Browsing Mechanical Engineering (Scholarly Articles) by Author "Li, Ming"
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Cyclic plasticity of welded P91 material for simple and complex power plant connections
Li, Ming; Barrett, Richard A.; Scully, Stephen; Harrison, Noel M.; Leen, Sean B.; O’Donoghue, Padraic E. (Elsevier, 2016-02-10)This paper focuses on with the cyclic plasticity modelling of welded, ex-service P91 material. A multi material model is developed for high temperature cyclic plasticity, including the effects of the three different material ... -
Influence of material inhomogeneity on the mechanical response of a tempered martensite steel
Li, Ming; Sun, F. W.; Barrett, Richard A.; Meade, E.; Li, D. F.; O'Donoghue, Padraic E.; Leen, Sean B.; O'Dowd, Noel P. (SAGE Publications, 2017-01-13)Failure in steel weldments operating at high temperatures often occurs in the heat-affected zone adjacent to the weld. Such failures can be a result of material inhomogeneity within the heat-affected zone and in the case ... -
Microstructure modeling of high-temperature microcrack initiation and evolution in a welded 9Cr martensitic steel
Li, Ming; O'Donoghue, Padraic E.; Leen, Sean B. (SAGE Publications, 2019-02-28)Welded joints in tempered 9Cr-1Mo operating at elevated temperatures are well known to be prone to premature failure due to cracking in the heat-affected zone. This paper describes a crystal plasticity model to predict the ...