My current and previous research is/was supported by
Life prediction of high-temperature structures based on hybrid-uncertainty quantification and probabilistic physics of failure modeling
Status: Active, 01/2014 - 12/2016
Sponsor: NSFC
Contract number: 11302044
Probabilistic physics of failure based structural fatigue reliability analysis
Status: Active, 12/2012 - 12/2014
Sponsor: Fundamental Research Funds for the Central Universities
Contract number: ZYGX2012J096
Life prediction of high-temperature structures based on hybrid-uncertainty quantification and probabilistic physics of failure modeling
Status: Active, 01/2014 - 12/2016
Sponsor: NSFC
Contract number: 11302044
Probabilistic physics of failure based structural fatigue reliability analysis
Status: Active, 12/2012 - 12/2014
Sponsor: Fundamental Research Funds for the Central Universities
Contract number: ZYGX2012J096
Background
The safety and reliability of engineering systems rely on the performance of structural components. High integrity materials are required for components to operate in unfavourable conditions, e.g. high temperature, high pressure, high speed, etc. The integrity and service lifetimes of structures are mainly controlled by processes such as fracture, fatigue, creep and deformation.
Probabilistic Multiscale Modeling
- Material deformation, damage and failure behavior characterized for a range of lengths scales using elastic, plastic, creep/fatigue laboratory testing.
- Fracture toughness and creep/fatigue crack initiation and growth tests.
- Strain energy and entropy based methods including uncertainty characterization techniques.
Research Objectives
- Fundamental understanding of the mechanisms of damage and their relationship to component failure.
- Influence of uncertainty on damage and crack initiation and growth.
- Multiscale models to predict failure.
- Validation of advanced models with component response under operational loading.
- Probabilistic modeling of failure mechanisms.
- Implementation of methodologies into defect assessment codes and standards.