A hybrid plastic flow rule for cyclically loaded clay

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The strength loss of clays subjected to seismic loading is a crucial factor promoting slope instability. This paper proposes a constitutive modeling strategy to simulate accurately the development of pore pressure in cyclically loaded clays, i.e. one major factor responsible for strength deterioration during earthquakes. For this purpose, an enhanced plastic flow rule is proposed within the bounding surface framework to represent the cyclic behavior of reconstituted and/or weakly structured clays. The verification of the model against experimental evidence shows that the proposed flow rule improves the accuracy with which sign and magnitude of the pore pressure increments are computed.

Original languageEnglish (US)
Pages (from-to)65-79
Number of pages15
JournalComputers and Geotechnics
Volume101
DOIs
StatePublished - Sep 1 2018

Fingerprint

plastic flow
Plastic flow
Clay
Pore pressure
clay
pore pressure
Deterioration
Earthquakes
earthquake
modeling

Keywords

  • Clay
  • Constitutive model
  • Cyclic loading
  • Plastic flow rule

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Computer Science Applications

Cite this

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title = "A hybrid plastic flow rule for cyclically loaded clay",
abstract = "The strength loss of clays subjected to seismic loading is a crucial factor promoting slope instability. This paper proposes a constitutive modeling strategy to simulate accurately the development of pore pressure in cyclically loaded clays, i.e. one major factor responsible for strength deterioration during earthquakes. For this purpose, an enhanced plastic flow rule is proposed within the bounding surface framework to represent the cyclic behavior of reconstituted and/or weakly structured clays. The verification of the model against experimental evidence shows that the proposed flow rule improves the accuracy with which sign and magnitude of the pore pressure increments are computed.",
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A hybrid plastic flow rule for cyclically loaded clay. / Shi, Zhenhao; Finno, Richard J; Buscarnera, Giuseppe.

In: Computers and Geotechnics, Vol. 101, 01.09.2018, p. 65-79.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A hybrid plastic flow rule for cyclically loaded clay

AU - Shi, Zhenhao

AU - Finno, Richard J

AU - Buscarnera, Giuseppe

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AB - The strength loss of clays subjected to seismic loading is a crucial factor promoting slope instability. This paper proposes a constitutive modeling strategy to simulate accurately the development of pore pressure in cyclically loaded clays, i.e. one major factor responsible for strength deterioration during earthquakes. For this purpose, an enhanced plastic flow rule is proposed within the bounding surface framework to represent the cyclic behavior of reconstituted and/or weakly structured clays. The verification of the model against experimental evidence shows that the proposed flow rule improves the accuracy with which sign and magnitude of the pore pressure increments are computed.

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