Transient analysis including the low- and the medium-frequency ranges of engineering structures

Authors:
Mathilde Chevreuil;Pierre Ladevèze;Philippe Rouch
Affiliations:
LMT Cachan (ENS Cachan, CNRS, Paris 6 University), 61 avenue du Président Wilson, 94235 Cachan Cedex, France;LMT Cachan (ENS Cachan, CNRS, Paris 6 University), 61 avenue du Président Wilson, 94235 Cachan Cedex, France;LMT Cachan (ENS Cachan, CNRS, Paris 6 University), 61 avenue du Président Wilson, 94235 Cachan Cedex, France
Venue:
Computers and Structures
Year:
2007

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Abstract

This paper deals with a computational method for transient dynamic analysis which enables one to cover both the low- and medium-frequency ranges. This is a frequency approach in which the low-frequency part is obtained through a classical technique while the medium-frequency part is handled through the Variational Theory of Complex Rays (VTCR) initially introduced for vibrations. The aim of this paper is to show the capabilities of the method for transient analyses of complex engineering structures submitted to impact loadings.