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A 3D fractional elastoplastic constitutive model for concrete material
International Journal of Solids and Structures, 2019The core mission to establish elastoplastic constitutive model is how to determine the magnitude and direction of plastic strain increment for material under the given load. Fractional derivative provides a powerful tool for determining the nonorthogonal
D. Lu +3 more
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A physically based visco-hyperelastic constitutive model for soft materials
Journal of the mechanics and physics of solids, 2019Viscoelasticity is an essential mechanical property of soft materials. Many constitutive models have been proposed to capture this mechanical behavior, but few physically based models were developed due to the challenge to incorporate the micro ...
Yuhai Xiang +8 more
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, 2019
A thermo-hydro-mechanical constitutive model is developed for geomaterials based on the tenet of particle rearrangement in porous granular materials undergoing thermodynamic processes. In this model, the concepts of particle entropy, particle temperature,
B. Bai +3 more
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A thermo-hydro-mechanical constitutive model is developed for geomaterials based on the tenet of particle rearrangement in porous granular materials undergoing thermodynamic processes. In this model, the concepts of particle entropy, particle temperature,
B. Bai +3 more
semanticscholar +1 more source
Construction and Building Materials, 2018
The latest experimental studies indicate that polypropylene fiber is able to remarkably enhance the ability of concrete to resist impact loading and crack.
Hua Zhang +4 more
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The latest experimental studies indicate that polypropylene fiber is able to remarkably enhance the ability of concrete to resist impact loading and crack.
Hua Zhang +4 more
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Generalities on Constitutive Models
2023The balance equations of a body form an under-determined differential system, insufficient to yield specific results unless further relations are supplied. The balance equations for a continuum (free from internal structures) are the continuity equation, the equation of motion, and the balance of energy, namely five equations, for the fourteen unknowns
Angelo Morro, Claudio Giorgi
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Mechanical properties and damage constitutive model of coal in coal-rock combined body
International Journal of Rock Mechanics And Mining Sciences, 2018Coal and rock mass bear loads together in underground engineering such as coal mining and roadway support, resulting in different mechanical properties from those of pure coal and rock mass.
Xiang-Ru Liu +5 more
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CONSTITUTIVE MODEL VERIFICATION
Undrained seismic response of underground structures, 2020openaire +2 more sources
2012
Numerical modelling of any problem requires noncontroversial statements of equilibrium and of kinematics or compatibility (the definition of strain); the constitutive response which links stress change and strain change is much more uncertain.
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Numerical modelling of any problem requires noncontroversial statements of equilibrium and of kinematics or compatibility (the definition of strain); the constitutive response which links stress change and strain change is much more uncertain.
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Instabilities and constitutive modelling
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2006The plastics industry today sees huge wastage through product defects caused by unstable flows during the manufacturing process. In addition, many production lines are throughput-limited by a flow speed threshold above which the process becomes unstable. Therefore, it is critically important to understand the mechanisms behind these instabilities.
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