SYMPOSIA PAPER Published: 01 January 2000
STP13501S

A Newton Algorithm for Solving Non-Linear Problems in Mechanics of Structures Under Complex Loading Histories

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A Newton algorithm is discussed. This algorithm allows for studying nonlinear material behavior, such as plasticity and viscoplasticity. The material behavior is described by so-called internal variables. The model applied in this paper was developed by Lemaitre and Chaboche. The Newton algorithm is implemented as a user-subroutine in the commercial finite-element method package ABAQUS. The results of a numerical analysis of the rotation of an aircraft turbine disk are presented. Cyclic loading conditions are studied, and the results are compared with numerical results in the literature.

Author Information

Arzt, M
GKSS Forschungszentrum Geesthacht GmbH, Institut für Werkstofforschung, Geesthacth, Germany
Brocks, W
GKSS Forschungszentrum Geesthacht GmbH, Institut für Werkstofforschung, Geesthacth, Germany
Mohr, T
GKSS Forschungszentrum Geesthacht GmbH, Institut für Werkstofforschung, Geesthacth, Germany
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Details
Developed by Committee: E08
Pages: 126–135
DOI: 10.1520/STP13501S
ISBN-EB: 978-0-8031-5435-3
ISBN-13: 978-0-8031-2865-1