@article{1201ca2b6f58436787e78b4b0af39abd,
title = "Numerical modeling of soil–pipe interaction of single pipeline at shallow embedment in clay by hypoplastic macroelement",
abstract = "Nowadays, the numerical analysis of submarine pipelines of offshore oil and gas industry is a big challenge in engineering design. A simple, fast and accurate numerical tool is proposed in this article based on the macroelement concept. The novel macroelement is within the framework of hypoplasticity and can consider static monotonic combined (multi-directional) loads for shallow embedded pipelines in clay. The incremental nonlinear constitutive formulas are defined in terms of generalized forces and displacements and an enhanced function of failure surface is introduced. A series of empirical formulas are proposed to describe the stiffness variation trends for soil–pipeline interaction. Model predictions show that the proposed macroelement is proved to be an efficient alternative approach compared to the traditional finite element analysis. The computational cost is thus much reduced for the pipeline design.",
keywords = "Clay, Hypoplasticity, Macroelement, Offshore engineering, Pipeline, Soil-pipeline interaction",
author = "Zhuang Jin and Zheng Li and Yin, {Zhen yu} and Panagiotis Kotronis",
note = "Funding Information: The financial support from PULSAR project (NO. 2019_09027) of la R?gion des Pays de la Loire is greatly acknowledged. The third author would like to thank the support of the Research Grants Council (RGC) of Hong Kong Special Administrative Region Government (HKSARG) of China (Grant No.: N_PolyU534/20). The last author would like to acknowledge the invaluable help of Prof. C. Tamagnini and their successful collaboration on hypoplastic macroelement modeling for many years. The numerical simulations in this paper are supported by Center for Computational Science and Engineering (CCSE) at Southern University of Science and Technology (SUSTech). The first corresponding author would acknowledge special thanks to Ms. Xuejiao Tang for her help. Funding Information: The financial support from PULSAR project (NO. 2019_09027 ) of la R{\'e}gion des Pays de la Loire is greatly acknowledged. The third author would like to thank the support of the Research Grants Council (RGC) of Hong Kong Special Administrative Region Government (HKSARG) of China (Grant No. : N_PolyU534/20 ). The last author would like to acknowledge the invaluable help of Prof. C. Tamagnini and their successful collaboration on hypoplastic macroelement modeling for many years. The numerical simulations in this paper are supported by Center for Computational Science and Engineering (CCSE) at Southern University of Science and Technology (SUSTech). The first corresponding author would acknowledge special thanks to Ms. Xuejiao Tang for her help. Publisher Copyright: {\textcopyright} 2021",
year = "2021",
month = dec,
day = "1",
doi = "10.1016/j.oceaneng.2021.110017",
language = "English",
volume = "241",
journal = "Ocean Engineering",
issn = "0029-8018",
publisher = "Elsevier BV",
}