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Journal Articles

Analytical Formulation to Predict Residual Stresses in Thick-Walled Cylinders Subjected to Hoop Winding, Shrink-Fit, and Conventional and Reverse Autofrettages

Mohamed Elfar, Ramin Sedaghati, Ossama R. Abdelsalam
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. April 2024, 146(2): 021501.
Paper No: PVT-23-1051
https://doi.org/10.1115/1.4064579
Published Online: February 26, 2024
View Article titled, Analytical Formulation to Predict Residual Stresses in Thick-Walled Cylinders Subjected to Hoop Winding, Shrink-Fit, and Conventional and Reverse Autofrettages
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Topics: Autofrettage, Cylinders, Stress, Winding (process), Wire, Modeling, Pressure
Proceedings Papers

Linear and Nonlinear Viscoelastic Behavior of MR Fluids: Effect of Temperature

Masoud Hemmatian, Ramin Sedaghati, Subhash Rakheja
Proc. ASME. SMASIS2018, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation, V001T01A011, September 10–12, 2018
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2018-8033
https://doi.org/10.1115/SMASIS2018-8033
View Paper titled, Linear and Nonlinear Viscoelastic Behavior of MR Fluids: Effect of Temperature
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Topics: Fluids, Temperature, Viscoelasticity, Magnetic fields, Shear (Mechanics), Density, Magnetic induction, Rheology, Rheometers, Storage
Proceedings Papers

Static and Dynamic Characterization of Magnetorheological Elastomers Under Shear Mode Operation

Ashkan Dargahi, Ramin Sedaghati, Subhash Rakheja
Proc. ASME. SMASIS2018, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation, V001T01A020, September 10–12, 2018
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2018-8209
https://doi.org/10.1115/SMASIS2018-8209
View Paper titled, Static and Dynamic Characterization of Magnetorheological Elastomers Under Shear Mode Operation
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Topics: Elastomers, Shear (Mechanics), Iron, Magnetic induction, Particulate matter, Excitation, Shear modulus, Stress
Proceedings Papers

Crashworthiness Study of Helicopter Skid Landing Gear System Equipped With a Magnetorheological Energy Absorber

Muftah Saleh, Ramin Sedaghati, Rama Bhat
Proc. ASME. SMASIS2017, Volume 2: Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation; Structural Health Monitoring, V002T03A009, September 18–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2017-3755
https://doi.org/10.1115/SMASIS2017-3755
View Paper titled, Crashworthiness Study of Helicopter Skid Landing Gear System Equipped With a Magnetorheological Energy Absorber
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Topics: Crashworthiness, Gears, Dampers, Absorption, Compression, Oscillations, Rotors, Aviation, Commercial air transport, Computer simulation
Proceedings Papers

Design Optimization of a Bi-Fold Magnetorheological Damper Subject to Impact Loads

Muftah Saleh, Ramin Sedaghati, Rama Bhat
Proc. ASME. SMASIS2017, Volume 2: Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation; Structural Health Monitoring, V002T03A007, September 18–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2017-3753
https://doi.org/10.1115/SMASIS2017-3753
View Paper titled, Design Optimization of a Bi-Fold Magnetorheological Damper Subject to Impact Loads
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Topics: Dampers, Design, Optimization, Stress, Damping, Valves, Crashworthiness, Flow (Dynamics), Fluids, Geometry
Proceedings Papers

Semi-Active Control of Sound Radiated From an Elastic Circular Plate Integrated With Adaptive Tuned Vibration Absorbers

Masoud Hemmatian, Ramin Sedaghati
Proc. ASME. SMASIS2016, Volume 2: Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting, V002T03A004, September 28–30, 2016
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2016-9058
https://doi.org/10.1115/SMASIS2016-9058
View Paper titled, Semi-Active Control of Sound Radiated From an Elastic Circular Plate Integrated With Adaptive Tuned Vibration Absorbers
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Topics: Vibration absorbers, Control equipment, Displacement, Elastic plates, Elastomers, Electromagnets, Noise control, Plate theory, Shear (Mechanics), Sound pressure
Proceedings Papers

Sound Transmission Loss of Adaptive Sandwich Panels Treated With MR Fluid Core Layer

