Combination of the critical displacement method with a damage model for structural instability analysis

authored by: E. Oñate, H. Tschöpe, Peter Wriggers
Abstract: The paper describes the extension of the critical displacement method (CDM), presented by Oñate and Matias in 1996, to the instability analysis of structures with non-linear material behaviour using a simple damage model. The extended CDM is useful to detect instability points using a prediction of the critical displacement field and a secant load-displacement relationship accounting for material non-linearities. Examples of application of CDM to the instability analysis of structures using bar and solid finite elements are presented.
Organisation(s): Institute of Mechanics and Computational Mechanics
External Organisation(s): Universitat Politècnica de Catalunya
Type: Article
Journal: Engineering Computations (Swansea, Wales)
Volume: 18
Pages: 642-662
No. of pages: 21
ISSN: 0264-4401
Publication date: 09.08.2001
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Software, Engineering(all), Computer Science Applications, Computational Theory and Mathematics
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