The variational basis for the least-squares field- redistribution of strainFunctions in the finite element formulation of constrained media elasticity

Prathap, Gangan (1988) The variational basis for the least-squares field- redistribution of strainFunctions in the finite element formulation of constrained media elasticity. Technical Report. National Aeronautical Laboratory, Bangalore, India.

[img] PDF
tr_tm_st_8301.pdf
Restricted to Repository staff only

Download (1MB)

Abstract

The field-consistency paradigm offers an useful conceptual scheme to handle problems such as locking, delayed convergence and stress oscillations that frequently haunt the finite element formulation of ,constrained media elasticity. These problems can be overcome by various artifices - such as reduced integration mode decomposition, assumed strain functions etc.In this paper, we provide the variational jcistification for the use of field - redistributed strain functions to replace the strains derived conventionally from dis-placement lunctions, in the constrained energy terms.

Item Type: Monograph (Technical Report)
Uncontrolled Keywords: Stress oscillations;Finite element formulation;Constrained media elasticity
Subjects: ENGINEERING > Structural Mechanics
Depositing User: Users 90 not found.
Date Deposited: 11 Aug 2008
Last Modified: 24 May 2010 04:21
URI: http://nal-ir.nal.res.in/id/eprint/2851

Actions (login required)

View Item View Item