Abstract
Developing reliable and versatile constitutive models for geomaterials has been challenging tasks for nonlinear finite element analysis of geotechnical engineering systems. the fuzzy set plasticity theory has been developed to account for the nonlinear soil stress-strain response under complex stress paths. the theory in many ways resembles the bounding surface plasticity, where the plastic modulus is a function of the distance between the current and image stress states in the stress space. based on the concept of fuzzy set theory in mathematics, a membership function whose value ranges from 1 and 0 is introduced in the Fuzzy Set Plasticity Theory to specify the plastic modulus at a given stress state. in this paper, the laboratory test results of hollow cylinder tests on Hoston sand from the CASE data base were selected to assess the fuzzy set plasticity model by simulating the sand behaviors under those complex stress paths. © 2011 ASCE.
Recommended Citation
C. Chen and L. Ge, "Modeling Unbound Granular Materials under Complex Stress Paths," Geotechnical Special Publication, no. 222 GSP, pp. 242 - 247, American Society of Civil Engineers, Dec 2011.
The definitive version is available at https://doi.org/10.1061/47633(412)32
Department(s)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Constitutive models; Geomaterials; Granular media; Stress
International Standard Book Number (ISBN)
978-078447633-8
International Standard Serial Number (ISSN)
0895-0563
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Society of Civil Engineers, All rights reserved.
Publication Date
01 Dec 2011
