Hadi Mohammadi

Assistant Professor

Mechanical

Office: EME4209
Phone: 250.807.9920
Email: hadi.mohammadi@ubc.ca

Graduate student supervisor

Research Summary

Major: Prosthetic Heart Valves!

Mechanical Engineering:
Theory of Elasticity
Nonlinear Solid Mechanics
Multiscale Modeling

Biomedical Engineering:
Cardiovascular Engineering and Technology
Atherosclerosis
Articular Cartilage Mechanobiology and Osteoarthritis
Cellular and Molecular Biomechanics
Mechanical Vibrations on Human Performance

Courses & Teaching

Dynamics, APSC 181;
Mechanical Vibrations, ENGR 387;
Biomed Engineering, ENGR 482;
Tissue Mechanics, ENGR 598;
Computational Biomechanics;
Finite Element Methods (grad and undergrad), ENGR 492, ENGR 582

Biography

Dr. Mohammadi is a mechanical (biomedical) engineer with hands-on experience in the design of many engineering structures and medical devices through various projects that he has been involved in over the past few years. He is an industry innovator having created the technology to produce lifelike synthetic platforms that can be used for the simulation of almost all cardiovascular reconstructive surgeries. Among his other scientific activities, analysis and optimization of engineering structures (pipelines, containers, tanks, pressure vessels), artificial lift technology (mechanical problems in oil recovery industry), vibration in mechanical systems and dynamic analysis (collapse load), optimization of frames, shell, and inflatable structures (rigs, cranes, elevators), and fatigue and fracture analysis, are noticeable. He worked for a few years as a consultant, research engineer and team leader for a variety of companies. In his last industrial position prior to joining UBC, he served as a technical advisor at Trican Well Service LTD working on unconventional sources of energy. He’s been heavily involved in the design and development of cardiovascular devices and technology for the past 10 years. He is a member of the association of professional engineers in the provinces of Alberta and BC.

His motto for life is easy:

Learn mathematics and coding for no reason, be honest, stay with your problems longer, be intuitive, and always learn the rules and play better.

Websites

UBC Website: The Heart Valve Performance Laboratory (HVPL)

Facebook: The Heart Valve Performance Laboratory (HVPL)

Degrees

PDF - Harvard Medical School and University of Calgary
PhD - Biomaterials (University of Western Ontario)
PhD - Mechanical Engineering (Sharif University of Technology, 3rd year)
MSc - Mechanical Engineering (Sharif University of Technology, Tehran, Iran)
BSc - Mechanical Engineering (Sharif University of Technology, Tehran, Iran)

Research Interests & Projects

The active projects at the Heart Valve Performance Laboratory (HVPL) are as follows:

The Next Generation of Prosthetic Heart Valves

Percutaneous heart valves for the aortic and mitral positions
Application of soft robotic to the construction of prosthetic polymer heart valves for the aortic position
Bileaflet mechanical heart valves

Atherosclerosis: assessment of atherosclerotic plaque composition during progression in vivo using optical techniques

Orthotics: The next generation of shoe insoles using cryogel biomaterials

Parkinson’s disease: Design and development of a novel passive hand tremor attenuator

Researchers from UBC’s Okanagan campus have developed a new advanced mechanical heart valve that could have a major impact on the way cardiovascular surgeries are performed.

“This new valve design addresses some of the shortcomings of the existing solutions by providing more (blood) circulation through the heart by virtue of its innovative design,” said Hadi Mohammadi, a biomedical engineering professor at UBCO.

He said there had been few innovative approaches taken for many years and believes the synthetic heart valve could be a game changer for both surgeons and patients alike.

Guy Fradet, head of cardiovascular surgery at Kelowna General Hospital and a partner on the research, said the new valve has the potential to replace two existing valve designs that have been used since 1977 and 1994.

The two researchers concede that significant additional development and testing are required before the valve is made available to doctors, but they are excited about the next steps.

“If our designs and hypothesis hold up to further testing, this new valve design could replace all existing heart valves, both mechanical and bioprosthetic,” said Mohammadi. “It could revolutionize cardiovascular surgery.”

