Modeling the viscoelastic function of asphalt concrete using a spectrum method

Sungho Mun, Goangseup Zi

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


A continuous spectrum method is proposed and applied for modeling the time-domain viscoelastic function of asphalt concrete materials. This technique, employing a Wiechert model for the relaxation function and a Kelvin model for the compliance function, is found to substantially enhance accuracy and consistency compared to existing methods. Furthermore, this paper shows how to determine a time-domain Prony series representation, which can be used efficiently for numerical analysis, such as finite element analysis, from the complex modulus in the frequency domain, based on the continuous spectrum method.

Original languageEnglish
Pages (from-to)191-202
Number of pages12
JournalMechanics of Time-Dependent Materials
Issue number2
Publication statusPublished - 2010 May


  • Continuous spectrum
  • Kelvin model
  • Prony series representation
  • Wiechert model

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Materials Science
  • Aerospace Engineering
  • Mechanical Engineering


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