1-15 of 15
Jalees Ahmad
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Life Prediction of Metal Matrix Composites: A Comparison of Different Matrix Constitutive Relations

Jalees Ahmad, Unnikrishnan Santhosh
Proc. ASME. IMECE98, Recent Advances in Mechanics of Aerospace Structures and Materials, 97-108, November 15–20, 1998
Paper No: IMECE1998-0366
DOI: https://doi.org/10.1115/IMECE1998-0366
View Paper
PDF
Topics: Constitutive equations, Metal matrix composites, Fibers, Deformation, Composite materials, Damage, Residual stresses, Stress, Finite element analysis, Fracture (Materials)
Proceedings Papers

Prediction of Metal Matrix Composite Response to Multiaxial Stresses

Jalees Ahmad, Golam M. Newaz, Theodore Nicholas
Proc. ASME. IMECE98, Recent Advances in Mechanics of Aerospace Structures and Materials, 43-59, November 15–20, 1998
Paper No: IMECE1998-0359
DOI: https://doi.org/10.1115/IMECE1998-0359
View Paper
PDF
Topics: Metal matrix composites, Stress, Composite materials, Damage, Deformation, Design, Finite element analysis, Stress analysis (Engineering)
Proceedings Papers

An Approach for MMC Component Design

Jalees Ahmad, Unnikrishnan Santhosh, Golam M. Newaz, Theodore Nicholas
Proc. ASME. IMECE99, Advances in Aerospace Materials and Structures, 165, November 14–19, 1999
Paper No: IMECE1999-0146
DOI: https://doi.org/10.1115/IMECE1999-0146
View Paper
PDF
Topics: Design, Metal matrix composites, Damage, Deformation, Stress, Modeling, Fibers, Titanium, Composite materials, Rotors
Journal Articles

An Investigation of the End-Notched Flexure and End-Loaded Split Tests Applied to the Mode II Interlaminar Fracture of a SiC/SiC Ceramic Matrix Composite

Michael J. Presby, Manigandan Kannan, Gregory N. Morscher, Cody Godines, Amirhossein Eftekharian, Jalees Ahmad, Frank Abdi, Sung R. Choi
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2020, 142(4): 041027.
Paper No: GTP-19-1312
DOI: https://doi.org/10.1115/1.4044490
Published Online: February 18, 2020
View Article
PDF
Topics: Bending (Stress), Fracture (Materials), Fracture toughness, Testing, Ceramic matrix composites
Proceedings Papers

An Investigation of the End-Notched Flexure and End-Loaded Split Tests Applied to the Mode II Interlaminar Fracture of a SiC/SiC Ceramic Matrix Composite

Michael J. Presby, K. Manigandan, Gregory N. Morscher, Cody Godines, Amir Eftekharian, Jalees Ahmad, Frank Abdi, Sung R. Choi
Proc. ASME. GT2019, Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T02A001, June 17–21, 2019
Paper No: GT2019-90031
DOI: https://doi.org/10.1115/GT2019-90031
View Paper
PDF
Topics: Bending (Stress), Ceramic matrix composites, Composite materials, Delamination, Fracture (Materials), Fracture toughness, Silicon carbide ceramics
Proceedings Papers

CMC Mode II Crack Growth Resistance Prediction of ASTM Specimen and Test Validation

Frank Abdi, Cody Godines, Michael J. Presby, Amir Eftekharian, Jalees Ahmad, Sung Choi, Gregory N. Morscher, Steve Gonczy, Jun Shi
Proc. ASME. GT2019, Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T02A011, June 17–21, 2019
Paper No: GT2019-90985
DOI: https://doi.org/10.1115/GT2019-90985
View Paper
PDF
Topics: Adhesives, ASTM International, Ceramic matrix composites, Density, Design, Failure, Failure analysis, Fracture (Materials), Fracture toughness
Proceedings Papers

Development of ASTM Test Standards for the Mode I Interlaminar Fracture Toughness (G Ic --Crack Growth Resistance) of Ceramic Matrix Composites

Frank Abdi, Jalees Ahmad, Saber DorMohammadi, Cody Godines, Stephen Gonczy, Rabih Mansour, Gregory N. Morscher, Sung Choi, Jun Shi, Greg Ojard
Proc. ASME. GT2018, Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T02A014, June 11–15, 2018
Paper No: GT2018-77147
DOI: https://doi.org/10.1115/GT2018-77147
View Paper
PDF
Topics: ASTM International, Ceramic matrix composites, Fracture (Materials), Fracture toughness, High temperature, Wedges, Aircraft, Alloys, Bonding, Cantilever beams
Proceedings Papers

Crack Growth Resistance of Ceramic Matrix Composites and Anisotropic Stiffness Prediction/Measurement

