Maintenance
requirements – corrosion, fatigue, marine fouling. Failure causes – fatigue failure of structural members, deformation
failures, failure due to corrosion. Repairs to failures. Measures for
failure of structural members due to deformation, corrosion,fatigue, etc.
Prevention of marine growth and removal of marine growth both in dry and wet condition. Design considerations with regard
to maintenance. Maintenance scheduling. Welding repair
decision model. Classification requirements of hull survey, identification of defects, plates and welds. In
situ plate cutting and welding, tolerance requirements, distortion
removal. Underwater welding- dry and wet. Welding Inspection. Impact of preventive maintenance and repair
techniques on operation
