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Implicit time integration for pseudodynamic tests
Author(s) -
Shing PuiShum B.,
Vannan Mani T.,
Cater Edward
Publication year - 1991
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290200605
Subject(s) - spurious relationship , convergence (economics) , computer science , displacement (psychology) , algorithm , scheme (mathematics) , dual (grammatical number) , mathematics , mathematical analysis , psychology , art , literature , machine learning , economics , psychotherapist , economic growth
Abstract The use of unconditionally stable implicit time integration techniques for pseudodynamic tests has been recently proposed and advanced by several researchers. Inspired by such developments, a pseudodynamic test scheme based on an unconditionally stable implicit time integration algorithm and dual displacement control is presented in this paper. The accuracy of the proposed scheme is proved with error‐propagation analysis. It is shown by numerical examples and verification tests that the error‐correction method incorporated can eliminate the spurious higher‐mode response, which can often be excited by experimental errors. The practicality of the proposed scheme lies in the fact that the implementation is as easy as that of explicit schemes and that the convergence criteria required are compatible with the accuracy limits of ordinary test apparatus.