Masoud Hemmatian, Ramin Sedaghati
Proc. ASME. SMASIS2016, Volume 2: Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting, V002T03A005, September 28–30, 2016
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2016-9059
https://doi.org/10.1115/SMASIS2016-9059
View Paper titled, Sound Transmission Loss of Adaptive Sandwich Panels Treated With MR Fluid Core Layer
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Topics: Fluids, Sound, Magnetic fields, Resonance, Shear modulus, Viscoelastic materials
Proceedings Papers

Design Optimization of a Magneto-Rheological Fluid Brake for Vehicle Applications

Hadi Shamieh, Ramin Sedaghati
Proc. ASME. SMASIS2016, Volume 2: Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting, V002T03A008, September 28–30, 2016
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2016-9084
https://doi.org/10.1115/SMASIS2016-9084
View Paper titled, Design Optimization of a Magneto-Rheological Fluid Brake for Vehicle Applications
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Topics: Brakes, Design, Fluids, Optimization, Rheology, Vehicles, Braking, Circuits, Electric current, Materials properties
Proceedings Papers

Developing a Generalized Harmonic Balance Method for Accurate Identification of Crack Depth in a Continuous Shaft-Disc System

Hamid Khorrami, Ramin Sedaghati, Subhash Rakheja
Proc. ASME. SMASIS2015, Volume 2: Integrated System Design and Implementation; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T05A007, September 21–23, 2015
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2015-8954
https://doi.org/10.1115/SMASIS2015-8954
View Paper titled, Developing a Generalized Harmonic Balance Method for Accurate Identification of Crack Depth in a Continuous Shaft-Disc System
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Topics: Disks, Fracture (Materials), Crack detection, Bearings, Fatigue cracks, Finite element model, Vibration
Proceedings Papers

A Hybrid Model for Characterizing Pre-Yield Properties of MR Fluids

Mehdi Eshaghi, Ramin Sedaghati, Subash Rakheja
Proc. ASME. IMECE2014, Volume 4B: Dynamics, Vibration, and Control, V04BT04A059, November 14–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2014-36785
https://doi.org/10.1115/IMECE2014-36785
View Paper titled, A Hybrid Model for Characterizing Pre-Yield Properties of MR Fluids
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Topics: Fluids, Magnetic fields, Excitation, Shear modulus, Aluminum, Copper, Damping, Finite element analysis, Finite element model, Magnetic flux
Proceedings Papers

Hybrid Torsional Vibration Damper Incorporating Conventional Centrifugal Pendulum Vibration Absorber and Magnetorheological Damper

Ehab Abouobaia, Rama Bhat, Ramin Sedaghati
Proc. ASME. SMASIS2014, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation, V001T03A014, September 8–10, 2014
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2014-7482
https://doi.org/10.1115/SMASIS2014-7482
View Paper titled, Hybrid Torsional Vibration Damper Incorporating Conventional Centrifugal Pendulum Vibration Absorber and Magnetorheological Damper
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Topics: Dampers, Pendulums, Vibration absorbers, Vibration dampers, Rotors, Vibration, Excitation, Torque
Proceedings Papers

Structural Health Monitoring of Truss Type Structures Using Statistical Approach

Mahdi Saffari, Ramin Sedaghati, Ion Stiharu
Proc. ASME. SMASIS2014, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation, V001T05A002, September 8–10, 2014
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2014-7486
https://doi.org/10.1115/SMASIS2014-7486
View Paper titled, Structural Health Monitoring of Truss Type Structures Using Statistical Approach
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Topics: Structural health monitoring, Trusses (Building), Support vector machines, Damage, Signals, Sensors, Finite element methods, Fracture (Materials), Random excitation, Sensitivity analysis
Proceedings Papers

Dynamic Characterization of a Partially Treated MR Based Sandwich Plate: Finite Element Modeling and Experimental Study

Mehdi Eshaghi, Ramin Sedaghati, Subhash Rakheja
Proc. ASME. SMASIS2014, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation, V001T03A019, September 8–10, 2014
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2014-7543
https://doi.org/10.1115/SMASIS2014-7543
View Paper titled, Dynamic Characterization of a Partially Treated MR Based Sandwich Plate: Finite Element Modeling and Experimental Study
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Topics: Finite element analysis, Modeling, Fluids, Magnetic fields, Aluminum, Deformation, Equations of motion, Excitation, Finite element model, Shear (Mechanics)
Proceedings Papers

Free Vibration Analysis of Electrorheological Fluid Sandwich Shell Structures Subjected to Large Deformation

