Numerical simulations are presented, on the dynamic response of a one-tenth scaled tanker double hull structure struck laterally by a knife edge indenter. The small stiffeners of the full-scale prototype are smeared in the small-scale model by increasing the thicknesses of the corresponding plates. The dynamic response is evaluated at an impact velocity of 7.22 m/s and the impact point is chosen between two frames to assure damage to the outer shell plating and stringers. The simulations are performed by LS-DYNA finite element solver. They aim at evaluating the influence of strain hardening and strain rate hardening on the global impact response of the structure, following different models proposed in the literature. Moreover, the numerical model is scaled to its full-scale prototype, summarizing the governing scaling laws for collision analysis and evaluating the effect of the material strain rate on the plastic response of large scaled numerical models.
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ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
July 1–6, 2012
Rio de Janeiro, Brazil
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4489-2
PROCEEDINGS PAPER
Numerical Investigation on the Plastic Response of a Small-Scale Laterally Impacted Tanker Double Hull Structure Available to Purchase
Richard Villavicencio,
Richard Villavicencio
Technical University of Lisbon, Lisboa, Portugal
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Young-Hun Kim,
Young-Hun Kim
Sungdong Shipbuilding & Marine Engineering, Tongyeong, South Korea
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Sang-Rai Cho,
Sang-Rai Cho
University of Ulsan, Ulsan, South Korea
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C. Guedes Soares
C. Guedes Soares
Technical University of Lisbon, Lisboa, Portugal
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Richard Villavicencio
Technical University of Lisbon, Lisboa, Portugal
Young-Hun Kim
Sungdong Shipbuilding & Marine Engineering, Tongyeong, South Korea
Sang-Rai Cho
University of Ulsan, Ulsan, South Korea
C. Guedes Soares
Technical University of Lisbon, Lisboa, Portugal
Paper No:
OMAE2012-84016, pp. 613-620; 8 pages
Published Online:
August 23, 2013
Citation
Villavicencio, R, Kim, Y, Cho, S, & Soares, CG. "Numerical Investigation on the Plastic Response of a Small-Scale Laterally Impacted Tanker Double Hull Structure." Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. Volume 2: Structures, Safety and Reliability. Rio de Janeiro, Brazil. July 1–6, 2012. pp. 613-620. ASME. https://doi.org/10.1115/OMAE2012-84016
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