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Wed, 08 January, 2020

Student Name

Hanwei Zhou

Research Title

Fatigue initiation from small flaws in high strength thick welded shipping steels


Fatigue, threshold, crack growth, crack length, shipping


Lloyd's Register Foundation

Affiliated University

Brunel University London


Dr Yin Jin Janin and Dr Kuveshni Govender (TWI Ltd.), Dr Bin Wang (Brunel University London)

Start Date


Project Outline

The influence of small flaws on the fatigue crack growth threshold will be investigated in this project. It is hoped that via experimental effort and fracture mechanics assessments, it will be possible to demonstrate that the design life of welded structures in ships can be improved by taking into account the growth of short flaws.

The work carried out during this PhD is focusing on mechanical testing to simulate “short” cracks and establish corresponding ΔK0; engineering critical assessment (ECA) in accordance with BS 7910; and computational simulation to examine the effect of crack size on ΔK0.