DETERMINATION OF ELASTOPLASTIC CONSTITUTIVE PARAMETERS FOR WHEAT EN MASSE.

Q. Zhang, Virendra Puri, H. B. Manbeck

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

A constitutive stress-strain equation, formulated from P. V. Lade's elastoplastic theory, was used to model en masse behavior of wheat. Triaxial tests were performed at a moisture content of 8. 1% (d. b. ) and an initial bulk density of 817 kg/m**3 (51 pcf) to evaluate the material property parameters included in the theory. The estimated fourteen parameters were used in the constitutive equation to calculate stress-strain relationships for wheat en masse in axial compression and isotropic compression loading conditions. Results showed that Lade's theory adequately describes the stress-strain behavior of wheat en masse for the conditions tested.

Original languageEnglish (US)
Pages (from-to)1739-1746
Number of pages8
JournalTransactions of the American Society of Agricultural Engineers
Volume29
Issue number6
StatePublished - Nov 1 1986

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences (miscellaneous)

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