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The exhaustive list of topics in Viscoelasticity in which we provide Help with Homework Assignment and Help with Project is as follows:

  • Viscoelasticity:
    • Continuum Mechanics 
    • Concept of Stress and Strain.
    • Eulerian and Lagrangian frame.
    • Kinematics.
    • Balance Equations.
    • Constitutive Modeling.
    • Linearized elasticity.
    • Newtonian fluid mechanics.
    • Laplace tranform and its properties.
    • Inverse.
    • Fourier transform.
    • Step function.
    • Dirac Delta function.
    • Stieltjes Convolution.
    • Volterra Integral equations.
    • Mechanical behavior of real life engineering materials.
    • Viscoelastic behavior.
    • Comparison to elastic solids and Newtonian fluids.
    • What are viscoelastic fluids and solids?
    • Experimental results of creep and recovery.
    • Stress relaxation.
    • Oscillatory shear of polymeric fluids.
    • Gels.
    • Asphalt.
    • Rubber.
    • Fiber composites.
    • Constitutive equations for one-dimensional response of viscoelastic materials.
    • Springs and dashpots.
    • Maxwell model.
    • Kelvin-Voigt model.
    • Standard linear solid.
    • Burgers model.
    • Generalized models.
    • Creep compliance and relaxation modulus.
    • Boltzmann Superposition principle.
    • Integral models.
    • Influence of constant stress/strain rate history.
    • Triangular, trapezoidal and sinusoidal stress and strain cycles.
    • Complex modulus.
    • Calculation of energy storage and dissipation.
    • Relation between creep compliance.
    • Stress relaxation and complex modulus.
    • Characteristic creep.
    • Relaxation and process time.
    • Fading memory hypothesis.
    • Constitutive response of three dimensional linear isotropic viscoelastic response.
    • Concept of Poisson’s ratio.
    • Volumetric and pure shear response.
    • Principal directions of stress and strains for three dimensional viscoelasticity.
    • Stress Analysis for beam problems.
    • Bending.
    • Axial load.
    • Torsion.
    • Elasticviscoelastic correspondence principle.
    • Limits on its applicability.
    • Thick walled viscoelastic tube.
    • Point loading of viscoelastic solid.
    • Free and forced oscillations.
    • Time-temperature superposition.
    • WLF equation.
    • Influence of temperature on stress analysis.
    • Creep experiments.
    • Stress relaxation.
    • Wave propagation.
    • Dynamic measurements.
    • Isothermal and adiabatic conditions.
    • Non-Linear Viscoelasticity.
    • Reduction to linear theory.
    • Uniaxial and multiaxial loading.
    • Non-linear creep at elevated temperature.
    • Stress analysis examples.