gowolabi's picture
Gbadebo Moses
Owolabi

Contact

Office: 
L.K. Downing Hall, Room 3032
Phone: 
202-806-6594
Email: 
gbadebo.owolabi@howard.edu

Faculty Details

Rank: 
Associate Professor
Education: 

University of Manitoba-Mechanical Engineering Ph.D., 2005
Memorial University-Mechanical Engineering, MS (with Distinction), 2001
Obafemi Awolowo University-Mechanical Engineering (First Class Honors), 1997.

Speciality: 

Mechanics of Materials: Fatigue and Fracture Mechanics, Impact Physics
Structural Health Monitoring using Acoustic emission, Ultrasound and Vibration-based techniques

Subjects Taught: 

Materials Science
Mechanical Design I, II
Finite Element Analysis
Special Topics in Solid Mechanics
Advanced Dynamics
Continuum Mechanics
Experimentation I-Measurement and Instrumentation

Research: 

Fatigue and Fracture Mechanics
Multiscale Modeling and Simulations
Constitutive Modeling and Finite element Applications
High Strain Rate Testing and Materials Characterization
Structural Health Monitoring

Detailed Information

About Me: 

Professor Owolabi obtained his B.S (First Class Honors) degree from the Obafemi Awolowo University, Nigeria and his PhD from the University of Manitoba, Canada. Prior to joining Howard University, he was a Visiting Research Scholar at Georgia Institute of Technology sponsored by the Government of Canada through the Prestigious Natural Science and Engineering Research Council of Canada Fellowship. His recent research focuses on developing novel simulation-based strategies for predicting the formation and growth of small cracks in advanced materials and structures for numerous applications in large-scale industries including aerospace, ship/marine structures, pressure vessels, and other applications where fatigue is a critical issue in reliability analysis. In the last four years, Professor Owolabi has received research grant awards of over 2.8 millions dollars from the Department of Defense, the Air Force Office of Scientific Research, the Army Research Office, and the National Science Foundation to support his research activities in the area of Fatigue and Fracture Mechanics at Various Scales, High Strain Rate Testing and Material Characterization, and Structural Integrity and Health Monitoring.

Funded Research Grants and Contracts (Professor Owolabi has served as the Principal Investigator of External Research Grants of over $2.5 millions from 2012-date):

1. Department of Defense: Dynamic Response of Ultrafine Grain Materials (PI: $596,225; 2015-2018).
2. Filter Sensing Technology: Vibration-Based Cleaning for Ash Removal from Diesel Particulate Filters (PI: $70,000; 2015-2016).
3. Department of Defense-Army Research Office: Dynamic Failure of Aluminum and Polymer Matrix Composites at High Strain Rates (PI: $514,515, 2012-2016).
4. Department of Defense-Air Force Office of Scientific Research: Microstructure-Sensitive Fatigue Design for Notched Components, (PI: $479,517, 2011-2014).
5. Department of Defense-DURIP: Thermo-mechanical Tension-Torsion Testing System (PI: $525,000, 2012-2013).
6. National Science Foundation-MRI: Acquisition of a Biaxial System to advance research, education and training at Howard University (PI: $367,000, 2012-2014).
7. Department of Defense: Undergraduate Research Apprenticeship Program (URAP) in Fatigue and Fracture Mechanics (PI: $8,880, 2012).
8. Department of Defense: Undergraduate Research Apprenticeship Program (URAP) in Dynamic Failure of Materials (PI: $8,880, 2012).
9. Howard University: Acquisition of a State-of-the-Art Oscilloscope to Complement Existing Facilities for Research in the Area of Mechanics of Materials (PI: $9,360, 2012).

