Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A hypoplastic macroelement model for a caisson foundation in sand under monotonic and cyclic loadings
https://orcid.org/0000-0002-8978-1274
Abstract Nowadays, the numerical analysis of caisson foundations of offshore structures 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 and cyclic combined (multidirectional) loads for a caisson foundation in sand. The incremental nonlinear constitutive formulas are defined in terms of generalised forces and displacements and an enhanced function of failure surface is introduced. A series of well-documented laboratorial reduced-scale 1g model tests are adopted to validate the novel numerical tool. Results demonstrate a satisfied predictive performance of the proposed macroelement that can be used in caisson foundation design and constitutes an alternative to the traditional finite element analysis.
Highlights A novel hypoplasticity based macroelement of caisson foundation is proposed considering multidirectional loads. The incremental nonlinear constitutive formulas are defined and an enhanced function of failure surface is proposed. The novel numerical tool is validated using a series of laboratorial model tests with a satisfied predictive performance. A simple, fast and accurate numerical tool is proposed for the caisson foundation design constituting an alternative to FEA.
A hypoplastic macroelement model for a caisson foundation in sand under monotonic and cyclic loadings
https://orcid.org/0000-0002-8978-1274
Abstract Nowadays, the numerical analysis of caisson foundations of offshore structures 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 and cyclic combined (multidirectional) loads for a caisson foundation in sand. The incremental nonlinear constitutive formulas are defined in terms of generalised forces and displacements and an enhanced function of failure surface is introduced. A series of well-documented laboratorial reduced-scale 1g model tests are adopted to validate the novel numerical tool. Results demonstrate a satisfied predictive performance of the proposed macroelement that can be used in caisson foundation design and constitutes an alternative to the traditional finite element analysis.
Highlights A novel hypoplasticity based macroelement of caisson foundation is proposed considering multidirectional loads. The incremental nonlinear constitutive formulas are defined and an enhanced function of failure surface is proposed. The novel numerical tool is validated using a series of laboratorial model tests with a satisfied predictive performance. A simple, fast and accurate numerical tool is proposed for the caisson foundation design constituting an alternative to FEA.
A hypoplastic macroelement model for a caisson foundation in sand under monotonic and cyclic loadings
https://orcid.org/0000-0002-8978-1274
Abstract Nowadays, the numerical analysis of caisson foundations of offshore structures 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 and cyclic combined (multidirectional) loads for a caisson foundation in sand. The incremental nonlinear constitutive formulas are defined in terms of generalised forces and displacements and an enhanced function of failure surface is introduced. A series of well-documented laboratorial reduced-scale 1g model tests are adopted to validate the novel numerical tool. Results demonstrate a satisfied predictive performance of the proposed macroelement that can be used in caisson foundation design and constitutes an alternative to the traditional finite element analysis.
Highlights A novel hypoplasticity based macroelement of caisson foundation is proposed considering multidirectional loads. The incremental nonlinear constitutive formulas are defined and an enhanced function of failure surface is proposed. The novel numerical tool is validated using a series of laboratorial model tests with a satisfied predictive performance. A simple, fast and accurate numerical tool is proposed for the caisson foundation design constituting an alternative to FEA.
A hypoplastic macroelement model for a caisson foundation in sand under monotonic and cyclic loadings
Jin, Zhuang (Autor:in) / Yin, Zhen-Yu (Autor:in) / Kotronis, Panagiotis (Autor:in) / Li, Zheng (Autor:in) / Tamagnini, Claudio (Autor:in)
Marine Structures ; 66 ; 16-26
03.02.2019
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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