Investigation of Prony series model related asphalt mixture properties under different confining pressures

Li, Linglin; Li, Wenlong; Wang, Hao; Zhao, Jingnan; Wang, Zhongyuan; Dong, Ming; Ding, Han

doi:10.1016/j.conbuildmat.2018.01.120

Cited by 24 publications

(13 citation statements)

References 40 publications

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“…Since the initial data for the description of the material behavior were the experimental relaxation curves of the mandrel materials, the behavior can be described (according to [10]) as linear viscoelastic and thermorheological simple. In this case, as the constitutive relations it is suggested to use the Prony viscoelastic model [15][16][17][18][19][20], in which the sum of exponents with a constant bulk compression modulus is taken as the relaxation kernel:…”

Section: Mathematical Model For Describing the Materials Behaviourmentioning

confidence: 99%

ANSYS Simulation of the Thermomechanical Behavior of a Large-Sized Composite Mandrel with Consideration of Viscoelasticity

2022

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The article addresses the modeling of the process of manufacturing a large-sized shell, given the thermomechanical behavior and viscoelasticity of the composite mandrel. The results of the experimental identification of viscoelasticity parameters of the examined material are presented. A numerical algorithm for adapting the experimental data for the ANSYS Mechanical APDL finite element analysis package is proposed. A Prony series expansion of the relaxation kernel is used as a model for describing the material behavior. The effect of temperature on the rate of relaxation processes is taken into account through the application of a temperature-time analogy according to the Williams–Landel–Ferry formula. The selected model with the calculated parameters was implanted into the commercial package of ANSYS Mechanical APDL. Simulation of two process steps of manufacturing a large-sized product was performed: winding and heat treatment of the shell. For this purpose, the quasistatic problem of mechanics and unsteady thermal conduction under conditions of convective heat transfer were solved by the finite element method. The influence of thermomechanical behavior of the mandrel material on the normal pressure acting on the mandrel surface as a function of temperature and force factors was estimated quantitatively and qualitatively. It was found that with respect to the nonlinear behavior of the composite material, the pressure level decreases by 50% compared to the case of using models of elastic behavior. This result justifies the importance of using complex models of material behavior in studying long-term technological processes, especially those associated with high-temperature effects.

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Section: Mathematical Model For Describing the Materials Behaviourmentioning

confidence: 99%

ANSYS Simulation of the Thermomechanical Behavior of a Large-Sized Composite Mandrel with Consideration of Viscoelasticity

2022

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“…However, this is an unnecessary restriction of the general theory. In this work, the bulk modulus is neglected, and the shear modulus can be expressed in a Prony series as given in [42]:…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Effect of Temperature on the Viscoelastic Properties of Carbon Nanotube Reinforced Polypropylene Composites

Huang

Rodrigue

Dong

2021

Advances in Materials Science and Engineering

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Finite element method (FEM) is used to analyze the mechanical properties of carbon nanotubes (CNTs) reinforced polypropylene (PP) composites. Firstly, polypropylene is assumed as a viscoelastic material, while carbon nanotubes are assumed as linear elastic materials to study the effect of temperature on the mechanical properties of neat PP and CNT/PP nanocomposites. Secondly, to compare the viscoelastic properties of neat PP and CNT/PP nanocomposites, the relaxation time at a specific temperature is used to investigate the relaxation of the nanocomposites for fixed tensile displacements. Thirdly, the effect of CNT volume fraction on the viscoelastic properties of nanocomposites is studied at different temperatures. Finally, to better understand the stress distribution along the CNT axial direction, a single carbon nanotube is isolated in the matrix to compare the stress distribution with nonisolated CNTs.

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“…It should be stressed that there is no fatigue damage introduced in all these scenarios. The dynamic shear moduli and phase angles were obtained at the above temperatures and frequencies, and master curves of the dynamic shear modulus and phase angle can be accurately constructed [46]. Then, by using the interconversion equations for linear viscoelastic material [47], shear relaxation modulus can be accurately calculated, where the model parameter and can be determined.…”

Section: B) Frequency Sweep and Fatigue Tests To Determine Viscoelasticity And Fatigue Propertiesmentioning

confidence: 99%

Fatigue cracking characterisations of waste-derived bitumen based on crack length

Gao

Zhang

2021

International Journal of Fatigue

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Investigation of Prony series model related asphalt mixture properties under different confining pressures

Cited by 24 publications

References 40 publications

ANSYS Simulation of the Thermomechanical Behavior of a Large-Sized Composite Mandrel with Consideration of Viscoelasticity

ANSYS Simulation of the Thermomechanical Behavior of a Large-Sized Composite Mandrel with Consideration of Viscoelasticity

Effect of Temperature on the Viscoelastic Properties of Carbon Nanotube Reinforced Polypropylene Composites

Fatigue cracking characterisations of waste-derived bitumen based on crack length

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