Applied Mechanics and Materials Research Laboratory (AMMRL)
Directors: Dr. Gbadebo Moses Owolabi, Dr. Horace A. Whitworth
The Applied Mechanics and Materials Research Laboratory (AMMRL) supports research activities in the areas of materials testing and characterization for advanced materials at various strain rates and temperature. AMMRL is located in Room G 021, L.K. Downing Engineering Building at Howard University. The laboratory is equipped with state-of-the-art facilities for measuring loads and deformation at various strain rates and temperatures. These instrumentations include: split Hopkinson pressure bars; two uniaxial load frames (one MTS and the other Instron machine); two biaxial thermomechanical servohydrualic test systems; high speed digital cameras with frame rate of 1 million frames per second; one digital image correlation system with frame rate of 60 frames per second; one infra-red tomography system; one long distance optical microscope with cameras; Nikon MA200 metallurgical microscopes and several specimen preparation tools including Struer’s secotom-15 (for cutting sample) and labopol-5 (for polishing).

Our recent research activities in the area of fatigue focus on developing novel methods for predicting the formation and growth of small cracks in advanced materials and structures for numerous applications in large-scale industries including aerospace, ship/marine structures, pressure vessels, and other applications where fatigue is a critical issue in reliability analysis. This research will provide a great deal of information and considerable insight into design against formation and growth of cracks at notches in safety critical components such as turbine disks and blades. It will also facilitate better life predictions on existing components and more efficient new component designs for many applications that couple microstructure with component level analysis. We are also actively involved in funded research projects in the area of dynamic response of materials under ballistic impact and shock loads. These projects are aimed at providing a deeper understanding of the mechanisms of deformation and damage tolerance of aluminum-based alloys and metal matrix composites under high velocity impact and shock loads. Our research activities are done in collaboration with the Army Research Lab at Aberdeen Proving Ground to assist with the transition of our research outcomes to enhance the performance of materials of interest to the US Army. Our research projects will facilitate valuable and extensive training of graduate and undergraduate students and postdoctoral fellows in the area of materials testing and characterization as well as modeling and simulation of advanced materials responses under various service loads using concepts at the interface of solid mechanics and materials science, add a unique interdisciplinary flavor to their research activities and give them a broader understanding of how various disciplines fit together. At present we have available positions for MS and PhD students and Postdoctoral Fellows. If interested, please contact Dr. Owolabi at gbadebo.owolabi@howard.edu.

PUBLICATIONS

Refereed Journal Papers
1. Mutiu F. ERINOSHO, Esther T. AKINLABI, Sisa PITYANA, Gbadebo OWOLABI (2017). Laser surface modification of Ti6Al4V-Cu for Improved Microhardness and Wear Resistance Properties, Journal of Materials Research (accepted).

2. Sheriff Adefemi Adekanye, Rasheedat Modupe Mahamood, Esther Titilayo Akinlabi and Moses Gbadebo Owolabi (2017). Additive Manufacturing: the Future of Manufacturing. Journal of Materials and Technology (accepted).

3. Rasheedat M. Mahamood, Esther T. Akinlabi and Moses G. Owolabi (2017). The Laser Metal Deposition Process for Product Remanufacturing: In Advanced Manufacturing Technologies, Modern Machining, Advanced Joining, Sustainable Manufacturing, 267-291.

4.. Rasheedat M. Mahamood, Esther T. Akinlabi and Moses G. Owolabi (2017). Effect of Laser Power and Powder Flow Rate on Dilution Rate and Surface Finish Produced during Laser Metal Deposition of Titanium Alloy, 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT), IEEE Explore Digital library, 6-10.

5. G.M. Owolabi, D.T. Bolling, A.A. Tiamiyu, R. Abu, A.G. Odeshi, H.A. Whitworth (2016). Shear Strain Localization in AA 2219-T8 Aluminum Alloy at High Strain Rates. Materials Science and Engineering A, 655, 212-220.

6. Gbadebo Owolabi, Alex Peterson, Ed Habtour, Jaret Riddick, Michael Coatney, Adewale Olasumboye, Denzell Bolling (2016), Dynamic response of acrylonitrile butadiene styrene under impact loading. International Journal of Mechanical and Materials Engineering, 11: 3, 1-8.

7. Gbadebo Owolabi, Oluwamayowa Okeyoyin, Adewale Olasumboye, Horace Whitworth (2016). A New Approach to Estimating the Fatigue Notch Factor of Ti-6Al-4V Components. International Journal of Fatigue, 82, 29-34.

