MAGE Faculty

Ali, Mohammad Maqsud

Ali, Mohammad Maqsud

Lecturer
Maryland Applied Graduate Engineering
Website(s):

Overview

Dr. Mohammad Maqsud Ali is employed full-time at the US Food and Drug Administration (FDA) in White Oak, MD. As a Supervisory Mechanical Engineer in the Scientific Discipline in Center for Tobacco Products (CTP), Division of Product Science (DPS) in the Office of Science (OS) where he

  • Provides informed science-based recommendations on the effects of the design and manufacturing of tobacco products and emerging technologies from a regulatory perspective.
  • Reviews a wide range of tobacco products (Cigarettes, Smokeless products, Electronic cigarettes (ENDS), E-liquids, Cigars, Roll-your-own products, Pipes, Waterpipes) to determine the adequacy of the results from engineering disciplines.
  • Advises and assists scientists and officials on a wide range of engineering matters including active research, peer-reviewed literature and develops and implements government regulations and standards.

In addition to his role as lecturer at the University of Maryland, Dr. Ali serves as a member of the 'Literature Review Team' for Premarket Tobacco Products Applications (PMTA) and State of Science (SoS) to streamline scientific references CTP at FDA uses for engineering scientific reviews.

EDUCATION:

Ph.D., Mechanical Engineering, University of Maryland, College Park (UMD)

M.S., Mechanical Engineering, The University of Tulsa, Oklahoma (TU)

B.S., Mechanical Engineering, Bangladesh University of Engineering and Technology (BUET)

Dr. Ali’s research background encompasses the areas of Active and Passive Control of Impact Loading Vibrations, Dynamics of Multiphase Fluid Flow, Erosion of Materials, Sand Monitoring and Transport, Design Optimization, Thermal Systems including Design of HVAC Equipment.

He is also an adjunct professor with the Department of Mechanical Engineering at George Mason University (GMU), Fairfax, Virginia. 

https://catalog.gmu.edu/colleges-schools/engineering/mechanical/#faculty...

Ph.D. Thesis Abstract

Dynamic Behavior of Polyurea Composites Subjected to High Strain Rate Loading

A comprehensive theoretical and experimental study of the characterization of Polyurea viscoelastic composites subjected to high strain impact loading is conducted. The composites under consideration consist of multi-layers of polyurea/aluminum arranged in a 1D configuration. Finite element models (FEM) are developed by describing the dynamics of the viscoelastic behavior of the polyurea using the Golla-Hughes-Mctavish (GHM) mini-oscillator approach. The model enables the predictions of the structural stress, strain, strain rate, relaxation modulus, loss factor of the polyurea composites for different layering arrangements. The predictions of the developed FEM are validated against the predictions of the commercial finite element package ANSYS. Also, the FEM predictions are validated experimentally using the Split Hopkinson Pressure Bar (SHPB) which is used to monitor the dynamics of the polyurea composites at different levels of strain rates. Close agreements are demonstrated between the theoretical predictions and the obtained experimental results. Bloch wave propagation theory is used to develop an analytical model based on the transfer matrix method to identify attenuation band gaps in the dynamical response of periodically placed polyurea composites. The influence of various design parameters that control the width of pass and stop-bands including multi-layered periodic structures and different material configurations are compared. The presented theoretical and experimental approaches are envisioned to provide invaluable tools for the design of viscoelastic composites that can be used in impact mitigation and protection of critical structures subjected to high impact and blast loading.

MS Thesis Abstract

Correlation Between an Acoustic Sand Monitor Output with Particle Impact Velocity and Sand Production Rate

Sand production control is a major problem as well as a concern for the oil and gas industry. Entrained sand inside various fittings in sand-producing environments can cause erosional damage that in turn leads to production losses, high operating cost, and lower operating efficiency. The most important factors that control erosional damage are high sand production rates and particle impact velocity. By using a properly calibrated sand monitor, these two important factors can be addressed. A commercially available acoustic type sand monitor was investigated in quantifying the amount of sand and evaluation of particle impact velocity in different single-phase and multiphase flow conditions. In the present research work, the output data from the sand monitor were gathered and analyzed in a test section of a flow loop. These data were used to generate a graph that will help to quantify the amount of sand in different flow conditions. The sand probe output data were also used to develop a semi-empirical curve that can calculate the particle impact velocity. Erosion experiments were also done with a multiphase flow loop to observe erosion rate in multiphase fluid flow. The results obtained from the sand monitor indicate that there is a direct correlation between sand probe output, sand production rate, and particle impact velocity.


