Clark School Home UMD


Current Research Domains

  • Hybrid Systems Reliability (Systems of Hardware, Software and Human)
  • Probabilistic Physics of Failure of Mechanical Systems
  • Simulation-based Probabilistic Risk Assessment
  • Bayesian Data Analysis and Predictive Models
  • Uncertainty Characterization and Assessment
  • Human Reliability and Socio-technical Systems Risk
  • Software Reliability and Information Security
  • Microelectronics Reliability
  • Prognostics and Health Monitoring of Complex Systems
  • Healthcare Systems Risk Management and Medical Device Reliability
  • Risk Based Design

Research Projects

Examples of Current Research Projects

  1. An Acoustic Emission Approach to Assess Remaining Useful Life of Aging Structures Under Fatigue Loading, ONR (PI: Mohammad Modarres)
  2. Development of a Generalized Entropic Framework for Damage Assessment, ONR (PI: Mohammad Modarres)
  3. Study of the Implications of Multi-Unit Accidents in the Context of NRC's Quantitative Health Objectives, U.S. Nuclear Regulatory Commission (PI: Mohammad Modarres)
  4. Cause - Defense Approach to Common Cause Failure Probability Estimation for PRA and Event Assessment, U.S. Nuclear Regulatory Commission (PI: Ali Mosleh)
  5. Common Cause Failure Analysis Methodology Review and Evaluation, ManTech International Corporation (PI: Ali Mosleh)
  6. Advanced Modeling Techniques for Level 2/3 PRA, Sandia National, Laboratories (PI: Ali Mosleh)  
  7. Feasibility and Demonstration of Bayesian Data Interpretation and Analysis, ManTech International, NASA Goddard Space Flight Center  (PI: Ali Mosleh)
  8. Model-based Human Reliability Analysis, U.S. Nuclear Regulatory Commission, (PI: Ali Mosleh)
  9. Task Decomposition Method in Developing HRA Data Bases, DOE - Idaho National Laboratory (PI: Ali Mosleh)
  10. Risk-Based Path Planning Optimization for UAV Operations over Inhabited Areas, NAWC-AD (PIs: Herrmann and Azarm)
  11. Engineering Cyber-Physical Security Systems, NIST (PIs: Herrmann and Schmidt)

Top of page

Examples of Past Research Projects

Title of Project Source
System-wide Risk & Reliability Assessment for Civil Works Infrastructure Army Corp of Engineers
Mission Assurance Partnership (Task Order w/Cap, Lead: ARES Corp.) NASA GSFC
Science Based HRA INL
Cause Based CCF Methodology NRC
Model-Based Human Reliability Analysis NRC
RIAC-Partnership (Task Order) DOD
Level 2 Dynamic PRA Sandia Lab
Feasibility of Bayesian Methods for Space Flight Mission Assurance Data NASA GSFC
Probabilistic Models for Pipe Failure Rates in NPPs ScanPower
Performance Shaping Factors Classification INL
Probabilistic Physics of Failure Analysis of Li Battery State of MD MIPS
Methodology for Incorporating Physics of Failure and Human Error into PRA Petrobras and Fed Univ of Brazil
Technical Assessment of CATS Aviation Risk Methodology Netherlands Government
Use of Best Estimate and Probabilistic Assessment Tech NRC
Development of an Integrated Framework for the Risk Analysis FAA
Hazard Analysis Methodology DOT-FAA
Nuclear Engineering Graduate Education Enhancement NRC
Methodology for Software Systems Reliability Analysis Cognitive Concepts LLC
Algorithmic Enhancement of QRAS Code Item Software
RIAC Course: Advanced Methods or Reliability Analysis Wyle Laboratories
NAVAIR Reliability and Maintainability Engineering Systems Engineering Mantech Corp
Reliability Growth Prediction NAVAIR/ManTech
Reliability Analysis Infrastructure and Case Studies-Software and Training Emerson Copeland Corporation
Reliability Analysis Infrastructure and Case Studies Emerson Copeland Corporation
NAVAIR Reliability and Maintainability Engineering Course Mantech Systems Engineering
Exploring Possible Enhancements to HERA Data Base INL
PRA Methodology and QRAS Enhancement Project NASA GSFC
Hazard Analysis Methodology DOT-FAA
Probabilistic Assessment and Applications NRC
Risk and Reliability Tasks under Space Vehicle Technology Institute NASA-DOD
QRAS Software Review Item Software Inc.
Use of Best Estimate and  Probabilistic Assessment Tech NRC
Model-Based Hazard Analysis and Simulation for Space Missions NASA Ames
NAVAIR RAMS Support Partnership (Task Order, Lead: ManTech International) NAVAIR/ManTech
Collaborative Research on PRA Methods NRC
Systems Approach to Automotive Reliability Ford Grant
Space Shuttle Risk Assessment NASA
Bayesian Reliability Prediction System for Automotive Applications Ford
Development of CCF Data  and Methods INL
Modeling Organizational Factors in PRA NRC
Medical Systems Reliability GE Medical
Airport Security Risk Methods Evaluation FAA
Co-PI NASA Dynamic PRA (Grant) NASA
Cassini Space Mission Risk Analysis Lockheed Matrin
Methodology for Analysis of Information Systems Security Risk NIST
Risk and Reliability Tasks under Space Vehicle Technology Institute NASA-DOD
QRAS Software Review Item Software Inc.
TOPAZ Space Reactor Risk Assessment MIPS
Bayesian Modeling for Quality and Maturity of  Software Processes and Products TI
Modeling Operator Errors of Commission in Dynamic Accident Sequence Analysis EPRI
Analysis of Reactor Operating Events Involving Human Error INL
Use of Accident Precursor Data to Improve PRA Models and Results NRC
Methods for Use of Accident Precursor Data to Estimate Rare Event Frequencies NSF
Consideration of Plant Specific Characteristics in Estimation of Common Cause Failure Rates NRC
Research on Safety Performance Indicators NRC
Integrated Dependent Failure Analysis SNL
Validation of Conceptual Framework for Computer Security Risk Management NIST
Methodology for Time Dependent Accident Analysis for Space Systems MMARF
Study of Effectiveness of Defensive Strategies Against Common Cause Failures GRB
Classification of Independent Component Failure Events      PLG
INPO Fellowship for Nuclear Eng. INPO
Unrestricted Grant Baker Hughes Inc.
Expert System Development Software (G2) for research G3

Top of page