8. Gbadebo Owolabi, Oluwamayowa Okeyoyin, Oluwakayode Bamiduro, Adewale Olasumboye, Horace Whitworth (2015). The Effects of Notch Size and Material Microstructure on the Notch Sensitivity Factor for Notched Components. Engineering Fracture Mechanics, 145, 181-196.

9. G.M. Owolabi and H.A. Whitworth (2014). Modeling and Simulation of Microstructurally Small Crack Formation and Growth in Notched Nickel-base Superalloy Component. Journal of Materials Science and Technology, 30 (3), 203-212.

10. Odoh D.O., Owolabi G.M., Odeshi A.G., (2014). Dynamic Deformation Behavior of AA2099-T8 under Compression and Torsion Loads, Dynamic Behavior of Materials, 1:1-12.

11. Gbadebo Owolabi, Oluwamayowa Okeyoyin, Oluwakayode Bamiduro, Horace Whitworth (2014). Extension of a Probabilistic Mesomechanics Based Model for Fatigue Notch Factor to Titanium Alloy Components. Procedia Materials Science, 3, 1860-1865.

12. Gbadebo Owolabi, Oluwamayowa Okeyoyin, Oluwakayode Bamiduro, Horace Whitworth (2014). Fatigue Strength Reduction Factor for Polycrystalline Nickel Base Superalloy with and without Non-Metallic Inclusion. Procedia Engineering, 74, 297-302.

13. Gbadebo Owolabi, Daniel Odoh, Alex Peterson, Akindele Odeshi, Horace Whitworth (2013). Measurement of the Deformation of Aluminum Alloys under High Strain Rates using High Speed Digital Cameras. World Journal of Mechanics, 3, 112-121.

14. Gbadebo Owolabi, Daniel Odoh, Akindele Odeshi, Horace Whitworth (2013). Occurrence of Dynamic Shear Bands in AISI 4340 Steel under Impact Loads. World Journal of Mechanics, 3, 139-145.

15. Daniel Odoh, Gbadebo Owolabi, Akindele Odeshi, Horace Whitworth (2013). Dynamic Shear band Formation in AISI 4340 Steel under Impact Loads: Modeling and Experiment. Acta Metallurgica Sinica, 26 (4), 378-384.

16. Okeyoyin, O.A., Owolabi, G.M. (2013). Application of Weakest Link Probabilistic Framework for Fatigue Notch Factor to Turbine Engine Materials. World Journal of Mechanics, 3, 237-244.

17. G.M. Owolabi and H.A. Whitworth (2013), Microstructually Small Crack Formation and Growth in Notched Turbine Engine Materials, JP Journal of Solid and Structures. Vol. 7(1), pp. 1-26.

18. G.M. Owolabi and H.A. Whitworth (2012). On the Concept of Fatigue Notch Factor. JP Journal of Solids and Structures, 6(2-3), 63-68.

19. Gbadebo Owolabi, Benedict Egboiyi, Li Shi and Horace Whitworth (2011). Microstructure-Dependent Fatigue Damage Process Zone and Notch Sensitivity Index. International Journal of Fracture. 170, 159-173.

20. G.M. Owolabi, L. Shi and H Whitworth (2011). A Micromechanics-Based Fatigue Damage Process Zone. Procedia Engineering, 10, 496-505.

21. G. Owolabi, B. Egboiyi, L. Shi, and H. Whitworth (2011). A Microstructure-Dependent Fatigue Damage Process Zone. JP Journal of Solids and Structures, 5 (1), 31-47.

22. G.M. Owolabi, R. Prasannavenkatesan and D. L. McDowell (2010). Probabilistic Framework for a Microstructure-Sensitive Fatigue Notch Factor. International Journal of Fatigue, 32(8), 1378-1388.

23. G. M. Owolabi, M.N. Bassim, J.H. Page, and M.G. Scanlon (2008). The Influence of Specific Mechanical Energy on the Ultrasonic Characteristics of Extruded Dough. Journal of Food Engineering, 86(3), 202-206.

