Title

The Nonstationary Effects In Asymmetric, Angle-Ply Laminated Composite Plates

Abstract

The system in the title has been subjected to a parametric, nonstationary (NS) linear v(r)-vo + p/, and cyclic v(r) - vo±Ysinpr excitations. The NS linear responses settle on the initial, constant values for extended values of the excitation frequencies, thus they stabilize the stationary (ST) response. This is true for the initial conditions taken on the stationary curve, and for different ply-angles. For the initial conditions (l.C.) beyond the ST plots, the NS responses stay also near the initial conditions, but they have the wavy forms, whidi increase slightly for the lower values of the forcing frequencies. For the cyclic parametric excitations, the NS responses are sydic contained within the ranges of the excitation amplitudes:tp and (finite) response amplitudes above the ST initial values, raising up and down within these limits. It appears that they cover the whole area within the above described constraints. Ilie decisive effect of the cyclic NS inputs, i.e., almost instantaneous cyclic responses replacing the ST responses regardless of the l.C. and ST responses, is a bench mark of the cyclic NS. This behavior is distinctly different from the NS cyclic responses of the composite columns.

Publication Date

1-1-1993

Publication Title

Proceedings of the ASME Design Engineering Technical Conference

Volume

Part F167972-3

Number of Pages

277-286

Document Type

Article; Proceedings Paper

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1115/detc1993-0054

Socpus ID

85104193060 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85104193060

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