Different Projects:

  • Working on a clinical study " Can Machine Generated Nicotine Yield Predict Human Nicotine Exposure from Electronic Nicotine Delivery Systems (ENDS)?
  • Working as Engineering Subject Matter Expert on a clinical study " The Effects of E-Liquid Nicotine Concentration on the Abuse Liability of ENDS in Current Users"
  • Serves as an expert scientific reviewer for the Office of the Chief Scientist (OCS) Grants Program study on "Nanotechnology Collaborative Opportunities for Research Excellence in Science" for Center for Drug Evaluation and Research (CDER)
  • Serves in the FDA Scientific Achievement Awards Committee in Excellence in Analytical Science Award category
  • Worked on high strain rate behavior of a viscoelastic material with a focus on testing and dynamic property characterization under impact loading using split Hopkinson pressure bar
  •  Worked on Effect of Different Metallic Alloys and Bone Cement (polymethyl methacrylate bone cement (PMMA) Thickness on Total Hip Prosthesis
  • Assessed mechanical properties of cement aggregate mixed with Fly Ash and Natural Fibers
  • Worked on verifying temperature gradient in a heating plate with Rohacell foam prototype (medical device) for cell culture tests for clinical trials with pharmaceuticals using CNC machine       
  • Performed research on erosion in multiphase gas/oil flow for major oil & gas companies like Shell, Chevron, BP-Amoco, Petrobras, ExxonMobil, Saudi Aramco
  • Represented Erosion Corrosion Research Center to the Joint Industrial Project Engineers in developing detailed plans, cost estimates, and specifications for construction of new research plans
  • Correlated sand probe output to sand production rate and sand particle impact velocity to quantify the number of solid particles inside a drilling rig pipeline
  • Wrote, evaluated, and presented scientific & research data on safety and effectiveness to 23 Oil/Gas companies in their advisory board meetings (ABM)
  • Documented, interpreted, synthesized, and reported experimental results in peer-reviewed scientific journals
  • Created and Maintained a database of erosion properties for several alloy materials and test cases

COURSES TAUGHT:

  • ENPM 672: Fundamentals for Thermal Systems: SP20, FA20, SP21, FA21,SP22
  • ENPM 652: Applied Finite Element Analysis: SU20, SU21
  • ENES 100: Introduction to Engineering Design: FA21,SP22
  • ME 421: HVAC Design (GMU): FA18, FA19, FA20, SP22
  • ME 499: Applied Optimization (GMU): SP19, SP20, SP21, FA21

  • W.  Akl, M. Ali, O. Aldraihem, A. Baz, Dynamic Behavior of Polyurea Composites Subjected to High Strain Rate Loading, Volume. 186, Journal of Finite Elements in Analysis and Design, p. 10351, 2021. 
  • S.A.  Shirazi, B.S.  McLaury and M.M.  Ali, Sand Monitor Evaluation in Multiphase Flow, Corrosion 2000, Paper No. 84, NACE International, USA.
  • Mohammad Ali, M., McLaury, B.S., and Shirazi, S.A., Sand Probes Evaluation for Multiphase Production Systems, Summary Report prepared for Shell.
  • Mohammad Ali, M., McLaury, B.S., and Shirazi, S.A., Progress Report/Presentation for the Joint Industry Project (JIP) on Sand Monitor Evaluations for Multiphase Production Systems, Bi-Annual Reports.
  • Reviewer, International Journal of Solids and Structures, Elsevier, https://ees.elsevier.com/ijss/
  • FELLOW: American Society of Mechanical Engineers (ASME)

Maryland Graduate Engineering Ranked #10 Public in the Nation

From extreme batteries to windows made from wood, Clark School’s trendsetting work ranks it among the country’s Top 10 public engineering schools for the 3rd consecutive year.

Three Clark School Professors Receive Competitive DURIP Grants

DURIP supports university research in technical areas of interest to the Department of Defense (DoD).

Ring Resonators Corner Light

Researchers have created the first silicon chip that can reliably constrain light to its four corners.

Two Clark School Faculty Named Finalists of Prestigious Blavatnik National Awards for Young Scientists

Hafezi and Hu are among 31 of the nation's rising stars who will compete for three Blavatnik National Awards.

Bensi, Groth Selected for Nuclear Facility Risk Assessment Faculty Development Program

The inter-department program will support junior faculty in developing solutions to advance probabilistic risk assessments.