Hamid Jahed

Hamid Jahed is a Professor in the Mechanical and Mechatronics Engineering Department. He is the Director of the Fatigue and Stress Analysis Laboratory (FATSLab) at the University of Waterloo.

Professor Jahed’s research interests lie in the mutiscale characterization, modelling, and life enhancement of lightweight materials under cyclic loading, and the development of solid-state additive manufacturing using cold spray technology.

Work in the Fatigue and Stress Analysis Laboratory focuses on fatigue and fracture properties of materials and weldments under uniaxial and multi-axial loads, development of cyclic plasticity and life prediction models for anisotropic materials, residual stress formations and measurements, and cold spray coating technology. Other areas of work include the study and development of robust and efficient methods for durability analysis and their applications to Computer-Aided Engineering design.

Professor Jahed has received a number of awards including Faculty of Engineering and Sandford Fleming Foundation Teaching Excellence Award, and Engineering Research Excellence Award.

Dr. Jahed has established a strong research partnership with OEMs and Tier 1 suppliers and is leading several large partnership projects. He has trained 73 graduate students and is currently supervising 5 postdoctoral fellow /research associate, 11 PhD and 2 MASc students.

• Durability of materials and structures
• Fatigue of lightweight materials
• Fatigue of magnesium alloys
• Fatigue of mechanical joints
• Fatigue of spot welds
• Low cycle fatigue
• Cyclic plasticity
• Variable material property method
• Notch analysis
• Residual stress measurements and predictions
• Cold spray coating
• Solid-state additive manufacturing
• Corrosion fatigue
• Finite Deformation
• Automotive
• Aerospace
• Advanced Manufacturing
• Additive Manufacturing

• 1997, Doctorate, Mechanical Engineering, University of Waterloo
• 1982, Master's, Mechanical Engineering, University of Houston
• 1981, Bachelor's, Mechanical Engineering, University of Houston

• AA Roostaei, H Jahed, A cyclic small-strain plasticity model for wrought Mg alloys under multiaxial loading: Numerical implementation and validation, International Journal of Mechanical Sciences, 145, 2018, 318 - 329
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• Y Xue, X Pang, B Jiang, H Jahed, Influence of Micro-arc Oxidation Coatings on Corrosion Performances of AZ80 cast alloy, Int. J. Electrochem. Sci, 13, 2018, 7265 - 7281
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• Gryguc A, Behravesh B, Shaha S, Jahed H, Wells M, Williams B, Su X,, Low-Cycle Fatigue Characterization and Texture Induced Ratcheting Behaviour of Forged AZ80 Mg Alloys, International Journal of Fatigue, 2018
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• Karparvarfard SMH, Shaha SK, Behravesh SB, Jahed H, Williams B, Fatigue characteristics and modeling of cast and cast-forged ZK60 magnesium alloy, International Journal of Fatigue, 2018
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• Dayani SB, Ghelichi R, Shaha SK, Wang JF, Jahed H, The impact of Al7075 cold spray coating on the fatigue life of AZ31B cast alloy, Surface & Coatings Technology, 337, 2018, 150 - 158
• Faghih S, Behravesh B, Jahed H, Variable Material Properties (VMP) approach: a review on twenty years of progress, Pressure Vessels Technology, Transaction of ASME, 2018
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• Marzban B, Jahed H, Toyserkani E, On the evolution of substrate’s residual stress during the cold spray process: a parametric study, Materials and Design, 138, 2018, 90 - 102
• Karparvarfard A, Shaha S, Behravesh B, Jahed H, Williams B, Microstructure, texture, and mechanical behavior characterization of hot forged cast ZK60 magnesium alloy, Journal of Materials Science & Technology, 33, 2017, 907 - 918
• Gryguc A, Shaha S, Behravesh B, Jahed H, Wells M, Williams B, Su X, Monotonic and cyclic behaviour of cast and cast-forged AZ80 Mg, International Journal of Fatigue, 104, 2017, 136 - 149
• Toscano D, Shaha SK, Behravesh B, Jahed H, Williams B, Effect of forging on microstructure, texture, and uniaxial properties of cast AZ31B alloy, Journal of Materials Engineering and Performance, 26, 2017, 3090 - 3103
• Sun M, Behravesh SB, Wu L, Zhou Y, Jahed H, Fatigue behavior of dissimilar Al 5052 and Mg AZ31 resistance spot welds with Sn-coated steel interlayer, Fatigue & Fracture of Engineering Materials & Structures, 40(7), 2017, 1048 - 1058
• Roostaei A, Jahed H, Multiaxial cyclic behaviour and fatigue modelling of AM30 Mg alloy extrusion, International Journal of Fatigue, 97, 2017, 150 - 161
• Khodabakhshi F, Marzbanrad B, Shah LH, Jahed H, Gerlich AP, Friction-stir processing of a cold sprayed AZ31B-AA7075 bi-metallic structure: Structural homogeneity, microstructural evolution and mechanical durability, Surface & Coatings Technology, 331, 2017, 116 - 128
• Hadadzadeh A, Wells M, Shaha S, Jahed H, Williams B, Role of compression direction on recrystallization behavior and texture evolution during hot deformation of extruded ZK60 magnesium alloy, Journal of Alloys and Compounds, 702, 2017, 274 - 289
• Toscano D, Shaha SK, Behravesh B, Jahed H, Williams B, Effect of forging on the low cycle fatigue behavior of cast AZ31B alloy, Materials Science & Engineering: A, 706, 2017, 136 - 149
• Diab M, Pang X, Jahed H, The effect of aluminum cold spray coating on corrosion and corrosion fatigue of AZ31B extrusion, Surface & Coatings Technology, 309, 2017, 423 - 435
• Jahadi R, Sedighi, M, Jahed, H, Effects of aluminum and copper cover tube casing on the ECAP process of AM30 magnesium alloy, Materials and Manufacturing Processes, 32(12), 2017, 1375 - 1383
• Marzbanrad, B and Toyserkani, E and Jahed, H, Cyclic hysteresis of AZ31B extrusion under load-control tests using embedded sensor technology, Fatigue & Fracture of Engineering Materials & Structures, 40(2), 2016, 221 - 232
• Khayamian, Mohammad Ali and Behravesh, Behzad and Jahed, Hamid, Incorporation of asymmetric yield and hardening behaviour in axisymmetric elastoplastic problems, Materials & Design, 99, 2016, 490 - 499
• Marzbanrad, Bahareh and Jahed, Hamid and Toyserkani, Ehsan, On the sensitivity and repeatability of fiber Bragg grating sensors used in strain and material degradation measurement of magnesium alloys under cyclic loads, The International Journal of Advanced Manufacturing Technology, 2016, 1 - 9
• Roostaei, Ali A and Jahed, Hamid, Role of loading direction on cyclic behaviour characteristics of AM30 extrusion and its fatigue damage modelling, Materials Science and Engineering: A, 670, 2016, 26 - 40
• Ghovanlou, Morvarid K and Jahed, Hamid and Khajepour, Amir, Cohesive zone modeling of fatigue crack growth in brazed joints, Engineering Fracture Mechanics, 120, 2014, 43 - 59