Results 1 to 10 of about 207,558 (286)
LOCALIZATION ANALYSIS OF AN ORTHOTROPIC MULTI-SURFACE PLASTICITY MODEL UNDER UNIAXIAL STRESS
Acta Polytechnica CTU Proceedings, 2020 Numerical simulations of masonry structures are often based on continuum macromodelling approaches that need constitutive laws able to phenomenologically reproduce the behavior of the material.
Claudio Pagani +2 more
doaj +3 more sources
Ductile fracture simulations using a multi-surface coupled damage-plasticity model [PDF]
, 2017 In this paper, an isotropic porous metal plasticity model accounting for both void growth by diffuse plastic deformation and void ‘coalescence’ by localization of plastic flow in the inter-void ligaments is presented.
Keralavarma, S. M., Reddi, D.
core +2 more sources
Computers and Structures, 2019 Abstract In this work we develop multi-surface plasticity model which can reproduce the inelastic behavior and failure modes of concrete in tension, compression and shear. The main novelty of the proposed concrete model can also capture all different phases of localized failure for massive structures, where the elastic behavior is followed by the ...
Emir Karavelic, Adnan Ibrahimbegovic
exaly +3 more sources
On the applicability of multi-surface, two-surface and non-linear kinematic hardening models in multiaxial fatigue [PDF]
Fracture and Structural Integrity, 2015 In this work, a comparison between NLK and Mróz-Garud’s multi-surface formulations is presented. A unified common notation is introduced to describe the involved equations, showing that the Mróz-Garud model can be regarded as a particular case of the NLK
M.A Meggiolaro, J.T.P. Castro, H. Wu
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Energy multi-scale method to analyze the scale effect of soil particles
Frontiers in Materials, 2023 As a common geological material, soil is a key aspect of construction engineering. Soil has typical multi-scale characteristics, but current multi-scale methods analyze these characteristics only in regard to geometric space.
Jian Chen +4 more
doaj +1 more source
Fatigue life assessment of a non-load carrying fillet joint considering the effects of a cyclic plasticity and weld bead shape [PDF]
Fracture and Structural Integrity, 2016 Fatigue life depends strongly on irreversible contributions that accumulate during cyclic loading and unloading of structures. However, the correct identification of the loading path in terms of uniaxial or multi-axial stress states, proportional or non ...
S. Tsutsumi +3 more
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Return mapping scheme for the Hoek-Brown model with tension cut-off
Acta Polytechnica CTU Proceedings, 2023 The present paper revisits a stress update procedure for the Hoek-Brown plasticity model enhanced by a Rankine type of tension cut-off failure criterion.
Tereza Žalská, Michal Šejnoha
doaj +1 more source
Formulation and implementation of a practical multi-surface soil plasticity model [PDF]
Computers and Geotechnics, 2020 Abstract This paper presents a new constitutive model for clay, for undrained monotonic and cyclic loading, that has been developed specifically for geotechnical design applications. The model employs a parallel Iwan approach, consisting of multiple elastic-perfectly-plastic micro models. Degradation of stiffness and strength during cyclic loading is
Whyte, SA +3 more
openaire +2 more sources
Review on the prediction of residual stress in welded steel components [PDF]
, 2020 Residual stress after welding has negative effects on the service life of welded steel components or structures. This work reviews three most commonly used methods for predicting residual stress, namely, empirical, semi-empirical and process simulation ...
Abdel Wahab, Magd +2 more
core +1 more source
Frontiers in Cellular and Infection Microbiology, 2021 White leaf spot pathogen: Neopseudocercosporella capsellae causes significant damage to many economically important Brassicaceae crops, including oilseed rape through foliar, stem, and pod lesions under cool and wet conditions.
Niroshini Gunasinghe +4 more
doaj +1 more source