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Publicações
Villavicencio, R. e Guedes Soares, C. (2012), “Review of material relations for marine structures collision simulations”, Maritime Engineering and Technology, Guedes Soares et al. (Eds),Taylor & Francis Group, London, pp. 381-392
The finite element method is widely used to simulate marine structures subjected to lateral impact. These simulations need to define the nonlinear material behaviour and include an appropriate failure criterion to account fracture within the structure. However, the influence of the true stress-strain relationship on the results is not presented in detail in some cases. Therefore, this paper reviews mathematical expressions for the flow curve and the failure criteria, commonly used in collision simulations. Additionally, a procedure is summarized to conduct numerical simulations of tension tests, as a practical method to evaluate the material relation and the critical failure strain of the elements. Moreover, representative simulations of marine structures under the action of impact loads are reviewed. In these references, the emphasis is put on the influence of the material relation and the failure criterion on the numerical predictions.
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