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Smoothing of yield surfaces and a reformulation of multi-surface plasticity [PDF]
, 2011 In this work we describe a procedure for the smoothing of non-regular yield surfaces and plastic potential functions. We also present several application examples corresponding to different well-known cases. Moreover, we show that a multi-surface plasticity model can be reduced to a model with a single yield surface by using the same smoothing ...
Gesto Beiroa, José Manuel +2 more
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MetalsThe anisotropic mechanical behaviour of multi-phase TiAl alloys is intrinsically governed by the anisotropic crystal properties and morphology of their constituent phases, which control the initiation of local plasticity.
Mohammad Rizviul Kabir +1 more
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Yantu gongcheng xuebao, 2022 Multi-block sliding is a common and important failure mode in arch dam abutment. The current stability analysis methods established generally have certain deficiencies: a lot of assumptions must be introduced to make the problem static, or some methods ...
SUN Ping, ZHANG Qiang, , CHEN Zu-yu, WANG Yu-jie
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International Journal for Numerical Methods in Engineering, 2023 AbstractIn this study, a new traction‐separation based constitutive model for use in finite element simulation of masonry joints under complex loading conditions is developed for cohesive elements. The proposed model is formulated using damage parameters and plastic deformation with mutual couplings, and can accurately simulate the complex nonlinear ...
Yu Nie +3 more
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Micromechanics-based constitutive relations for post-localization analysis
MethodsX, 2018 Micromechanics-based constitutive relations for post-localization analysis are obtained, to be used in a multi-surface representation of porous metal plasticity. Each yield surface involves a number of internal parameters.
Mohammad E. Torki, A. Amine Benzerga
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Yantu gongcheng xuebao, 2023 The mathematical programming approach of elastoplastic incremental analysis is one of the effective ways to analyze deformation and strength problems in geotechnical engineering and has unique advantages in dealing with the complex problems such as non ...
LIU Fengtao 1, ZHOU Xiwen 2, ZHANG Chengbo 2, DAI Beibing 3, MO Hongyan 1
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Soil Masing Behaviour for Offshore Wind Turbines—Fatigue Design and a Simple Damping Model
Wind EnergyFatigue damage accumulation for offshore wind turbines is highly dependent on damping of the structure and particularly on the soil damping contribution during idling conditions.
Gerard V. Ryan +2 more
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Eurasian Physical Technical JournalA unified analytical framework is developed to describe the deformation resistance of metals under thermoplastic processing conditions. The proposed approach is based on the Hansel-Spittel constitutive equation and establishes a direct relationship ...
S. Sheyko +3 more
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CrystalsThis study investigates nanoscale material removal behavior and its correlation with subsurface damage of (100)-oriented β-Ga2O3 subjected to single-point diamond scratching across a range of normal loads.
Yanqiang Lu +4 more
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Continuum Based Plasticity Models for Cubic Symmetry Lattice Materials Under Multi-Surface Loading
Journal of the Korean Society for Advanced Composite Structures, 2011 The typical truss-lattice material successively packed by repeated cubic symmetric unit cells consists of sub-elements (SE) proposed in this study. The representative continuum model for this truss-lattice material such as the effective strain and stress relationship can be formulated by the homogenization procedure based on the notation of averaged ...
Woo-Hyun Seon, Jong-Wan Hu
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