Cody Godines, Saber DorMohammadi, Jalees Ahmad, Rabih Mansour, Gregory N. Morscher, Sung Choi, Frank Abdi
Proc. ASME. GT2018, Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T02A013, June 11–15, 2018
Paper No: GT2018-77133
DOI: https://doi.org/10.1115/GT2018-77133
View Paper
PDF
Topics: Anisotropy, Ceramic matrix composites, Fracture (Materials), Stiffness, Damage, Failure, Simulation, Temperature, Wedges, Acoustic emissions
Proceedings Papers

Crack Growth Resistance of CMC Attachment Element and Turbine Joint in Aircraft Engines

Frank Abdi, Saber DorMohammadi, Jalees Ahmad, Cody Godines, Gregory N. Morscher, Sung Choi, Rabih Mansour, Steve Gonczy, Greg Ojard
Proc. ASME. GT2017, Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T02A008, June 26–30, 2017
Paper No: GT2017-65089
DOI: https://doi.org/10.1115/GT2017-65089
View Paper
PDF
Topics: Aircraft engines, Ceramic matrix composites, Fracture (Materials), Turbines, Damage, Blocks (Building materials), Delamination, Failure, Modeling, Multiscale modeling
Proceedings Papers

Study of Interlaminar Fracture Properties of Ceramic Matrix Composites at Room and Elevated Temperatures

Rabih Mansour, Yogesh P. Singh, Manigandan Kannan, Gregory N. Morscher, Frank Abdi, Jalees Ahmad, Cody Godines, Saber DorMohammadi, Sung Choi
Proc. ASME. GT2017, Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T02A009, June 26–30, 2017
Paper No: GT2017-65168
DOI: https://doi.org/10.1115/GT2017-65168
View Paper
PDF
Topics: Ceramic matrix composites, Fracture toughness, Temperature, Fracture (Materials), Testing, Composite materials, Cross section (Physics), Electrical resistance, Engines, Failure
Proceedings Papers

Optimizing Ceramic Matrix Composite Interlaminar Fracture Toughness (Mode I) Wedge Test

Frank Abdi, Saber DorMohammadi, Jalees Ahmad, Cody Godines, Gregory N. Morscher, Sung Choi, Rabih Mansour, Steve Gonczy
Proc. ASME. GT2016, Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T02A006, June 13–17, 2016
Paper No: GT2016-58076
DOI: https://doi.org/10.1115/GT2016-58076
View Paper
PDF
Topics: Ceramic matrix composites, Fracture toughness, Wedges, Fracture (Materials), Fracture (Process), Fibers, Damage, Failure mechanisms, Finite element model, Stress
Proceedings Papers

Ceramic Matrix Composite Interlaminar Fracture Toughness (Mode I-II) Characterization

Frank Abdi, Harsh Baid, Jalees Ahmad, Steve Gonczy, Gregory N. Morscher, Sung Choi, Cody Godines
Proc. ASME. GT2015, Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy; Honors and Awards, V006T02A004, June 15–19, 2015
Paper No: GT2015-44047
DOI: https://doi.org/10.1115/GT2015-44047
View Paper
PDF
Topics: Ceramic matrix composites, Fracture toughness, Fracture (Materials), Fracture (Process), ASTM International, Failure mechanisms, Temperature, Tension, Algorithms, Bending (Stress)
Proceedings Papers

A Metal Matrix Composite Damage and Life Prediction Model

Jalees Ahmad, Unnikrishnan Santhosh, Sandra Hoff
Proc. ASME. GT1997, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T14A059, June 2–5, 1997
Paper No: 97-GT-445
DOI: https://doi.org/10.1115/97-GT-445
View Paper
PDF
Topics: Damage, Metal matrix composites, Fibers, Composite materials, Fracture (Materials), Fracture (Process), Constitutive equations, Deformation, Failure, Finite element analysis
Proceedings Papers

An Approach for Mechanistic Modeling of Ceramic Matrix Composites

Unni Santhosh, Jalees Ahmad, Robert Miller, Greg Ojard, Yasser Gowayed, Reji John
Proc. ASME. GT2006, Volume 2: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Environmental and Regulatory Affairs, 269-278, May 8–11, 2006
Paper No: GT2006-90795
DOI: https://doi.org/10.1115/GT2006-90795
View Paper
PDF
Topics: Ceramic matrix composites, Damage, Finite element analysis, Modeling, Structural analysis
Journal Articles

A Micromechanics Analysis of Cracks in Unidirectional Fiber Composites

Jalees Ahmad
Journal: Journal of Applied Mechanics
Article Type: Research Papers
J. Appl. Mech. December 1991, 58(4): 964–972.
DOI: https://doi.org/10.1115/1.2897715
Published Online: December 1, 1991
View Article
PDF
Topics: Composite materials, Fibers, Fracture (Materials), Micromechanics (Engineering), Cracking (Materials), Fracture (Process), Stress