For more information please contact Dylan Goode (Lab Manager) at dylangoode1993@gmail.com

Graduate Students:

Stephen Kimanzi, PhD Student (Research Area: Parkinson)
Peyman Yousefi, PhD Student (Research Area: Stochastic Theory)
Mostafa Irannejad, PhD@Sharif University of Technology (Research Area: Spine BioMechanics)
Luke Ohlmann, MASc Student (Research Area: Soft Robotic)
Arpin Bhullar, MASc Student (Research Area: Mechanical Valves)
Dylan Goode, MASc Student (Research Area: Transcatheter Valves)
Ramsey Katul, MASc Student (Research Area: Atherosclerosis)
Emre Kermen, MASc Student (Research Area: Orthotics)

Alumni:

Mehdi Masoumi (MASc Student) (Research Area: Parkinson)
Mehrdad Zareh (MASc Student) (Research Area: Atherosclerosis)
Nivedita Mahesh (MASc Student) (Research Area: Orthopedics)
Mehdi Jahandardoost (PhD Student) (Research Area: Mechanical Valves)
Dr. Fatemeh Alavi (Postdoctoral) (Research Area: Spine BioMechanics)
Dr. Raghad Mimar (Postdoctoral) (Research Area: Orthotics)
Dr. Azedeh Hashemi (Postdoctoral) (Research Area: Cartilage Biomaterials)

Selected Publications & Presentations

Mohammadi H. (2015). Fatigue crack propagation in Gas Transmission Pipelines: A computational Study, Journal of Pipeline Engineering, Accepted, JPE14-06R1
Jahandardoost M, Fradet G, Mohammadi H. (2016). Hemodynamic study of the elliptic St. Jude medical valve; A computational study. Journal of Engineering in Medicine, 230(2) 85–96.
Jahandardoost M, Fradet G, Mohammadi H. (2016). Effect of Heart Rate in the Hemodynamics of Bileaflet Mechanical Heart Valve Prostheses In the Opening Phase, Journal of Medicine in Engineering, 230(2) 1–16.
Raustin R, Mohammadi H. (2015). Towards Multiscale Modeling of Wave Propagation in Arteries, Journal of Mechanics in Medicine and Biology, 16(2); 1650027(1-10)
Glover K, Naser GH, Mohammadi H. (2015). Creep Deformation of Fracture Surfaces Analysis in a Hydraulically Fractured Reservoir Using the Finite Element Method, Journal of Petroleum and Gas Engineering, 6(6); 62-73
Zareh M, Fradet G, Naser B, Mohammadi H. (2015). Are Two-Dimensional Images Sufficient to Assess The Atherosclerotic Plaque Vulnerability? – A Viscoelastic and Anisotropic Finite Element Model. Journal of Cardiovascular system, 3(3);1-11
Mohammadi H, Jahandardoost M, Fradet G. (2015). Elliptic St. Jude Bileaflet Mechanical Heart Valves. Journal of Cardiovascular System, 3(1); 1-8
Jahandardoost M, Fradet G, Mohammadi H. (2015). A Novel Computational Model on the Hemodynamics of the Bileaflet Mechanical Heart Valves, Journal of Engineering in Medicine, 229(3);232-244
Shakibi B, Mimar R, Shakibi V, Mohammadi H. (2014). The Effects of Foot Type and Heritability on Balance and Plantar Pressure Distribution of Female Twins, Journal of Sports Medicine and Physical Fitness, PMID:25394475
Bahramian F, Mohammadi H. (2015). Modeling Blood Flow in an Eccentric Stenosed Artery Using Large Eddy Simulation and Parallel computing, Journal of Mechanics in Medicine and Biology, (15)5;1550086 (1-12)
Hashemi A, Mequanint K, Mohammadi H. (2014). Applications of Blends and Nanocomposite Biomaterials for Articular Cartilage Tissue Engineering, Journal of Materials, Materials 7 (7); 5327-5355
Bahramian F, Mohammadi H. (2014). A Novel Periodic Boundary Condition for Computational Hemodynamic Studies, Journal of Engineering in Medicine, 228(7); 643-65
Mohammadi H., Mequanint, K. (2014). Effect of Stress Intensity Factor in Evaluation of Instability of Atherosclerotic Plaque, Journal of Mechanics in Medicine and Biology, (14)5; 1450072 (1-15).
Mohammadi H., Mequanint, K. Herzog W. (2013). Micro-Finite Element Modeling of Wrinkle Formation for Cell Locomotion Applications, Journal of Mechanics in Medicine and Biology, 13(1); 1350019 (1-13)
*Mohammadi H., Mequanint, K. Herzog, W. (2013). Computational Aspects of Mechanical Modeling of Articular Cartilage, Journal of Engineering in Medicine, 227(4); 402-420. (Among the top most downloaded articles in 2014)

Additional Publications

Selected Grants & Awards

University of British Columbia
NSERC – Discovery Grant Program
NSERC – ENGAGE Program
Mitacs Accelerate Program

Media

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