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M. Shafiqur Rahman
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Journal Articles

An Investigation of Tensile, Fatigue, and Fracture Behavior of 3D-Printed Polymers

M. Shafiqur Rahman, Chowdhury Sadid Alam, Mohammad Khairul Habib Pulok, Congyuan Zeng, Uttam K. Chakravarty
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. January 2025, 147(1): 011001.
Paper No: MATS-24-1061
https://doi.org/10.1115/1.4065958
Published Online: August 6, 2024
View Article titled, An Investigation of Tensile, Fatigue, and Fracture Behavior of 3D-Printed Polymers
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Topics: Fatigue, Fracture (Materials), Fracture (Process), Simulation, Stress, Crack propagation, Polymers, Additive manufacturing
Journal Articles

A Machine Learning Framework for Melt-Pool Geometry Prediction and Process Parameter Optimization in the Laser Powder-Bed Fusion Process

M. Shafiqur Rahman, Naw Safrin Sattar, Radif Uddin Ahmed, Jonathan Ciaccio, Uttam K. Chakravarty
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. October 2024, 146(4): 041006.
Paper No: MATS-24-1050
https://doi.org/10.1115/1.4065687
Published Online: August 6, 2024
View Article titled, A Machine Learning Framework for Melt-Pool Geometry Prediction and Process Parameter Optimization in the Laser Powder-Bed Fusion Process
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Topics: Errors, Geometry, Lasers, Machine learning, Optimization, Porosity, Modeling, Sensitivity analysis
Includes: Supplementary data
Proceedings Papers

Tensile and Fatigue Response of Steel Parts Fabricated by the Additive Friction-Stir Deposition Process

Chowdhury Sadid Alam, Radif Uddin Ahmed, M. Shafiqur Rahman
Proc. ASME. IMECE2023, Volume 12: Micro- and Nano-Systems Engineering and Packaging, V012T13A029, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-113564
https://doi.org/10.1115/IMECE2023-113564
View Paper titled, Tensile and Fatigue Response of Steel Parts Fabricated by the Additive Friction-Stir Deposition Process
Open the PDF for Tensile and Fatigue Response of Steel Parts Fabricated by the Additive Friction-Stir Deposition Process in another window
Topics: Fatigue, Finite element analysis, Friction, Steel
Proceedings Papers

Application of Machine Learning in Process Analysis of the Friction-Stir Welding Technique

Radif Uddin Ahmed, Chowdhury Sadid Alam, M. Shafiqur Rahman
Proc. ASME. IMECE2023, Volume 4: Advanced Materials: Design, Processing, Characterization and Applications; Advances in Aerospace Technology, V004T04A061, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-114013
https://doi.org/10.1115/IMECE2023-114013
View Paper titled, Application of Machine Learning in Process Analysis of the Friction-Stir Welding Technique
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Topics: Friction, Machine learning, Task analysis, Tensile strength, Welding
Proceedings Papers

Crack Propagation and Fracture Toughness of Additively Manufactured Polymers

Mohammad Khairul Habib Pulok, M. Shafiqur Rahman, Uttam K. Chakravarty
Proc. ASME. IMECE2021, Volume 4: Advances in Aerospace Technology, V004T04A027, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-72061
https://doi.org/10.1115/IMECE2021-72061
View Paper titled, Crack Propagation and Fracture Toughness of Additively Manufactured Polymers
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Topics: Additive manufacturing, Crack propagation, Fatigue, Fracture toughness, Polymers
Proceedings Papers

A Machine Learning Approach for Predicting Melt-Pool Dynamics of Ti-6Al-4V Alloy in the Laser Powder-Bed Fusion Process

M. Shafiqur Rahman, Jonathan Ciaccio, Uttam K. Chakravarty
Proc. ASME. IMECE2021, Volume 4: Advances in Aerospace Technology, V004T04A025, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-71348
https://doi.org/10.1115/IMECE2021-71348
View Paper titled, A Machine Learning Approach for Predicting Melt-Pool Dynamics of Ti-6Al-4V Alloy in the Laser Powder-Bed Fusion Process
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Topics: Alloys, Dynamics (Mechanics), Lasers, Machine learning
Proceedings Papers

Tensile and Fatigue Response of the Laser Powder-Bed Fused Ti-6Al-4V Alloy at High Temperature Conditions

M. Shafiqur Rahman, Mohammad Khairul Habib Pulok, Uttam K. Chakravarty
Proc. ASME. IMECE2021, Volume 4: Advances in Aerospace Technology, V004T04A026, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-72043
https://doi.org/10.1115/IMECE2021-72043
View Paper titled, Tensile and Fatigue Response of the Laser Powder-Bed Fused Ti-6Al-4V Alloy at High Temperature Conditions
Open the PDF for Tensile and Fatigue Response of the Laser Powder-Bed Fused Ti-6Al-4V Alloy at High Temperature Conditions in another window
Topics: Alloys, Fatigue, Finite element analysis, High temperature, Lasers
Proceedings Papers

