Development of Leading Body Structure Made of Composite Material

The composition of recently manufactured commuter trains and other rolling stock is mainly stainless steel. Fiber reinforced plastic (FRP) generally is used to construct the face of the rail car ("front cover"). Significant man hours are required to manufacture the front of the car, including installation of front FRP. Such labor requirements have been a stumbling block in JR East's efforts to reduce construction time in new stainless steel car design and manufacture and major intermediate car modification (i.e. modifying a car to include a driver's cab). Time requirements are due to overall low rigidity of front FRP, requiring front FRP to be held on the car "gently". The number of required construction man hours will be substantially reduced if overall front FRP rigidity can be improved. JR East studied FRP sandwich structure against this backdrop in its efforts to improve front FRP rigidity. JR East then used test pieces to perform the properties test, thereby selecting optimum front FRP material. JR East developed the reinforced frame easily installed on both car body and car front cover after considering crossing collision and including FRP sandwich structure front cover use. Distributed load and impact load tests were conducted, assuming that the actual car using this prototype would be used in quantitative strength evaluation performance.

Language

  • English

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Filing Info

  • Accession Number: 01342354
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 21 2011 12:00PM