Joint Interface Modes: Numerical 3D-Benchmark Studies

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

1 Citation (Scopus)

Abstract

The mechanical characteristics of complex elastic structures, which are assembled of substructures, are significantly influenced by the local and nonlinear constitutive behavior of the involved joints, like bolted joints, spot welded seems and others. Computations of jointed structures, which are based on classical modes, lead to an inefficient balance between computational time and accuracy. Either the joint properties are considered and linearized at the time of the mode generation, which is inaccurate, or a huge number of master nodes are required, which lead to an inefficient time integration. Recently proposed joint interface modes (JIMs), which have been presented at the IMAC 25th [1], are able to overcome that problem. Based on JIMs it is possible to perform mode based dynamic computations of jointed elastic structures utilizing local and nonlinear contact and friction models. This approach is characterized by almost the same accuracy as the full finite element method without loosing the efficiency of modal computation. This paper contains two subsections: First kinematical considerations concerning jointed structures will be discussed and afterwards, some numerical benchmark studies are presented in order to demonstrate the accuracy and efficiency of JIMs.
Original languageEnglish
Title of host publicationIMAC-XXVI
Subtitle of host publicationConference and Exposition on Structural Dynamics - Technologies for Civil Structures
Publication statusPublished - 2008
EventIMAC XXVI - Orlando, Florida, United States
Duration: 4 Feb 20087 Feb 2008

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Conference

ConferenceIMAC XXVI
CountryUnited States
CityOrlando, Florida
Period04.02.200807.02.2008

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