Project Status: Completed

Probabilistic life prediction of composite laminates

Developed a probabilistic fatigue life prediction framework for multi-directional composite laminates, which enables fatigue-resistant design and maintenance decision-making. The numerical simulation results were validated with experimental observations.

Project Status: Completed

Residual stress and its effects on fatigue failure of spot-weld joint

Developed a general methodology to combine electro-thermal-structural finite element simulation, design of experiments, response surface method, random field expansion and Monte Carlo technique to simulate the residual stress during the manufacturing process. The results were […]

Project Status: Completed

Stochastic multiaxial fatigue and fracture modeling (Ph.D. dissertation)

Research combines fatigue theory, fracture mechanics, finite element analysis, and probabilistic methods to develop a general methodology for the fatigue reliability assessment of rotating mechanical components. Both the crack initiation and propagation under low-cycle and […]

Project Status: Completed

Advanced modeling capabilities for railroad wheel failure analysis

The project combines structural failure analysis, finite element methods, and fracture mechanics to develop a methodology to analyze and simulate railroad wheel failure. Experimental tests are performed to quantify initial defects in the wheel material. […]

Project Status: Completed

Self-healing of fatigue damage in metallic materials

This project proposes an innovative and fundamentally different fatigue damage mitigation methodology based on the self-healing mechanism. Detailed mechanism modeling, numerical methods, state-of-the-art experimental techniques, and advanced material synthesis are integrated together for system development […]

Project Status: Completed

IRES in China – Advanced Materials for a Sustainable Development

This award is a grant in response to Program Solicitation, International Research Experiences for Students (IRES). The research topic of this program is the development of advanced materials for applications in energy generation and storage […]

Project Status: Completed

Rotorcraft damage tolerance risk assessment and management

The project aims support FAA rulemaking and the implementation of rotorcraft damage tolerance requirements. It combines uncertainty quantification and propagation analysis, multi-scale fatigue and fracture modeling, risk assessment and reliability-based inspection and maintenance scheduling to […]