Dynamic behavior of polyethylene terephthalate (PET) foam under compressive loads: Experimental and numerical study

Arturo Gomez, Enrique Barbero*, Sonia Sanchez‑Saez

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The behavior of PET foam under quasi-static and dynamic compressive loads is analyzed. An experimental study is performed to evaluate its mechanical behavior and energy absorption characteristics at different strain rates. Also, a numerical model is developed to reproduce the dynamic compression behavior of the PET foam. Differences between the properties obtained in the quasi-static and dynamic tests show that the strength, stiffness and energy absorption efficiency are dependent on strain rate. The evolution of the Poisson ratio with strain and strain ratio is studied. A decrease in the Poisson ratio is observed as the strain rate increases.

Original languageEnglish
JournalMechanics of Advanced Materials and Structures
ISSN1537-6494
DOIs
Publication statusAccepted/In press - 2024

Keywords

  • DIC
  • dynamic compression
  • dynamic crushing
  • foam
  • localization
  • PET

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