24. G.M. Owolabi, A.G. Odeshi, M.N.K. Singh, and M.N. Bassim (2007). Dynamic Shear Band Formation in Aluminum 6061 and Aluminum 6061-T6/Al2O3 Composites. Materials Science and Engineering A, 457(1-2), 114-119.

25. G.M. Owolabi and M.N.K. Singh (2007). Extension of a Multi-Surface Plasticity Model to Two-Phase Materials. International Journal of Solids and Structures. 44 (3-4), 1086-1098.

26. A.G. Odeshi, G.M. Owolabi, and M.N. Bassim (2007). Effects of Particulate Reinforcement and Strain-Rates on Deformation and Fracture Behavior of Aluminum 6061-T6 under High Velocity Impact, Materialwissenschaft und Werkstofftechnik (Materials Science & Engineering Technology), 38 (2), 66-69.

27. Gbadebo Owolabi and Meera Nand Kaur Singh (2007). Experimental Evaluation of Two Multiphase Constitutive Models Applicable to Metal Matrix Composites under Non-Proportional Variable Amplitude Loading. Journal of Mechanics of Materials and Structures, 2(1), 131-148.

28. A.G. Odeshi, G.M. Owolabi, M.N.K. Singh, M.N. Bassim (2007). Deformation and Fracture Behavior of Metal Matrix Composites during Dynamic Mechanical Loading, Metallurgical and Materials Transaction A, 38A, 2674-2680.

29. G.M. Owolabi and M.N.K Singh (2006). A Comparison between Two Analytical Models that Approximate Notch-Root Elastic-Plastic Stress-Strain Components in Two-Phase Particle-Reinforced Metal Matrix Composites under Multiaxial Cyclic Loading: Theory. International Journal of Fatigue, 28, 910-917.

30. G.M. Owolabi and M.N.K Singh (2006). A Comparison between Two Analytical Models that Approximate Notch-Root Elastic-Plastic Stress-Strain Components in Two-Phase Particle-Reinforced Metal Matrix Composites under Multiaxial Cyclic Loading: Experiment. International Journal of Fatigue, 28, 918-925.

31. G.M. Owolabi and M.N.K Singh (2006). Nonlinear Energy-Based Relations and Numerical Procedure for Multiaxial Local Analysis. International Journal of Solids and Structures, 43(17), 5132-5146.

32. G.M. Owolabi and M.N.K. Singh (2005). Notch-Root Elastic-Plastic Strain-Stress in Particulate Metal Matrix Composites (PMMCs) subjected to General Loading Conditions. Journal of ASTM International, 2(6), 129-144.

33. G.M. Owolabi, A.S.J Swamidas and R Seshadri (2003). Crack Detection in Beams using Changes in Amplitudes and Frequencies of Frequency Response. Journal of Sound and Vibration, 265(1), 1-22.

Book Chapters

34. Odoh D.O., Owolabi G.M., Odeshi A.G., (2014), Dynamic Deformation Behavior of AA2099-T8 under Compression and Torsion Loads, Dynamic Behavior of Materials, Vol. 1: p. 1-12.

35. G.M. Owolabi and M.N.K. Singh. Notch-root elastic-plastic strain-stress in particulate metal matrix composites (PMMCs) subjected to general loading conditions. Fatigue and Fracture Mechanics (2005): 34th Volume, ASTM STP 1461. 573-588.

Refereed Conference Proceedings
36. Rasheedat M. Mahamood, Esther T. Akinlabi and Moses G. Owolabi (2017). Effect of Laser Power and Powder Flow Rate on Dilution Rate and Surface Finish Produced during Laser Metal Deposition of Titanium Alloy, 8th International Conference on Mechanical and Manufacturing Technologies, Cape Town South Africa, February 3 -6, 2017.

