Characterization of cross-anisotropic aggregate base behavior from stress path tests

Erol Tutumluer, Umit Seyhan

Research output: Contribution to journalConference articlepeer-review


A new methodology is presented in this paper for determining cross-anisotropic aggregate properties, i.e., directional dependency of moduli and Poisson's ratios, from stress path testing. The proposed laboratory characterization procedure requires conducting large stress excursion tests performed under slightly different stress path slopes at similar stress states that are representative of pavement wheel loading conditions. In accordance, cross-anisotropic aggregate properties are determined by varying slightly the stress path slopes during testing and then by employing an error minimization approach to interpret the test results. The solution methodology adopted also satisfies positive strain energy requirements. Such an anisotropic material property set obtained from following the proposed methodology would essentially be useful in the finite element analysis of the anisotropic and stress dependent granular material behavior often observed in unbound pavement layers.

Original languageEnglish (US)
Pages (from-to)18-34
Number of pages17
JournalGeotechnical Special Publication
Issue number123
StatePublished - 2004
EventRecent Advances in Materials Characterization and Modeling of Pavement Systems - New York, NY., United States
Duration: Jun 4 2002Jun 4 2002

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology


Dive into the research topics of 'Characterization of cross-anisotropic aggregate base behavior from stress path tests'. Together they form a unique fingerprint.

Cite this