Constitutive modeling of cyclic seabed behavior around coastal and offshore structures: Two robust models and their predicting capabilities

Mehmet Barış Can Ülker*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Geotechnical considerations are important in identifying the conditions leading to instability of seabed-offshore-structures under waves. It is necessary to model such soil behavior via theoretical frameworks. This paper summarizes the fundamentals of constitutive modeling of cyclic seabed behavior. Two main theories namely, bounding surface plasticity and generalized plasticity theory are introduced for both granular and cohesive soils. Modeling considerations to evaluate the elasto-plastic soil response in terms of governing equations of elemental behavior are presented. Finally, verification of theoretical results through classical tests is presented to demonstrate the accuracy of constitutive modeling of cyclic behavior of seabed around coastal structures.

Original languageEnglish
Title of host publicationProceedings of the 29th International Ocean and Polar Engineering Conference, ISOPE 2019
EditorsJin S. Chung, Odd M. Akselsen, HyunWoo Jin, Hiroyasu Kawai, Yongwon Lee, Dmitri Matskevitch, Suak Ho Van, Decheng Wan, Alan M. Wang, Satoru Yamaguchi
PublisherInternational Society of Offshore and Polar Engineers
Pages2268-2275
Number of pages8
ISBN (Print)9781880653852
Publication statusPublished - 2019
Event29th International Ocean and Polar Engineering Conference, ISOPE 2019 - Honolulu, United States
Duration: 16 Jun 201921 Jun 2019

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference29th International Ocean and Polar Engineering Conference, ISOPE 2019
Country/TerritoryUnited States
CityHonolulu
Period16/06/1921/06/19

Bibliographical note

Publisher Copyright:
© 2019 by the International Society of Offshore and Polar Engineers (ISOPE).

Funding

Part of this study has been carried out with the support of EU Marie Curie-Career Integration Grant namely project DRISCS # 333831. Support of the EU is highly appreciated.

FundersFunder number
European Commission333831

    Keywords

    • Bounding surface plasticity
    • Coastal structures
    • Constitutive modeling
    • Cyclic behavior
    • Generalized plasticity
    • Liquefaction
    • Seabed

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