37. Paul Ragaller, Alexander Sappok, Leslie Bromberg, Gbadebo Owolabi, Akindele Odeshi (2016). The effect of the vibration-based ash cleaning on the mechanical properties of ceramic diesel particulate filters, Proceedings of the ASME 2016 Internal Combustion Fall Technical Conference, ICEF2016, Oct 9-12, 2016, Greenville, SC, USA, 12 pages, (on DC-ROM)

38. Okeyoyin, O.A., Owolabi, G.M. (2013), Application of Weakest Link Probabilistic Framework for Fatigue Notch Factor to Turbine Engine Materials. 13th International Conference on Fracture, Beijing China, June 16-21, 2013.

39. Okeyoyin, O.A., Owolabi, G.M. (2013), Effects of Nonmetallic Inclusions on the Fatigue Notch Factor of Polycrystalline Nickel-base Superalloy. Proceedings of the 2013 International Mechanical Engineering Congress and Exposition, Nov. 15-21, 2013, San Diego, CA, USA. Paper #: IMECE2013-63230

40. Odoh D.O., Owolabi G.M., Odeshi A.G., (2013), Dynamic deformation behavior of AA2099-T8 under compression and torsion loads, 2013 SEM Annual Conference and Exposition of Experimental and Applied Mechanics; Lombard, Illinois June 3-6 2013.

41. G.M. Owolabi, D. Odoh, A. Odeshi and H.A. Whitworth (2012), Modeling and Simulation of adiabatic Shear bands AISI 4340 Steel under Impact Loads, Proceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE-2012, November 5-11, 2012, Houston, Texas, USA: 8 pages

42. G.M. Owolabi, D. Odoh, A. Odeshi and H.A. Whitworth (2012), Full Field Measurements of the Dynamic Response of AA6061-T6 Aluminum Alloy under High Strain Rate Compression and Torsion Loads, Proceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE-2012, November 5-11, 2012, Houston, Texas, USA: 9 pages.

43. L. Shi, G.M. Owolabi and R. Prasannavenkatesan (2012), Microstructurally Small Crack Formation and Growth in Notched Component with Non-Metallic Inclusions, Proceedings of The Canadian Society for Mechanical Engineering International Congress 2012 CSME International Congress 2012 June 4-6, 2012, Winnipeg, Manitoba, Canada, 7 pages.

44. G.M. Owolabi, B. Egboiyi, H.A. Whitworth and O. Aluko (2012), On Fatigue Strength Reduction Factor, State-of-the-Art, Proceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE-2012, November 5-11, 2012, Houston, Texas, USA: 10 pages.

45. G.M. Owolabi, L. Shi and B. Egboiyi (2012), The Influence of Inclusions on Microstructurally Small Crack Formation and Growth from Notch Root, Proceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE-2012, November 5-11, 2012, Houston, Texas, USA: 10 pages.

46. Owolabi G.M., and Whitworth H.A., A New Extreme-Value Probabilistic Framework for Predicting Fatigue Crack Initiation Life of Notched Components. ASME International Mechanical Engineering Congress and Exposition, IMECE2011, November 11-17, 2011, Denver, Colorado, USA: 10 pages.

47. G.M. Owolabi, B. Egboiyi, L. Shi and H Whitworth (2011). A New Probabilistic Method for Microstructure-Dependent Fatigue Notch Factor. Proceedings of the 23rd Canadian Congress of Applied Mechanics (CANCAM’11), June 5-9, 2011, Vancouver, BC, Canada, on CD-ROM, 353-356.

48. G.M. Owolabi, L. Shi, B. Egboiyi and H Whitworth (2011). A statistical method for Predicting the Probability of Formation of Microstructurally Small Crack for Notched Components. Proceedings of the 23th Canadian Congress of Applied Mechanics (CANCAM’11), June 5-9, 2011, Vancouver, BC, Canada, on CD-ROM, 451-454.

49. O. Aluko, H.A. Whitworth and G.M. Owolabi (2012), Effect of Friction on Contact Stress Distribution in Pin-Loaded Orthotropic Plates, Proceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE-2012, November 5-11, 2012, Houston, Texas, USA: 5 pages.

