation of brittle fracture in spiral weld pipes” Proceedings of International Conference on Helical Seam Submerged-Arc Welded Pipe in Oil and Gas Industry, Tehran, Iran.
  • 16. Ayatollahi, M.R. and Zanbilbaf, A. (2002) “Fracture trajectory in shear loading” Proceedings of the 6th International ISME Conference, Tehran, Iran, Vol. 4, PP 2111-2117.
  • 15. Ayatollahi, M.R. and Ghandchi-Tehrani, M. (2002) “Dynamic analysis of a straight blade with asymmetrical cross-section” Proceedings of the 6th International ISME Conference, Tehran, Iran, Vol. 5, PP 64-71.
  • 14. Ayatollahi, M.R. and Smith D.J. (2001) “Lateral load effects in brittle fracture of internal cracks” Proceedings of the 6th International Conference on Biaxial and Multi-axial Fatigue and Fracture, Lisbon, Vol. 2, PP 983-990.
  • 13. Ayatollahi, M.R., Mohammad-Aliha, M.R., Aliniaziazi, A. (2001) “ The near-tip parameters for a few cracked specimens” Proceedings of the 5th International ISME Conference, Rasht, Iran, Vol. 1, PP 441-448.
  • 12. Ayatollahi, M.R. and Safari, G.H. (2001) “On the determination of the stress intensity factors using the method of photoelasticity” Proceedings of the 5th International ISME Conference, Rasht, Iran, Vol. 1, PP 239-245.
  • 11. Ayatollahi, M.R. and Abbasi, H. (2000) “A modified criterion for mixed mode fracture” Proceedings of the 1st International Aerospace Conference, Tehran, Iran, Vol. 3, PP. 975-983.
  • 10. Ayatollahi, M.R. and Abbasi, H. (2000) “Crack growth prediction based on the maximum hoop strain criterion” Proceedings of the 8th International NMCM Conference, Slovakia, paper No 94.
  • 9. Ayatollahi, M.R. (2000) “Crack tip parameters for a tension-shear specimen” Proceedings of the 4th International ISME Conference, Tehran, Iran, Vol. 3, PP. 61-66.
  • 8. Smith D.J., Swankie, T.D., Ayatollahi, M.R. and Pavier, M.J. (1998) "Brittle and ductile failure under mixed mode loading", Proceedings of 12th European Conference on Fracture (ECF12), Sheffield, UK, Vol. 2, PP 661-666.
  • 7. Ayatollahi, M.R., Smith D.J. and Pavier, M.J. (1997) "Displacement based approach to obtain T-stress using finite element analysis", Proceedings of ASME-Pressure Vessel and Piping Conference, Orlando, FL, Vol. 346, PP 149-154.
  • 6. Ayatollahi, M.R. and Fuladi, M., (1993) "Nonsymmetrical Vibration of Thin Cylindrical Shells - An Energy Approach", Proceedings of Iranian Society of Mechanical Engineers Annual Conference, Tehran, Iran.
  • 5. Ayatollahi, M.R. and Shahani, A.R., (1993) "Thermally Induced Vibrations of Circular Plates", Proceedings of ETCE`93, ASME, Houston, TX, PD-Vol. 52, PP. 45-49.
  • 4. Ayatollahi, M.R. and Aghili, J., (1992) " Galerkin Approach in Finite Element Solution of Asymmetrically Loaded Circular Plates ", Proceedings of the Third National Congress on Mechanics, Vol. 2, PP. 699-706, Athens, Greece.
  • 3. Ayatollahi, M.R. (1991) " Static, Free and Forced Vibration Analysis of Shell of Revolution on Elastic Foundation ", SMiRT 11 Transaction Vol. J, PP. 165- 70.
  • 2. Eslami, M.R. and Ayatollahi, M.R., (1991) " Dynamic Analysis of Shell of Revolution by Modal Analysis", Proceedings of ASME-Pressure Vessel and Piping Conference, 23-27 June, San Diego, CA., Vol. 218, PP. 151-156.
  • 1. Eslami, M.R., Ahmadian, H. and Ayatollahi, M.R., (1990) " Static and Dynamic Finite Element Solution of Shell and Plate of Revolution on Elastic Foundation", Proceedings of ASME-Pressure Vessel and Piping Conference , Nashville, TN., Vol. 194, PP. 21-
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