Ali Ghaseminezhad Koushali
Shahid Beheshti University
Crack growth resistance curveComposite numberSimulated annealingCeramicFinite element methodElectrospinningCreepComposite materialEpoxyThermal shockThermal barrier coatingFlexural strengthMaterials scienceStochastic optimizationPolypropyleneComposite plateTurbineStress concentrationPlane stressThermal fatiguePower stationStress intensity factorFracture mechanicsDelaminationCritical valueCrack closureForensic engineeringParticle swarm optimizationStress (mechanics)Nanofiber
4Publications
2H-index
6Citations
Publications 4
Newest
Last. Ali Ghaseminezhad Koushali (Shahid Beheshti University)H-Index: 2
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The necessity to produce modern composites with an acceptable impact resistance is an essential task in automobile and aerospace industry that needs to be satisfied. This capability is addressed by noteworthy energy absorption augmentation which is the most vital characteristic of such composite materials. In this paper, nanofibers are applied as interleaves to modify the delamination strength with a minimum rise in weight and thickness of the high-modulus polypropylene/epoxy composites. Nylon 6...
1 CitationsSource
#1Ali Ghaseminezhad Koushali (Shahid Beheshti University)H-Index: 2
#2Mansour NazariH-Index: 12
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Turbine entry temperature of turbo-engines has been increased to improve proficiency. Consequently, protecting the hot section elements experiencing aggressive service conditions necessitates the applying of thermal barrier coatings (TBC). Developing TBC systems and improving performance is an ongoing endeavour to prolong the lifetime. Thus, various studies have been conducted to find the optimum properties and dimensions. In this paper, the optimum thickness of intermediate bond coat (BC) and t...
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#1Ali Ghaseminezhad Koushali (Shahid Beheshti University)H-Index: 2
#2Mahmood Sameezadeh (Shahid Beheshti University)H-Index: 3
Last. Pedram Safarpour (Shahid Beheshti University)H-Index: 4
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Abstract Increasing the temperature of the combustion products in power plant turbines is one of the easiest way to enhance the efficiency and decrease the fuel costs. Therefore, using thermal barrier coating (TBC) to protect the load carrying components in the hot gas path is inevitable. In this manuscript, the damage caused by trip shutdown in power plants as an emergency thermal shock is investigated based on analytical and finite element (FE) analysis for in-plane stress condition. The used ...
3 CitationsSource
#1Ali Ghaseminezhad Koushali (Shahid Beheshti University)H-Index: 2
#2Mahmood Sameezadeh (Shahid Beheshti University)H-Index: 3
Last. Pedram Safarpour (Shahid Beheshti University)H-Index: 4
view all 4 authors...
Abstract Demand for enhanced jet engine efficiencies has led to a significant increase in the combustion temperature. Thus protecting components against the combustion products is necessary and is possible by using thermal barrier coatings (TBCs). In this research, thermal fatigue and creep interaction are studied via analytical and numerical finite element methods. Thermal stress and crack propagation analyses in the ceramic top coat are carried out based on plane stress condition and under inh...
3 CitationsSource