Effect of weld modelling on crashworthiness optimization
Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › › vertaisarvioitu
Tutkijat
Organisaatiot
- Tallinn University of Technology
Kuvaus
Design of ship structures that can absorb more energy during accidental loading scenarios without rupture contribute to the safety at sea. Therefore, innovative structural solutions have been sought for and implemented in practice, which have better crashworthiness properties compared with traditional stiffened panels. The enhanced characteristics are achieved through structural topology changes that lead to better energy absorption characteristics. To find the topologies with the best characteristics, optimization algorithms are commonly used. In this paper, we explore how these “best” designs are affected by the assumption made in modelling the structural joints such as welds and heat-affected zone. Web-core steel sandwich panels are optimized for maximum Energy per Mass (E/M) ratio until fixed penetration depth. Two alternative modelling techniques are compared, one where welds are considered and the other without welds. The differences in response and resulting best designs are discussed and presented.
Yksityiskohdat
Alkuperäiskieli | Englanti |
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Otsikko | Trends in the Analysis and Design of Marine Structures: Proceedings of the 7th International Conference on Marine Structures (MARSTRUCT 2019, Dubrovnik, Croatia, 6-8 May 2019) |
Toimittajat | C. Guedes Soares, J. Parunov |
Tila | Julkaistu - 16 toukokuuta 2019 |
OKM-julkaisutyyppi | A4 Artikkeli konferenssijulkaisuussa |
Tapahtuma | International Conference on Marine Structures - Dubrovnik, Kroatia Kesto: 6 toukokuuta 2019 → 8 toukokuuta 2019 Konferenssinumero: 7 |
Julkaisusarja
Nimi | Trends in the Analysis and Design of Marine Structures - Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019 |
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Conference
Conference | International Conference on Marine Structures |
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Lyhennettä | MARSTRUCT |
Maa | Kroatia |
Kaupunki | Dubrovnik |
Ajanjakso | 06/05/2019 → 08/05/2019 |
ID: 33868116