WITHDRAWN: A new approach of material nonlinear finite element analysis

Abstract

Abstract In this article, a novel approach is proposed for solving material nonlinear analysis problems in which a torsion problem is solved. A torsion specimen was tested in the lab and with the experimental data, shear stress and shear strain are first defined. It is to be noticed that in the basic analysis procedure, linearity assumptions are nowhere used. For example, use of shear modulus is eliminated in the basic formulation. Instead, shear stress function and shear strain functions are used as the material input. These shear stress and shear strain functions are derived from the experimental torsion-rotation data. The methodology gives ideal result, either it is linear or nonlinear range of the loading condition, with much more accuracy than the conventional linear analysis approaches. It could be realized that the methodology could be regarded as stress-based structural analysis procedure.