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Rigid bodies for metal forming analysis with NIKE3D

Description: Perhaps the most common approximation in engineering is that, relative to its neighbors, a system component is structurally rigid. This paper presents a development of the rigid assumption for use in nonlinear, implicit finite element codes. In this method, computational economy is gained by condensing the size of the associated linear system of equations, eliminating the processing of rigid elements, and reducing the overall nonlinearity of the problem.
Date: January 25, 1995
Creator: Maker, B.N.
Partner: UNT Libraries Government Documents Department
open access

A nonlinear, implicit, three-dimensional finite element code for solid and structural mechanics - User`s Manual

Description: This report provides a user`s manual for NIKE3D, a fully implicit three-dimensional finite element code for analyzing the finite strain static and dynamic response of inelastic solids, shells, and beams. Spatial discretization is achieved by the use of 8-node solid elements, 2-node truss and beam elements, and 4-node membrane and shell elements. Over twenty constitutive models are available for representing a wide range of elastic, plastic, viscous, and thermally dependent material behavior. Co… more
Date: April 14, 1995
Creator: Maker, B.N.
Partner: UNT Libraries Government Documents Department
open access

Relative sensitivity of formability to anisotropy

Description: This work compares the relative importance of material anisotropy in sheet forming as compared to other material and process variables. The comparison is made quantitative by the use of normalized dependencies of depth to failure (forming limit is reached) on various measures of anisotropy, as well as strain and rate sensitivity, friction, and tooling. Comparisons are made for a variety of forming processes examined previously in the literature as well as two examples of complex stampings in th… more
Date: January 1, 1997
Creator: Logan, R.W. & Maker, B.N.
Partner: UNT Libraries Government Documents Department
open access

NIKE3D a nonlinear, implicit, three-dimensional finite element code for solid and structural mechanics user's manual update summary

Description: This report provides the NIKE3D user's manual update summary for changes made from version 3.0.0 April 24, 1995 to version 3.3.6 March 24,2000. The updates are excerpted directly from the code printed output file (hence the Courier font and formatting), are presented in chronological order and delineated by NIKE3D version number. NIKE3D is a fully implicit three-dimensional finite element code for analyzing the finite strain static and dynamic response of inelastic solids, shells, and beams. Sp… more
Date: March 24, 2000
Creator: Puso, M; Maker, B N; Ferencz, R M & Hallquist, J O
Partner: UNT Libraries Government Documents Department
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