A fractional-order model for aging materials: An application to concrete

Massimiliano Zingales, Angela Beltempo, Luca Deseri, Oreste S. Bursi

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

In this paper, the hereditariness of aging materials is modeled within the framework of fractional calculus of variable order. A relevant application is made for the long-term behavior of concrete, for which the creep function is evaluated with the aid of Model B3. The corresponding relaxation function is derived through the Volterra iterated kernels and a comparison with the numerically-obtained relaxation function of Model B3 is also reported. The proposed fractional hereditary aging model (FHAM) for concretes leads to a relaxation function that fully agrees with the well-established Model B3. Furthermore, the FHAM takes full advantage of the formalism of fractional-order calculus to yield semi-analytic expressions in terms of material parameters.
Original languageEnglish
Pages (from-to)13-23
Number of pages11
JournalInternational Journal of Solids and Structures
Volume138
Publication statusPublished - 2018

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics
  • Modelling and Simulation

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