Applicability of a two-parameter failure criterion to wheat en masse

Q. Zhang, V. M. Puri, H. B. Manbeck

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


A two-parameter failure criterion established for cohesionless soils was applied to wheat en masse. Two parameters, failure constant η and exponent m, were determined for wheat at a moisture content of 8.1% (d.b.) and initial bulk density of 817 kg/m3. The criterion satisfactorily describes the failure of wheat en masse in the triaxial compression stress state. When both parameters are nonzero, the lateral to vertical stress ratio (k-value) determined from the two-parameter criterion increases with the vertical stress, whereas when the failure exponent m is zero, the ratio is constant and approximately equal to that determined from the Mohr-Coulomb failure criterion.

Original languageEnglish (US)
Pages (from-to)571-575
Number of pages5
JournalTransactions of the American Society of Agricultural Engineers
Issue number2
StatePublished - Mar 1994

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences (miscellaneous)


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