On The Inter-Conversion Between Viscoelastic Material Functions of Polycarbonate

2012 ◽  
Author(s):  
Luigi Grassia ◽  
Alberto D'Amore ◽  
Pasquale Verde
Keyword(s):  
Viscoelastic Material ◽  
Material Functions

Interconversion of linearly viscoelastic material functions expressed as Prony series: a closure

2012 ◽  
Vol 17 (1) ◽  
pp. 53-82 ◽  
Author(s):  
Jacques Luk-Cyr ◽  
Thibaut Crochon ◽  
Chun Li ◽  
Martin Lévesque
Keyword(s):  
Viscoelastic Material ◽  
Prony Series ◽  
Material Functions

Effect of Progressive Aging on the Viscoelastic Material Functions of Asphalt Concrete and its Binder

2017 ◽  
Author(s):  
A. S. M. Asifur Rahman ◽  
Hasan M. Faisal ◽  
Rafiqul A. Tarefder
Keyword(s):  
Shear Modulus ◽  
Viscoelastic Material ◽  
Asphalt Concrete ◽  
Complex Modulus ◽  
Superposition Principle ◽  
Asphalt Binder ◽  
Relaxation Modulus ◽  
Concrete Specimen ◽  
Material Functions ◽  
Four Levels

In this study, field collected loose asphalt-aggregate mixtures were used to prepare cylindrical asphalt concrete specimen using a Superpave gyratory compactor and samples were subjected to four levels of aging. Unaged and aged samples were then tested for complex modulus, relaxation modulus, and creep compliance in the laboratory at different temperatures and loading conditions. To determine broadband characteristics, mastercurves of related viscoelastic material functions were determined by applying time-temperature superposition principle. A comparison study showed that increasing levels of aging have significant effect on viscoelastic functions of asphalt concrete. In addition, liquid asphalt binder corresponding to the asphalt-aggregate mixture was tested for complex shear modulus at various levels of aged conditions, using a dynamic shear rheometer. Results showed that even though the binder shear modulus increases significantly with aging, asphalt concrete modulus does not necessarily show similar increment.

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