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Showing 1 to 6 of 6 for “"Nonlinear constitutive relations"”.
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Numerical Simulation of Reinforced Concrete Subjected to Multiaxial Stress Conditions
… This composite material demonstrates a highly nonlinear behavior caused by cracking, crushing, aggregate interlock, bond slip, dowel action, shrinkage and creep. Because the reinforced concrete involves so many nonlinear phenomena interacting with one another, the formulation of a "complete" …
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Compaction of soil by a vibratory roller: a theoretical description
… of the soil mass and in the application of nonlinear constitutive relations that predict the continuous evolution of residual stresses in the soil. The model was used to determine whether compactor performance might be improved by changes in the forward speed of the compactor or by …
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A viscous-viscoelastic creep model
… stresses of combined tension and torsion, nonlinear constitutive relations were developed and predictions by the theory were compared with the creep data. In the viscous-viscoelastic creep model the total strain was separated into four strain components: elastic, time-independent plastic, …
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A Micromechanics Study on Ferroelectrics and Multiferroic Composites
… Based on the experimental observations, the nonlinear electromechanical coupling responses of ferroelectrics are strongly depending on the frequency of the applied electric field. In order to interpret the influence of a frequency, an exponential function is introduced to express the remanent …
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A Geometrically nonlinear curved beam theory and its finite element formulation
… and efficient means to handle a large range of nonlinear beam problems. A geometrically exact curved/twisted beam theory, which assumes that the beam cross-section remains rigid, is re-examined and extended using orthonormal reference frames starting from a 3-D beam theory. The relevant …
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Nonlinear Effects in Contactless Ultrasound Energy Transfer Systems
… for radiation effects. The linear models neglect nonlinear effects associated with the nonlinear acoustic wave propagation as well as the receiver's electroelastic nonlinearities on the energy transfer characteristics, which become significant at high source strengths. In this dissertation, we …