50. G.M. Owolabi and D.L. McDowell (2009). Microstructure-Sensitive Fatigue Design for Notched Components. Proceedings of the 2009 International Mechanical Engineering Congress and Exposition, Nov. 13-29, 2009, Lake Beuna Vista, Florida. Volume 11: Mechanics of Solids, Structures and Fluids; 1-10, Paper #: IMECE2009-10860.

51. A.G. Odeshi, G.M. Owolabi, M.N.K. Singh and M.N. Bassim (2007). Deformation and Fracture Behavior of Metal Matrix Composites during Dynamic Mechanical Loading. Presented at TMS 2007, 136th Annual Meeting & Exhibition, Feb. 25-March 1, 2007, Orlando, Florida, USA.

52. G.M. Owolabi, M.N.K. Singh and M.N. Bassim (2006). A Model for Predicting Local Parameters in Heterogeneous Materials under Cyclic Loads with Unequal Frequencies. Anisotropy, Texture, Dislocations and Multiscale Modeling in Finite Plasticity, Viscoplasticity and Metal Forming, Proceedings of Plasticity 06, the 12th International Symposium on Plasticity and its Current Applications, July 17-22, 2006, Halifax, Nova Scotia, Canada. Editors: Akhtar S. Khan & Rehan Kazmi, ISBN 0-9659463-6-3, 355-357.

53. A.G. Odeshi, G.M. Owolabi, M.N.K. Singh, and M.N. Bassim (2006). Plastic Deformation of Ceramic Particle Reinforced Aluminum-Based Metal Matrix Composite at High Strain-Rates. In Serial: Materials and their Engineering Applications, Issue No. 024 (ISSN 1439-1597) & Conference Proceedings: 9th Materials Engineering Colloquium. Chemnitz, Germany, ISBN-10 3-0019101-1, ISBN-13 978-3-00-019101-5, 19-24.

54. G.M. Owolabi and M.N.K. Singh (2005). Experimental Evaluation of an Energy-Based Approach for Predicting Local Ratcheting in Particulate Metal Matrix Composites (PMMCs). Proceedings of the 20th Canadian Congress of Applied Mechanics, May 30-June 2, McGill University, Montreal, Canada, 1, 473-474.

55. G.M. Owolabi and M.N.K. Singh (2003). A Comparison between Two Models that Predict the Elastic-Plastic Behavior of PMMCs Materials under Multiaxial Fatigue Type Loading. Proceedings of the 2003 International Mechanical Engineering Congress and Exposition, Nov. 16-23, 2003, Washington D.C., USA, IMECE 2003. Paper #: 42001: 10 pages, on CD ROM.

56. G.M. Owolabi and M.N.K Singh (2003). Notch-Root Elastic-Plastic Strain-Stress in PMMC subjected to General Loading Conditions. Second International ASTM/ESIS Symposium on Fatigue and Fracture, Nov. 16-21, 2003, Tampa, Florida, USA.

57. G.M. Owolabi and M.N.K. Singh (2003). Elastic-Plastic Behavior of Notched PMMCs under Multiaxial Loading. Proceedings of the 19th Canadian Congress of Applied Mechanics, University of Calgary, Alberta, Canada, June 01-05, 2003, 1, 132-133.

58. G.M. Owolabi, A.S.J. Swamidas, and R. Seshadri (2001). Crack detections in beams using modal analysis. Proceedings of the 18th Canadian Congress of Applied Mechanics, Memorial University of Newfoundland, St. John’s, Newfoundland, Canada, June 03-06, 2001. 1: 69-70.

News

Congratulations to the Howard University Class of 2016 Mechanical Engineering Department Graduates!

Thu, June, 23 2016

Congratulations to the Howard University Class of 2016 Mechanical Engineering Department Graduates!Read More >>

Mechanical Engineering Students Presented Oral and Poster Presentations on their Research at Howard University's Annual Research Symposium Thursday April 14th, 2016

Tue, April, 19 2016

Howard University held it's annual Research Symposium April 14th, 2016 as part of its week of events for Research Week. Three students from the department of mechanical engineering presented oral and poster presentations on their current research.Read More >>

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