A Multiband RF Energy Harvesting System for Efficient Power Conversion

M. Shafiqur Rahman, Uttam K. Chakravarty
Proc. ASME. IMECE2020, Volume 13: Micro- and Nano-Systems Engineering and Packaging, V013T13A003, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-23673
https://doi.org/10.1115/IMECE2020-23673
View Paper titled, A Multiband RF Energy Harvesting System for Efficient Power Conversion
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Topics: Energy conversion, Energy harvesting
Proceedings Papers

Heat Transfer and Melt-Pool Evolution During Powder-Bed Fusion of Ti-6Al-4V Parts Under Various Laser Irradiation Conditions

M. Shafiqur Rahman, Paul J. Schilling, Paul D. Herrington, Uttam K. Chakravarty
Proc. ASME. IMECE2020, Volume 4: Advances in Aerospace Technology, V004T04A017, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-23838
https://doi.org/10.1115/IMECE2020-23838
View Paper titled, Heat Transfer and Melt-Pool Evolution During Powder-Bed Fusion of Ti-6Al-4V Parts Under Various Laser Irradiation Conditions
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Topics: Computational fluid dynamics, Dynamics (Mechanics), Heat transfer, Irradiation (Radiation exposure), Lasers
Proceedings Papers

Tensile and Fatigue Properties of Ti-6Al-4V Alloy Fabricated by Laser Powder-Bed Fusion Process

M. Shafiqur Rahman, Uttam K. Chakravarty
Proc. ASME. IMECE2020, Volume 4: Advances in Aerospace Technology, V004T04A016, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-23672
https://doi.org/10.1115/IMECE2020-23672
View Paper titled, Tensile and Fatigue Properties of Ti-6Al-4V Alloy Fabricated by Laser Powder-Bed Fusion Process
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Topics: Alloys, Fatigue, Fatigue properties, Finite element analysis, Lasers, Temperature, Stress, Fatigue life, Fatigue limit, High cycle fatigue
Journal Articles

A Comparison of the Thermo-Fluid Properties of Ti-6Al-4V Melt Pools Formed by Laser and Electron-Beam Powder-Bed Fusion Processes

M Shafiqur Rahman, Paul J. Schilling, Paul D. Herrington, Uttam K. Chakravarty
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. April 2021, 143(2): 021003.
Paper No: MATS-20-1046
https://doi.org/10.1115/1.4048371
Published Online: October 5, 2020
View Article titled, A Comparison of the Thermo-Fluid Properties of Ti-6Al-4V Melt Pools Formed by Laser and Electron-Beam Powder-Bed Fusion Processes
Open the PDF for A Comparison of the Thermo-Fluid Properties of Ti-6Al-4V Melt Pools Formed by Laser and Electron-Beam Powder-Bed Fusion Processes in another window
Topics: Cathode ray oscilloscopes, Electron beams, Geometry, Heat, Lasers, Modeling, Temperature, Thermofluids, Density, Simulation
Proceedings Papers

Characterizations of the Paper-Based Microfluidic Devices Used for Detecting Fentanyl and Related Synthetic Opioids

M. Shafiqur Rahman, Uttam K. Chakravarty
Proc. ASME. IMECE2019, Volume 1: Advances in Aerospace Technology, V001T03A026, November 11–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2019-11581
https://doi.org/10.1115/IMECE2019-11581
View Paper titled, Characterizations of the Paper-Based Microfluidic Devices Used for Detecting Fentanyl and Related Synthetic Opioids
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Topics: Computational fluid dynamics, Drugs, Fluids, Microfluidics
Proceedings Papers

Thermal Behavior and Melt-Pool Dynamics of Cu-Cr-Zr Alloy in Powder-Bed Selective Laser Melting Process

M. Shafiqur Rahman, Paul J. Schilling, Paul D. Herrington, Uttam K. Chakravarty
Proc. ASME. IMECE2019, Volume 1: Advances in Aerospace Technology, V001T03A023, November 11–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2019-11087
https://doi.org/10.1115/IMECE2019-11087
View Paper titled, Thermal Behavior and Melt-Pool Dynamics of Cu-Cr-Zr Alloy in Powder-Bed Selective Laser Melting Process
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Topics: Alloys, Computational fluid dynamics, Dynamics (Mechanics), Lasers, Melting, Zirconium
Journal Articles

