skip to main content
Idioma:
Tipo de recurso Mostra resultados com: Mostra resultados com: Índice

Experimental study of collision in scaled naval structures

Oshiro, R.E. ; Calle, M.A.G. ; Mazzariol, L.M. ; Alves, M.

International journal of impact engineering, 2017-12, Vol.110, p.149-161 [Periódico revisado por pares]

Oxford: Elsevier Ltd

Texto completo disponível

Citações Citado por
  • Título:
    Experimental study of collision in scaled naval structures
  • Autor: Oshiro, R.E. ; Calle, M.A.G. ; Mazzariol, L.M. ; Alves, M.
  • Assuntos: Collisions ; Formulations ; Impact tests ; Mathematical analysis ; Scaling ; Scaling factors ; Ship collision ; Similarity ; Strain rate ; Structural impact
  • É parte de: International journal of impact engineering, 2017-12, Vol.110, p.149-161
  • Descrição: •Experimental tests of scaled naval structures are presented.•Scaling problems that are frequent in real tests are discussed.•Modified similarity approach is used to create the model.•Many structural impact problems demand specific scaling factors. Experimental tests of the collision of reduced scale naval structures is here detailed described. First, a web girder section constructed in two different scales, 1/1 and 1/4, is subjected to the impact of a rigid indenter at mid span. The second experiment employs a more complex structure: a head-on collision of a 1/100 scaled tanker against a rigid obstacle. Special attention is given to some similarity complications that are frequent in real tests: model yielding stress different from the prototype and material strain rate. Since the standard similarity laws are unable to deal with those issues, it is shown how to modify the scaling factors to generate a replica similar to the corresponding prototype. Results are shown that support the approach with the modified scaling factors producing a behavior closer to the full-size structure. In the study of the ship head-on collision, only a 1/100 scaled specimen could be tested. In this case, the equivalent prototype was calculated with the assistance of the scaling factors and compared with empirical formulations found in the literature. The methodology depicted in this manuscript can be used as a guidance for scaled impact tests of vessels and other types of large structures.
  • Editor: Oxford: Elsevier Ltd
  • Idioma: Inglês
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.