Results 101 to 110 of about 468 (145)
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Extended Subloading Surface Model
2014As was deliberated in Chapter 8, only the extended subloading surface model is capable of describing the cyclic loading behavior of materials pertinently. The explicit constitutive equation of this model is shown in this chapter. Then, this model will be applied to metals and soils, and their validities will be verified by comparisons with test data of
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Unconventional Elastoplasticity Model: Subloading Surface Model
2009Elastoplastic constitutive equations with the yield surface enclosing the elastic domain possess many limitations in the description of elastoplastic deformation, as explained in the last chapter. They are designated as the conventional model in Drucker’s (1988) classification of plasticity models.
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Cyclic Plasticity Model: Extended Subloading Surface Model
2009The subloading surface model described in Chapter 7 would be the only pertinent unconventional model for the description of monotonic loading behavior but it cannot describe the cyclic loading behavior pertinently by the formulation itself shown therein, predicting the unrealistically large plastic strain accumulation because only elastic deformation ...
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A critical state subloading surface model of sands with shear hardening
Journal of Central South University of Technology, 2008Based on the framework of critical state soil mechanics, a subloading surface plastic model for sand, being applicable to cyclic loading, was proposed. The model can be used to describe strain softening behaviour of sand under monotonic loading when the similarity-ratio equals to unity.
Shun-hua Xu, Gang Zheng, Yan Jiang
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Elastoplastic Constitutive Model with a Subloading Surface
1986While the subloading surface model seems most reasonable among a lot of elastoplastic constitutive models proposed in the past, there exists a mathematical incompleteness in the past formulations of this model. The mathematically exact formulation of this model would be provided in this paper, formulating a reasonable translation rule of the center of ...
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Extended Subloading Surface Model for Elastoplastic Deformation
1988Abstract The subloading surface model does not assume a yield surface enclosing a purely elastic domain, and instead it assumes a subloading surface which always passes through a current stress point even in the unloading state. Thus, it describes a continuous stress rate-strain rate relation and its loading criterion does not require the judgement ...
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A Corotational Elastoplastic Formulation With Subloading Surface Model for Hardening Materials
Volume 1, 2004In this paper a corotational constitutive model for the large elastoplastic deformation of hardening materials using subloading surface model is formulated. This formulation is obtained by refining the large deformation theory of Naghdabadi and Saidi (2002) adopting the corotational logarithmic (Hencky) strain rate tensor and incorporating it into the ...
Ali Reza Saidi, Koichi Hashiguchi
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Elasto-Plastic Constitutive Model for Unsaturated Soils with Subloading Surface Concept
2013An elasto-plastic constitutive model for unsaturated soils is improved to realize numerical stability of computations at the singular point on the yield surface and an accurate prediction of the mechanical behavior of overconsolidated (or elastic state) soils in this chapter.
Shintaro Ohno +5 more
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The biofilm life cycle: expanding the conceptual model of biofilm formation
Nature Reviews Microbiology, 2022Karin Sauer +2 more
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