Thermofluid Properties of Ti-6Al-4V Melt Pool in Powder-Bed Electron Beam Additive Manufacturing

M Shafiqur Rahman, Paul J. Schilling, Paul D. Herrington, Uttam K. Chakravarty
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research-Article
J. Eng. Mater. Technol. October 2019, 141(4): 041006.
Paper No: MATS-17-1378
https://doi.org/10.1115/1.4043342
Published Online: April 23, 2019
View Article titled, Thermofluid Properties of Ti-6Al-4V Melt Pool in Powder-Bed Electron Beam Additive Manufacturing
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Topics: Additive manufacturing, Cathode ray oscilloscopes, Computational fluid dynamics, Electron beams, Geometry, Heat, Melting, Simulation, Temperature, Thermal conductivity
Proceedings Papers

A Hybrid Energy Harvesting System Based on Solar Radiation and Mechanical Vibration

M. Shafiqur Rahman, Uttam K. Chakravarty
Proc. ASME. IMECE2018, Volume 1: Advances in Aerospace Technology, V001T03A017, November 9–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2018-86928
https://doi.org/10.1115/IMECE2018-86928
View Paper titled, A Hybrid Energy Harvesting System Based on Solar Radiation and Mechanical Vibration
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Topics: Energy harvesting, Solar radiation, Vibration, Aluminum, Cantilever beams, Capacitors, Circuits, Crystals, Electrodes, Energy efficiency
Proceedings Papers

Characterizations of Diagnostic Properties and Detection Techniques of Fentanyl and Related Synthetic Opioids

M. Shafiqur Rahman, Uttam K. Chakravarty
Proc. ASME. IMECE2018, Volume 1: Advances in Aerospace Technology, V001T03A019, November 9–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2018-87803
https://doi.org/10.1115/IMECE2018-87803
View Paper titled, Characterizations of Diagnostic Properties and Detection Techniques of Fentanyl and Related Synthetic Opioids
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Topics: Assaying, Chemical properties, Computational fluid dynamics, Computer simulation, Design, Drugs, Microfluidics, Optimization, Performance evaluation, Strips
Proceedings Papers

A Comparative Study Between Selective Laser Melting and Electron Beam Additive Manufacturing Based on Thermal Modeling

M. Shafiqur Rahman, Paul J. Schilling, Paul D. Herrington, Uttam K. Chakravarty
Proc. ASME. IMECE2018, Volume 1: Advances in Aerospace Technology, V001T03A015, November 9–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2018-86428
https://doi.org/10.1115/IMECE2018-86428
View Paper titled, A Comparative Study Between Selective Laser Melting and Electron Beam Additive Manufacturing Based on Thermal Modeling
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Topics: Additive manufacturing, Cathode ray oscilloscopes, Electron beams, Lasers, Melting, Modeling, Density, Geometry, Heat, Temperature
Proceedings Papers

Thermal Analysis of Electron Beam Additive Manufacturing Using Ti-6Al-4V Powder-Bed

M. Shafiqur Rahman, Paul J. Schilling, Paul D. Herrington, Uttam K. Chakravarty
Proc. ASME. IMECE2017, Volume 1: Advances in Aerospace Technology, V001T03A021, November 3–9, 2017
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2017-71663
https://doi.org/10.1115/IMECE2017-71663
View Paper titled, Thermal Analysis of Electron Beam Additive Manufacturing Using Ti-6Al-4V Powder-Bed
Open the PDF for Thermal Analysis of Electron Beam Additive Manufacturing Using Ti-6Al-4V Powder-Bed in another window
Topics: Additive manufacturing, Cathode ray oscilloscopes, Electron beams, Thermal analysis, Computational fluid dynamics, Density, Cooling, Dynamics (Mechanics), Energy efficiency, Engineering simulation
Proceedings Papers

Thermo-Fluid Characterizations of Ti-6Al-4V Melt Pool in Powder-Bed Electron Beam Additive Manufacturing

M. Shafiqur Rahman, Paul J. Schilling, Paul D. Herrington, Uttam K. Chakravarty
Proc. ASME. IMECE2016, Volume 1: Advances in Aerospace Technology, V001T03A016, November 11–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2016-65854
https://doi.org/10.1115/IMECE2016-65854
View Paper titled, Thermo-Fluid Characterizations of Ti-6Al-4V Melt Pool in Powder-Bed Electron Beam Additive Manufacturing
Open the PDF for Thermo-Fluid Characterizations of Ti-6Al-4V Melt Pool in Powder-Bed Electron Beam Additive Manufacturing in another window
Topics: Additive manufacturing, Cathode ray oscilloscopes, Electron beams, Thermofluids, Alloys, Computational fluid dynamics, Geometry, Cooling, Density, Design