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Computers & Structures
Article . 2015 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Forward–backward-difference time-integrating schemes with higher order derivatives for non-linear finite element analysis of solids and structures

Authors: Kaunda, MAE;

Forward–backward-difference time-integrating schemes with higher order derivatives for non-linear finite element analysis of solids and structures

Abstract

Abstract One-step multiple-value methods are developed which involve an accurate predictor method with higher derivatives, followed by a corrector method cast in form of an enhanced Newton–Raphson scheme. The generalized Newmark (GNpj) method may be recovered as a special case. The algorithms serve to match the accuracy of the fourth-order Runge–Kutta–Fehlberg method. Challenges to solve more reliably, accurately and efficiently non-linear differential equations are highlighted as stemming from amplitude and phase shift errors introduced by discretization in space and time – a continuous-discrete transformation. The classical stability tool of spectral radius is performed on linear systems whereas Liapunov method on nonlinear systems.

Country
South Africa
Related Organizations
Keywords

Liapunov stability, Nonlinear dynamics, Implicit time-integrating schemes, One-step multiple-value methods, 518, Higher-order derivatives, Spectral radius

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average
Green