The degree of Doctor of Philosophy (PhD) is awarded for a research study, normally over a three-year period, which makes a significant contribution to knowledge. Candidates must demonstrate that they have made an original personal contribution to the understanding of a problem in a specific field, the advancement of knowledge, or the generation of new ideas.Mechanical engineering research is embedded in two research groups Autonomous Marine Systems, Materials and Structures, and supports Coastal, Ocean and Sediment Transport.Autonomous Marine Systems (AMS) research group comprises a multidisciplinary team with expertise across artificial intelligence (AI), advanced control systems engineering theory, multi-sensor data fusion, dynamics, thermodynamics and fluids, smart materials, marine power plant, marine vehicle performance prediction, propulsors, integrated navigation systems and marine renewable energy.MAterials and STructures (MAST) research (including Civil and Structural Materials, Composites Engineering, and Structural Integrity) covers many aspects of mechanics in materials and structures. This includes structural integrity focusing on fatigue and fracture of materials, multi-scale and multi-phase modelling of materials, and structural modelling using FEA.Composites Engineering addresses fibre-reinforced polymer matrix composites with specialisations in composites manufacture, process-property-mesostructure relationships, marine composites, natural fibre reinforcements, or smart materials and intelligent structures.Full time: 2-4 years, Part time: 4-8 years