Accession Number:

AD0736349

Title:

Constitutive Matrix and Finite Element Formulation for a Deformation Theory of Plasticity.

Descriptive Note:

Technical rept.,

Corporate Author:

WATERVLIET ARSENAL N Y

Personal Author(s):

Report Date:

1971-10-01

Pagination or Media Count:

20.0

Abstract:

The report is concerned with three general approaches in the finite element formulation of small strain plasticity problems, using the Hencky-Nadai deformation theory as a mathematical model for the material behavior. The finite stress-strain matrix due to Havner is adapted into the secant modulus or direct-iterative approach. Two quasei-linear incremental forms of constitutive matrix are derived. An explicit relation is also given for the calculation of plastic strain increments in the incremental-initial strain approach. Particular attention is given to the finite element formulation using a combined moduli approach. A close similarity between two types of plasticity theories is shown. Author

Subject Categories:

  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE