Efficient reduction method based on trial vector derivatives for nonlinear transient analysis of multilayer sheet structures

Research output: Chapter in Book/Report/Conference proceedingsConference contribution

Abstract

For the dynamic response of multilayer sheet structures it is important to take nonlinear contact and friction forces between the layers into account. The nonlinearities inside the joints can significantly influence the dynamic behavior of the entire structure. For the dynamic analysis of such structures conventional computational approaches have an unbalanced ratio between computational time and accuracy. In order to overcome this problem, so-called “Joint Interface Modes” (JIMs) are used. These JIMs, which are problem-oriented trial vectors, extend the reduction base of classical trial vector based reduction methods. In this contribution a new calculation approach for JIMs based on trial vector derivatives is introduced. The result quality of the presented method is comparable to the direct finite element method but the computational effort is extremely low due to model order reduction.
Original languageEnglish
Title of host publicationPAMM Vol. 14
DOIs
Publication statusPublished - 2014
EventGAMM 2014 - Erlangen, Germany
Duration: 10 Mar 201414 Mar 2014

Conference

ConferenceGAMM 2014
CountryGermany
CityErlangen
Period10.03.201414.03.2014

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