The 100 m Composite Ship?

Michael John Lowde,Ruadan Geraghty,Jasper Graham-Jones,Richard Pemberton,Henry George Arthur Peters,John Summerscales

doi:10.3390/jmse10030408

Abstract

Fibre-reinforced polymer (FRP) matrix composites are widely used in large marine structures, and in wind turbines where blade lengths are now over 100 m. Composites are the material of choice for small vessels due to ease of manufacture, high hull girder stiffness, buckling resistance, corrosion resistance and underwater shock resistance. Ships over 100 m are still built using traditional steel and/or aluminium, but so far not FRP. Composite ship lengths have increased over the past 50 years, but fundamental technical challenges remain for the 100 m composite ship. Preliminary studies suggest a possible 30% saving in structural weight, a 7–21% reduction in full load displacement, and a cost saving of 15%. However, economic considerations, design codes, manufacturing limits, safety and end of life scenarios need to be addressed before a 100 m ship is built. Innovative materials and structures, notably carbon fibre composite skinned sandwich construction, or aramid fibres with vinylester modified epoxy resin, should result in increased mechanical performance and consequent improvements in economics and manufacturing processes. A linear extrapolation of length vs. launch dates predicts the first 100 m ship would be launched in 2042.

Highlights

Fibre-reinforced polymer (FRP) matrix composites are widely used in the marine environment [1–4]
A US Navy feasibility study for composite construction of their generation corvettes concluded that for a 1200 t 85 m ship there could be a 30% saving in structural weight, a 7–21% reduction in full load displacement, and a cost saving of 15% relative to the equivalent steel vessel [21]
The Indonesian Navy produced a 219 t 63 m Fast Missile Patrol Vessel (FMPV) with a wave piercing trimaran design and helicopter platform constructed as a carbon fibre composite sandwich with vinylester modified epoxy resin matrix using a resin infusion process [24]

Summary

Introduction

Fibre-reinforced polymer (FRP) matrix composites are widely used in the marine environment [1–4]. The Swedish Navy 650 t (fully equipped) 73 m long Visby class stealth corvettes used hybrid carbon/glass fabric reinforced rubber modified vinylester skinned PVC core sandwich construction. A US Navy feasibility study for composite construction of their generation corvettes concluded that for a 1200 t 85 m ship there could be a 30% saving in structural weight, a 7–21% reduction in full load displacement, and a cost saving of 15% relative to the equivalent steel vessel [21]. The Indonesian Navy produced a 219 t 63 m Fast Missile Patrol Vessel (FMPV) with a wave piercing trimaran design and helicopter platform constructed as a carbon fibre composite sandwich with vinylester modified epoxy resin matrix using a resin infusion process [24]. Labour-intensive manufacturing procombination lackenvironmentally of empirical performance cesses in combination with a lack of empirical performance data

Economic

Design Codes and Considerations

Manufacturing Considerations

Launch Date for a 100 m Ship?

Findings

Design of of Marine