Farough Mohammadi, Ramin Sedaghati
Proc. ASME. SMASIS2013, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation, V001T03A005, September 16–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2013-3025
https://doi.org/10.1115/SMASIS2013-3025
View Paper titled, Free Vibration Analysis of Electrorheological Fluid Sandwich Shell Structures Subjected to Large Deformation
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Topics: Deformation, Electrorheological fluids, Free vibrations, Shells, Finite element analysis, Stiffness, Damping, Electric fields, Equations of motion, Nonlinear vibration
Proceedings Papers

Outer Surface Prior to Inner Surface Double Autofrettage Technique for a Compound Cylinder

Ossama R. Abdelsalam, Ramin Sedaghati
Proc. ASME. PVP2013, Volume 3: Design and Analysis, V003T03A087, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97035
https://doi.org/10.1115/PVP2013-97035
View Paper titled, Outer Surface Prior to Inner Surface Double Autofrettage Technique for a Compound Cylinder
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Topics: Autofrettage, Cylinders, Stress, Cycles, Fatigue life, Design, Load bearing capacity, Pressure vessels
Journal Articles

Coupled Thermomechanical Analysis of Autofrettaged and Shrink-Fitted Compound Cylindrical Shells

Ossama R. Abdelsalam, Ramin Sedaghati
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. February 2014, 136(1): 011204.
Paper No: PVT-13-1035
https://doi.org/10.1115/1.4025115
Published Online: October 23, 2013
View Article titled, Coupled Thermomechanical Analysis of Autofrettaged and Shrink-Fitted Compound Cylindrical Shells
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Topics: Autofrettage, Cylinders, Fatigue life, Hoop stress, Stress, Thermomechanics, Pressure, Temperature, Finite element model, Thermoelasticity
Proceedings Papers

Vibration Analysis and Optimization of Sandwiched Beam Structure Using Higher Order Variation of Core Layer Displacement

Jasrobin Singh Grewal, Ramin Sedaghati, Ebrahim Esmailzadeh
Proc. ASME. IDETC-CIE2012, Volume 1: 24th Conference on Mechanical Vibration and Noise, Parts A and B, 903-910, August 12–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: DETC2012-71547
https://doi.org/10.1115/DETC2012-71547
View Paper titled, Vibration Analysis and Optimization of Sandwiched Beam Structure Using Higher Order Variation of Core Layer Displacement
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Topics: Displacement, Optimization, Vibration analysis, Boundary-value problems, Damping, Finite element methods, Vibration
Journal Articles

Design Optimization of Compound Cylinders Subjected to Autofrettage and Shrink-Fitting Processes

Ossama R. Abdelsalam, Ramin Sedaghati
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. April 2013, 135(2): 021209.
Paper No: PVT-12-1094
https://doi.org/10.1115/1.4007960
Published Online: March 18, 2013
View Article titled, Design Optimization of Compound Cylinders Subjected to Autofrettage and Shrink-Fitting Processes
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Topics: Autofrettage, Cylinders, Design, Fatigue life, Hoop stress, Optimization, Finite element model, Fittings, Stress, Pressure
Proceedings Papers

Optimal Location of the MR Fluid Segments in the Partially Treated Magnetorheological Fluid Sandwich Beam

Vasudevan Rajamohan, Ramin Sedaghati, Subhash Rakheja
Proc. ASME. IDETC-CIE2010, Volume 5: 22nd International Conference on Design Theory and Methodology; Special Conference on Mechanical Vibration and Noise, 669-676, August 15–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: DETC2010-28236
https://doi.org/10.1115/DETC2010-28236
View Paper titled, Optimal Location of the MR Fluid Segments in the Partially Treated Magnetorheological Fluid Sandwich Beam
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Topics: Fluids, Damping, Optimization, Design, Finite element methods, Finite element model, Genetic algorithms, Vibration
Proceedings Papers

Analysis of Partially Treated Multi-Layer Beam With Magnetorheological Fluid

Vasudevan Rajamohan, Ramin Sedaghati, Subhash Rakheja
Proc. ASME. IMECE2009, Volume 15: Sound, Vibration and Design, 397-406, November 13–19, 2009
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2009-11371
https://doi.org/10.1115/IMECE2009-11371
View Paper titled, Analysis of Partially Treated Multi-Layer Beam With Magnetorheological Fluid
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Topics: Fluids, Boundary-value problems, Finite element analysis, Magnetic fields, Vibration, Displacement, Engineering simulation, Rheology, Simulation, Simulation results