Search Results - "Farrahi, G.H."

An approach to relate shot peening finite element simulation to the actual coverage by Gangaraj, S.M.H., Guagliano, M., Farrahi, G.H.

“…Coverage is one of the most important parameters which is always used in practice to characterize a shot peening process. At the same time however, it is the…”
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Reliability assessment of cracked pipes subjected to creep-fatigue loading by Vojdani, A., Farrahi, G.H.

“…•The contribution of creep and fatigue to the total crack growth has been evaluated in deterministic calculations.•Creep-fatigue reliability analysis have been…”
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Stress analysis of thermal barrier coating system subjected to out-of-phase thermo-mechanical loadings considering roughness and porosity effect by Rezvani Rad, M., Farrahi, G.H., Azadi, M., Ghodrati, M.

“…This paper presents the out-of-phase thermo-mechanical stress analysis of thermal barrier coating (TBC) system in real working conditions used as thermal…”
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An inverse approach to determination of residual stresses induced by shot peening in round bars by Farrahi, G.H., Faghidian, S.A., Smith, D.J.

“…In this paper an analysis is presented to determine the distribution of a residual stress field from a limited incomplete set of measurements obtained from…”
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Applications of ultrasonic testing and machine learning methods to predict the static & fatigue behavior of spot-welded joints by Amiri, N., Farrahi, G.H., Kashyzadeh, K. Reza, Chizari, M.

“…Ultrasonic Testing (UT) is one of the well-known Non-Destructive Techniques (NDT) of spot-weld inspection in the advanced industries, especially in automotive…”
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Fretting fatigue behavior of 316L stainless steel under combined loading conditions by Farrahi, G.H., Minaii, K., Bahai, H.

“…•Fretting fatigue behavior of 316L SS was examined under combined loading.•Combined load condition was induced using a designed fixture.•Increasing the bending…”
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Simulation of vehicle body spot weld failures due to fatigue by considering road roughness and vehicle velocity by Farrahi, G.H., Ahmadi, A., Reza Kasyzadeh, K.

“…•The durability analysis of the vehicle body by considering spot weld failures.•Consideration of inertia effects by utilizing a mode-based dynamic…”
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Thermo-mechanical stress analysis of thermal barrier coating system considering thickness and roughness effects by Moridi, A., Azadi, M., Farrahi, G.H.

“…Cast aluminium–silicon alloy, A356.0, is widely used in automotive and aerospace industries because of its outstanding mechanical, physical, and casting…”
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Experimental measurement and analytical determination of shot peening residual stresses considering friction and real unloading behavior by Sherafatnia, K., Farrahi, G.H., Mahmoudi, A.H., Ghasemi, A.

“…This paper presents an analytical model to predict the residual stress distribution induced by Shot peening. The analytical approach is based on the work of…”
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Multiscale modeling of nanoindentation and nanoscratching by generalized particle method by Chamani, M, Farrahi, G H

“…Most concurrent multiscale methods that expand atomistic region by continuum domain suffer from inconsistent material constitutive properties, which affect the…”
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Acoustic simulation of ultrasonic testing and neural network used for diameter prediction of three-sheet spot welded joints by Ghafarallahi, E., Farrahi, G.H., Amiri, N.

“…•Extraction of mathematical formulas for diameter calculation of spot-welded joints.•Acoustic finite element simulation of Ultrasonic Testing (UT) on…”
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Improvement of HCF life of automotive safety components considering a novel design of wheel alignment based on a Hybrid multibody dynamic, finite element, and data mining techniques by Reza Kashyzadeh, K., Farrahi, G.H.

“…•Driving conditions on real road were used to perform fatigue analysis of knuckle.•DOE techniques were used to study effect of Toe and Camber angles on the…”
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A comprehensive experimental and numerical study on redistribution of residual stresses by shot peening by Mahmoudi, A.H., Ghasemi, A., Farrahi, G.H., Sherafatnia, K.

“…Shot peening is one of the most effective surface strengthening treatment technologies in which compressive residual stresses are induced beneath the specimen…”
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Fracture toughness evaluation of 1.4841 bolt subjected to simultaneous effects of creep and hydrogen embrittlement phenomena using small punch test: A case study in a superheater of a petrochemical unit by Farrahi, G.H., Fallah, A., Reza Kashyzadeh, K.

“…•Simultaneous effects of creep and hydrogen embrittlement phenomena on the mechanical properties (yield and ultimate strength) of 1.4841 bolt was…”
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The effect of plugging of tubes on failure of shell and tube heat exchanger by Farrahi, G.H., Chamani, M., Kiyoumarsioskouei, A., Mahmoudi, A.H.

“…In shell and tube heat exchangers, deep cracks can occur in tube-to-tubesheet welding and repairing such cracks is an impossible task which makes these tubes…”
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Experimental accuracy assessment of various high-cycle fatigue criteria for a critical component with a complicated geometry and multi-input random non-proportional 3D stress components by Reza Kashyzadeh, K., Farrahi, G.H., Shariyat, M., Ahmadian, M.T.

“…In the present paper, a steering knuckle of a passenger car that serves as a highly critical component from the safety point of view, is considered to evaluate…”
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Probabilistic assessment of creep-fatigue crack propagation in austenitic stainless steel cracked plates by Vojdani, A., Farrahi, G.H., Mehmanparast, A., Wang, B.

“…•Effects of uncertainties in the prediction of creep-fatigue crack growth were studied.•Random variables were considered in geometry, material behavior, and…”
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Effect of microstructure on crack behavior in nanocrystalline nickel using molecular dynamics simulation by Moradi, M., Farrahi, G.H., Chamani, M.

“…•Concurrent study of grain boundary volume and grain size effect on the initial slope.•The trend of critical stress intensity factor changes at around grain…”
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Molecular dynamics simulation of nanoindentation of nanocrystalline Al/Ni multilayers by Chamani, M., Farrahi, G.H., Movahhedy, M.R.

“…[Display omitted] •Study of MD simulation of columnar and non columnar nanocrystalline Al substrate.•Concurrent study of grain size and layer number in…”
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Friction behavior of nanocrystalline nickel near the Hall-Petch breakdown by Chamani, M., Farrahi, G.H., Movahhedy, M.R.

“…Large-scale molecular dynamics simulations are carried out to investigate the friction behavior of nanocrystalline nickel (Ni) at low temperature. Grain sizes…”
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